5 changed files with 673 additions and 0 deletions
@ -0,0 +1,274 @@ |
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FROM live-bootstrap |
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|
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#mkdir -p /var/cache/distfiles; cd /var/cache/distfiles |
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#curl -LO http://gitweb.gentoo.org/proj/portage.git/snapshot/portage-3.0.68.tar.bz2 |
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#curl -LO http://distfiles.gentoo.org/snapshots/squashfs/gentoo-20250801.xz.sqfs |
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#curl -LO https://github.com/plougher/squashfs-tools/archive/refs/tags/4.7.2/squashfs-tools-4.7.2.tar.gz |
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## TODO: gentoo currently uses squashfs-tools-4.7, but that fails to build, upgraded to 4.7.2 |
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|
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WORKDIR /tmp |
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|
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# Build squashfs-tools to extract the ::gentoo tree |
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# TODO: Include in live-bootstrap proper |
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RUN tar xf /var/cache/distfiles/squashfs-tools-4.7.2.tar.gz && \ |
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cd squashfs-tools-4.7.2 && \ |
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make -C squashfs-tools install \ |
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INSTALL_PREFIX=/usr \ |
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LZO_SUPPORT=0 LZ4_SUPPORT=0 ZSTD_SUPPORT=0 && \ |
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cd .. && \ |
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rm -rf squashfs-tools-4.7.2 |
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|
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# Make some additional root modifications |
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RUN cp /usr/include/asm-generic/mman.h /usr/include/asm # needed by dev-libs/openssl |
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|
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# Unpack the ::gentoo tree |
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RUN unsquashfs /var/cache/distfiles/gentoo-20250801.xz.sqfs && \ |
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mkdir -p /var/db/repos && \ |
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rm -rf /var/db/repos/gentoo && \ |
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mv squashfs-root /var/db/repos/gentoo |
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|
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# Install temporary copy of portage |
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RUN tar xf /var/cache/distfiles/portage-3.0.68.tar.bz2 && \ |
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ln -sfT portage-3.0.68 portage |
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|
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# Add portage user/group |
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RUN echo 'portage:x:250:250:portage:/var/tmp/portage:/bin/false' >> /etc/passwd && \ |
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echo 'portage::250:portage' >> /etc/group |
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|
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# Create cross repository |
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RUN <<'EOR' |
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mkdir -p /var/db/repos/cross/profiles |
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echo cross > /var/db/repos/cross/profiles/repo_name |
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mkdir -p /var/db/repos/cross/metadata |
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printf '%s\n' 'masters = gentoo' 'thin-manifests = true' \ |
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> /var/db/repos/cross/metadata/layout.conf |
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mkdir -p /var/db/repos/cross/cross-base |
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ln -sfT /var/db/repos/gentoo/sys-devel/binutils /var/db/repos/cross/cross-base/binutils |
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ln -sfT /var/db/repos/gentoo/sys-devel/gcc /var/db/repos/cross/cross-base/gcc |
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mkdir -p /var/db/repos/cross/cross-base/glibc |
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printf '%s\n' EAPI=8 SLOT=0 KEYWORDS='"*"' > /var/db/repos/cross/cross-base/glibc/glibc-0.ebuild |
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EOR |
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|
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# Register i686-cross-linux-gnu toolchain |
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RUN <<'EOR' |
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echo cross-i686-cross-linux-gnu >> /var/db/repos/cross/profiles/categories |
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ln -sfT cross-base /var/db/repos/cross/cross-i686-cross-linux-gnu |
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EOR |
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|
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# Configure prefix for host tools |
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RUN <<'EOR' |
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mkdir -p /cross/etc/portage/make.profile |
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cat > /cross/etc/portage/make.profile/make.defaults << 'EOF' |
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FETCHCOMMAND="curl -k --retry 3 -y 60 --ftp-pasv -o \"\${DISTDIR}/\${FILE}\" -L \"\${URI}\"" |
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RESUMECOMMAND="curl -C - -k --retry 3 -y 60 --ftp-pasv -o \"\${DISTDIR}/\${FILE}\" -L \"\${URI}\"" |
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FEATURES="-news -sandbox -usersandbox -pid-sandbox -ipc-sandbox -network-sandbox -parallel-fetch" |
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BINPKG_COMPRESS=bzip2 |
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CLEAN_DELAY=0 |
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|
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ARCH=x86 |
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ACCEPT_KEYWORDS="$ARCH" |
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CHOST=i686-unknown-linux-musl |
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IUSE_IMPLICIT="prefix prefix-guest kernel_linux elibc_musl elibc_glibc sparc m68k alpha amd64 x86" |
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USE="prefix prefix-guest kernel_linux elibc_musl x86 python_targets_python3_13" |
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|
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C_INCLUDE_PATH="$EROOT/usr/include" |
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CPLUS_INCLUDE_PATH="$EROOT/usr/include" |
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LIBRARY_PATH="$EROOT/usr/lib" |
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PKG_CONFIG_PATH="$EROOT/usr/lib/pkgconfig:$EROOT/usr/share/pkgconfig" |
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LDFLAGS="-Wl,--disable-new-dtags,-rpath,$EPREFIX/usr/lib" |
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EOF |
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cat > /cross/etc/portage/repos.conf << 'EOF' |
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[cross] |
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location = /var/db/repos/cross |
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EOF |
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cat > /cross/etc/portage/package.use << 'EOF' |
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dev-lang/perl minimal |
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dev-libs/libxml2 -python |
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sys-apps/file -seccomp |
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sys-apps/util-linux -su |
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cross-i686-cross-linux-gnu/gcc -sanitize -fortran openmp |
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EOF |
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cat > /cross/etc/portage/make.profile/package.provided << 'EOF' |
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sys-devel/binutils-2.27 |
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sys-devel/gcc-6.2 |
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app-arch/xz-utils-0 |
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EOF |
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mkdir -p /cross/etc/portage/env/cross-i686-cross-linux-gnu |
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cat > /cross/etc/portage/env/cross-i686-cross-linux-gnu/gcc << '_EOF' |
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EXTRA_ECONF='--with-sysroot=/gentoo' |
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#EXTRA_ECONF="$EXTRA_ECONF --enable-shared --enable-threads=posix" # TODO: test without |
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#EXTRA_ECONF="$EXTRA_ECONF --enable-host-shared" # Needed because --enable-host-pie is enabled in ebuild, fixed in GCC 15 |
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#EXTRA_ECONF="$EXTRA_ECONF --enable-host-bind-now" |
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#post_src_prepare() { |
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## Avoid configuration bug triggered by --disable-shared -enable-shared |
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#sed -i '/enable_shared | enable_static) ;;/d' config-ml.in || die |
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#} |
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post_src_install() { |
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cat > "$ED/usr/lib/gcc/$CTARGET/specs" << 'EOF' |
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*link: |
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+ %{!shared:%{!static:%{!static-pie:-dynamic-linker %{m64|mx32:;:/gentoo/lib/ld-linux.so.2}%{m64:/gentoo/lib64/ld-linux-x86-64.so.2}%{mx32:/gentoo/libx32/ld-linux-x32.so.2}}}} |
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EOF |
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} |
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_EOF |
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mkdir -p /cross/etc/portage/env/dev-lang |
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cat > /cross/etc/portage/env/dev-lang/python << 'EOF' |
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pre_src_prepare() { |
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sed -i 's/\[MULTIARCH=\$(.*\]/[MULTIARCH=]/' configure.ac || die |
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} |
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EOF |
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mkdir -p /cross/etc/portage/env/dev-build |
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echo 'CFLAGS=-std=c17' > /cross/etc/portage/env/dev-build/make |
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EOR |
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|
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# TODO: Upgrade to findutils 4.9 for portage, and add pax-utils for "scanelf". Both of these are required by portage's `estrip` |
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|
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# Initialize environment |
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RUN PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n sys-apps/baselayout |
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RUN echo 'PATH=/usr/bin' > /cross/etc/env.d/99host && \ |
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PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/env-update |
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RUN mkdir -p /cross/bin |
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RUN ln -sf /bin/sh /cross/bin # Required by sys-devel/gcc |
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RUN ln -sf /bin/bash /cross/bin # Required by eautoreconf |
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|
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# Build tools missing from/broken in live-bootstrap |
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# TODO: Include in live-bootstrap proper |
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RUN PORTAGE_OVERRIDE_EPREFIX=/cross MAKEOPTS=-j1 ./portage/bin/emerge -D1n dev-build/make # make in live-bootstrap has trouble with parallel builds under portage |
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RUN PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n net-misc/rsync # https://bugs.gentoo.org/963902 |
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|
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# Configure target prefix |
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RUN <<'EOR' |
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mkdir -p /gentoo/etc/portage |
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ln -sfT /var/db/repos/gentoo/profiles/default/linux/x86/23.0/i686/prefix/kernel-3.2+ /gentoo/etc/portage/make.profile |
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cat > /gentoo/etc/portage/make.conf << 'EOF' |
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FETCHCOMMAND="curl -k --retry 3 -y 60 --ftp-pasv -o \"\${DISTDIR}/\${FILE}\" -L \"\${URI}\"" |
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RESUMECOMMAND="curl -C - -k --retry 3 -y 60 --ftp-pasv -o \"\${DISTDIR}/\${FILE}\" -L \"\${URI}\"" |
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FEATURES="-news -sandbox -usersandbox -pid-sandbox -ipc-sandbox -network-sandbox -parallel-fetch" |
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BINPKG_COMPRESS=bzip2 |
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CLEAN_DELAY=0 |
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|
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PORTDIR=/var/db/repos/gentoo |
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DISTDIR=/var/cache/distfiles |
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PORTAGE_TMPDIR=/var/tmp |
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|
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CHOST=i686-cross-linux-gnu |
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ACCEPT_KEYWORDS="-~$ARCH" |
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USE=-nls |
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INSTALL_MASK=/etc/env.d/99host |
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EOF |
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mkdir -p /gentoo/etc/portage/profile |
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cat > /gentoo/etc/portage/profile/package.use << 'EOF' |
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sys-devel/gcc -sanitize -fortran |
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app-arch/gzip pic |
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EOF |
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cat > /gentoo/etc/portage/profile/package.accept_keywords << 'EOF' |
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~net-misc/curl-8.15.0 # Fix bug that prevents --ftp-pasv from working |
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EOF |
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cat > /gentoo/etc/portage/bashrc << 'EOF' |
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if [ "$CBUILD" = i686-unknown-linux-musl ]; then |
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export BUILD_CFLAGS="-I$BROOT/usr/include" |
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export BUILD_LDFLAGS="-L$BROOT/usr/lib -Wl,--disable-new-dtags,-rpath,$BROOT/usr/lib" |
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export PKG_CONFIG_LIBDIR="$EROOT/usr/lib/pkgconfig:$EROOT/usr/share/pkgconfig" |
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export PKG_CONFIG_SYSTEM_INCLUDE_PATH="$EROOT/usr/include" |
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export PKG_CONFIG_SYSTEM_LIBRARY_PATH="$EROOT/lib:$EROOT/usr/lib" |
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export CONFIG_SITE="$EROOT/etc/portage/config.site" |
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|
fi |
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|
EOF |
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cat > /gentoo/etc/portage/config.site << 'EOF' |
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ac_cv_file__dev_ptmx=yes # dev-lang/python |
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ac_cv_file__dev_ptc=no # dev-lang/python |
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gl_cv_func_strcasecmp_works=yes # sys-apps/diffutils |
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EOF |
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mkdir -p /gentoo/etc/portage/env/dev-lang |
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cat > /gentoo/etc/portage/env/dev-lang/python << '_EOF' |
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if [ "$CBUILD" = i686-unknown-linux-musl ]; then |
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pre_src_prepare() { |
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sed -i 's/\[MULTIARCH=\$(.*\]/[MULTIARCH=]/' configure.ac || die |
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|
} |
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fi |
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_EOF |
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EOR |
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|
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# Initialize prefix |
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RUN PORTAGE_OVERRIDE_EPREFIX=/gentoo USE=build ./portage/bin/emerge -D1n sys-apps/baselayout |
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RUN echo 'man:x:13:15:System user; man:/dev/null:/sbin/nologin' >> /gentoo/etc/passwd && \ |
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echo 'man:x:15:' >> /gentoo/etc/group |
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|
# TODO: The acct-user and acct-group should create the groups honestly |
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|
|
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# Build libc and adapt compiler for target prefix |
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# Usually, CC and CXX should be the CHOST compilers, to cross compile. However, they're compatible enough here. |
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# Using --nodeps because the live-bootstrap environment is guaranteed to provide enough to build glibc |
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RUN PORTAGE_OVERRIDE_EPREFIX=/cross PORTAGE_CONFIGROOT=/gentoo EPREFIX=/gentoo CBUILD=i686-unknown-linux-musl CC=i686-unknown-linux-musl-gcc CXX=i686-unknown-linux-musl-g++ BOOTSTRAP_RAP=y ./portage/bin/emerge -O1n sys-kernel/linux-headers |
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|
RUN PORTAGE_OVERRIDE_EPREFIX=/cross PORTAGE_CONFIGROOT=/gentoo EPREFIX=/gentoo CBUILD=i686-unknown-linux-musl CC=i686-unknown-linux-musl-gcc CXX=i686-unknown-linux-musl-g++ BOOTSTRAP_RAP=y ./portage/bin/emerge -O1n sys-libs/glibc |
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RUN PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n cross-i686-cross-linux-gnu/glibc # Dummy package to use proper flags in gcc |
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|
RUN PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n cross-i686-cross-linux-gnu/binutils # TODO: cross-gcc doesn't depend on the right binutils |
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RUN PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n cross-i686-cross-linux-gnu/gcc |
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|
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# Build compiler and initial tools for prefix |
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RUN PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n sys-libs/ncurses # https://bugs.gentoo.org/963660 |
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RUN PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n dev-lang/python # TODO: dev-util/re2c requires dev-lang/python |
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RUN PORTAGE_OVERRIDE_EPREFIX=/cross PORTAGE_CONFIGROOT=/gentoo EPREFIX=/gentoo CBUILD=i686-unknown-linux-musl USE=build ./portage/bin/emerge -D1n \ |
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app-alternatives/awk \ |
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app-alternatives/gzip \ |
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|
app-shells/bash \ |
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|
dev-build/make \ |
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|
sys-apps/coreutils \ |
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|
sys-apps/diffutils \ |
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|
sys-apps/grep \ |
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sys-apps/portage \ |
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|
sys-apps/sed \ |
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sys-devel/binutils \ |
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sys-devel/gcc \ |
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sys-devel/patch |
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|
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# Finalize prefix |
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RUN /gentoo/usr/bin/emerge -DUu @world |
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RUN /gentoo/usr/bin/emerge -c |
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|
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# Create a cross compiler |
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RUN /gentoo/usr/bin/emerge -Dn sys-devel/crossdev app-eselect/eselect-repository sys-apps/shadow |
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RUN ( . /gentoo/etc/profile; eselect repository create crossdev ) |
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RUN mkdir -p /gentoo/etc/portage/profile/package.use.mask |
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RUN printf 'cross-x86_64-pc-linux-gnu/%s -multilib cet\n' linux-headers glibc binutils gcc gdb > /gentoo/etc/portage/profile/package.use.mask/cross-x86_64-pc-linux-gnu.multilib |
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|
RUN ( . /gentoo/etc/profile; crossdev -A 'amd64 x86' -S -P -v x86_64-pc-linux-gnu ) |
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|
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# Configure new system |
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|
RUN ( . /gentoo/etc/profile; PORTAGE_CONFIGROOT=/gentoo/usr/x86_64-pc-linux-gnu eselect profile set --force default/linux/amd64/23.0 ) |
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|
RUN ( m=/gentoo/usr/x86_64-pc-linux-gnu/etc/portage/make.conf; \ |
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test -f "$m" && mv "$m" "$m.tmp" && mkdir "$m" && mv "$m.tmp" "$m/0100_crossdev.conf" ) |
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RUN <<'EOR' |
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cat > /gentoo/usr/x86_64-pc-linux-gnu/etc/portage/make.conf/1000_make.conf << 'EOF' |
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|
FEATURES="$FEATURES -news -sandbox -usersandbox -pid-sandbox -ipc-sandbox -network-sandbox -parallel-fetch" |
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|
PORTDIR=/var/db/repos/gentoo |
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|
DISTDIR=/var/cache/distfiles |
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|
|
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|
ACCEPT_KEYWORDS="-~$ARCH" |
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|
CONFIG_SITE=/gentoo/usr/share/config.site # Needed because --prefix for target != /gentoo/usr |
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|
EOF |
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|
cat > /gentoo/usr/x86_64-pc-linux-gnu/etc/portage/bashrc << 'EOF' |
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|
export SOURCE_DATE_EPOCH=315532800 # 1980-01-01, because 0 is too old for zip files (e.g. python wheels) |
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|
EOF |
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|
mkdir -p /gentoo/usr/x86_64-pc-linux-gnu/etc/portage/env/dev-libs |
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|
cat > /gentoo/usr/x86_64-pc-linux-gnu/etc/portage/env/dev-libs/libassuan << 'EOF' |
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|
# https://bugs.gentoo.org/962780 |
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|
export GPGRT_CONFIG="$ESYSROOT/usr/bin/$CHOST-gpgrt-config" |
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|
EOF |
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|
cat > /gentoo/usr/x86_64-pc-linux-gnu/etc/portage/env/dev-libs/libgcrypt << 'EOF' |
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|
# https://bugs.gentoo.org/963810 |
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|
export GPGRT_CONFIG="$ESYSROOT/usr/bin/$CHOST-gpgrt-config" |
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|
EOF |
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|
cat > /gentoo/usr/x86_64-pc-linux-gnu/etc/portage/env/dev-libs/libksba << 'EOF' |
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|
# https://bugs.gentoo.org/963811 |
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|
export GPGRT_CONFIG="$ESYSROOT/usr/bin/$CHOST-gpgrt-config" |
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|
EOF |
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|
EOR |
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|
|
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|
# Work around an ebuild bug |
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|
RUN ln -s /gentoo/lib/ld-linux.so.2 /lib # https://bugs.gentoo.org/962756 |
||||
|
|
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|
# Cross compile the new system |
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|
RUN ( . /gentoo/etc/profile; USE=build x86_64-pc-linux-gnu-emerge -D1n sys-apps/baselayout ) |
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|
RUN ( . /gentoo/etc/profile; x86_64-pc-linux-gnu-emerge -DUu @world ) |
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|
|
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|
# Create final rootfs |
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|
RUN ( . /gentoo/etc/profile; ROOT=/target USE=build x86_64-pc-linux-gnu-emerge -KDU1n sys-apps/baselayout ) |
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|
RUN ( . /gentoo/etc/profile; ROOT=/target x86_64-pc-linux-gnu-emerge -KDUu @world ) |
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@ -0,0 +1,13 @@ |
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|
FROM scratch |
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|
|
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|
COPY seed/stage0-posix seed/*.* / |
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|
COPY steps /steps |
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|
COPY <<EOF /steps/bootstrap.cfg |
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|
CONFIGURATOR=False |
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|
SWAP_SIZE=0 |
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|
FINAL_JOBS=8 |
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|
EOF |
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|
RUN --network=none \ |
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|
--mount=type=bind,src=./distfiles,dst=/external/distfiles,rw \ |
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|
--mount=type=tmpfs,dst=/external/repo \ |
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|
["/bootstrap-seeds/POSIX/x86/kaem-optional-seed"] |
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@ -0,0 +1,4 @@ |
|||||
|
#!/bin/sh |
||||
|
d="$(dirname "$0")" |
||||
|
|
||||
|
buildah build -f "$d/Containerfile.live-bootstrap" -t live-bootstrap |
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@ -0,0 +1,3 @@ |
|||||
|
#!/bin/sh |
||||
|
mkdir -p distfiles |
||||
|
buildah build -t live-bootstrap-gentoo --layers -v $PWD/distfiles:/var/cache/distfiles . |
||||
@ -0,0 +1,379 @@ |
|||||
|
# vim:set ft=sh: |
||||
|
|
||||
|
# Changelog: |
||||
|
# - 2025.8: |
||||
|
# - Set up a proper gentoo install using prefix, by building a bunch of tools |
||||
|
# in a temporary prefix, and then cross-compiling a final prefix. |
||||
|
# - Use crossdev to build the final system. |
||||
|
# - Both of these changes make the instructions significantly more |
||||
|
# future-proof, although there's still a lot of bugs to fix upstream, and |
||||
|
# ways to lessen the amount of compilation needed. |
||||
|
# - 2025: |
||||
|
# - Upstreamed portage patch |
||||
|
# - Cross-compile all packages in packages.build for the profile |
||||
|
# (this simplifies the steps afterwards significantly) |
||||
|
# - Pin to GCC 13 (gcc 14 isn't working...) |
||||
|
# - Future proofing by ignoring HTTPs certificates |
||||
|
# (portage verifies the checksums anyway) |
||||
|
# - Avoid using wget (need to set FETCHCOMMAND anyway...) |
||||
|
# - Future proofing by not hardcoding a python version |
||||
|
# - 2024.8: |
||||
|
# - Rewrite bootstrap to avoid using LFS |
||||
|
# - Pin the repository version |
||||
|
# - 2024: |
||||
|
# - Initial version |
||||
|
|
||||
|
# Overview of bootstrap: |
||||
|
# step 0: Build live-bootstrap as a starting point |
||||
|
# step 1: Install a temporary copy of portage to /tmp/portage |
||||
|
# step 2: Setup a prefix-guest using the live-bootstrap toolchain, build a few additional tools |
||||
|
# step 3: Set up a target prefix, build glibc, and a cross compiler targetting it |
||||
|
# step 4: Build portage and necessary utilities for the target prefix |
||||
|
# step 5: Switch to it and emerge the rest of @world |
||||
|
# step 6: Install crossdev and build the final system |
||||
|
|
||||
|
# Build live-bootstrap |
||||
|
git clone https://github.com/fosslinux/live-bootstrap |
||||
|
git -C live-bootstrap checkout 63b24502c7e5bad7db5ee1d2005db4cc5905ab74 |
||||
|
git -C live-bootstrap submodule update --init --recursive --depth=1 --progress |
||||
|
cd live-bootstrap |
||||
|
python3 -m venv env |
||||
|
env/bin/pip install -U --no-binary :all: pip |
||||
|
env/bin/pip install -v --no-binary :all: requests |
||||
|
./download-distfiles.sh |
||||
|
#sudo -s # if not root already |
||||
|
umask 022 |
||||
|
env/bin/python ./rootfs.py -c --external-sources --cores $(nproc) -m '' |
||||
|
umount target/dev/shm # double mounted? |
||||
|
umount target/dev/shm target/sys target/proc target/tmp |
||||
|
|
||||
|
# Optional: Back up the system |
||||
|
rm -r target/dev/* # allow extracting as non-root |
||||
|
env -i chroot target tar --exclude='/external' --sort=name -cf /target.tar / |
||||
|
env -i chroot target bzip2 -9v /target.tar |
||||
|
mv target/external/repo . |
||||
|
mv target/target.tar.bz2 . |
||||
|
rm -rf target/external |
||||
|
|
||||
|
# Optional: Keep distfiles in one place |
||||
|
mkdir -p target/var/cache/distfiles |
||||
|
mount --bind distfiles target/var/cache/distfiles |
||||
|
|
||||
|
# Chroot into the live-bootstrap system |
||||
|
cd target |
||||
|
mount -t proc proc proc |
||||
|
mount -t sysfs sysfs sys |
||||
|
mount -t devtmpfs devtmpfs dev |
||||
|
mount -t devpts devpts dev/pts |
||||
|
env -i TERM="$TERM" chroot . /bin/bash -l |
||||
|
|
||||
|
umask 022 |
||||
|
source /steps/env |
||||
|
cd /tmp |
||||
|
|
||||
|
# Optional: Configure additional mirrors for missing/removed distfiles |
||||
|
# This is a space-separated list of URLs, but full paths to local directories |
||||
|
# can be added as well. |
||||
|
export GENTOO_MIRRORS="/mirror http://distfiles.gentoo.org" |
||||
|
|
||||
|
mkdir -p /var/cache/distfiles; cd /var/cache/distfiles |
||||
|
curl -LO http://gitweb.gentoo.org/proj/portage.git/snapshot/portage-3.0.68.tar.bz2 |
||||
|
curl -LO http://distfiles.gentoo.org/snapshots/squashfs/gentoo-20250801.xz.sqfs |
||||
|
curl -LO https://github.com/plougher/squashfs-tools/archive/refs/tags/4.7.2/squashfs-tools-4.7.2.tar.gz |
||||
|
cd /tmp |
||||
|
# TODO: gentoo currently uses squashfs-tools-4.7, but that fails to build, upgraded to 4.7.2 |
||||
|
|
||||
|
# Build squashfs-tools to extract the ::gentoo tree |
||||
|
# TODO: Include in live-bootstrap proper |
||||
|
tar xf /var/cache/distfiles/squashfs-tools-4.7.2.tar.gz |
||||
|
cd squashfs-tools-4.7.2 |
||||
|
make -C squashfs-tools install \ |
||||
|
INSTALL_PREFIX=/usr \ |
||||
|
LZO_SUPPORT=0 LZ4_SUPPORT=0 ZSTD_SUPPORT=0 |
||||
|
cd .. |
||||
|
rm -rf squashfs-tools-4.7.2 |
||||
|
|
||||
|
# Make some additional root modifications |
||||
|
cp /usr/include/asm-generic/mman.h /usr/include/asm # needed by dev-libs/openssl |
||||
|
|
||||
|
# Unpack the ::gentoo tree |
||||
|
unsquashfs /var/cache/distfiles/gentoo-20250801.xz.sqfs |
||||
|
mkdir -p /var/db/repos |
||||
|
rm -rf /var/db/repos/gentoo |
||||
|
mv squashfs-root /var/db/repos/gentoo |
||||
|
|
||||
|
# Install temporary copy of portage |
||||
|
tar xf /var/cache/distfiles/portage-3.0.68.tar.bz2 |
||||
|
ln -sfT portage-3.0.68 portage |
||||
|
|
||||
|
# Add portage user/group |
||||
|
echo 'portage:x:250:250:portage:/var/tmp/portage:/bin/false' >> /etc/passwd |
||||
|
echo 'portage::250:portage' >> /etc/group |
||||
|
|
||||
|
# Create cross repository |
||||
|
mkdir -p /var/db/repos/cross/profiles |
||||
|
echo cross > /var/db/repos/cross/profiles/repo_name |
||||
|
mkdir -p /var/db/repos/cross/metadata |
||||
|
printf '%s\n' 'masters = gentoo' 'thin-manifests = true' \ |
||||
|
> /var/db/repos/cross/metadata/layout.conf |
||||
|
mkdir -p /var/db/repos/cross/cross-base |
||||
|
ln -sfT /var/db/repos/gentoo/sys-devel/binutils /var/db/repos/cross/cross-base/binutils |
||||
|
ln -sfT /var/db/repos/gentoo/sys-devel/gcc /var/db/repos/cross/cross-base/gcc |
||||
|
mkdir -p /var/db/repos/cross/cross-base/glibc |
||||
|
printf '%s\n' EAPI=8 SLOT=0 KEYWORDS='"*"' > /var/db/repos/cross/cross-base/glibc/glibc-0.ebuild |
||||
|
|
||||
|
# Register i686-cross-linux-gnu toolchain |
||||
|
echo cross-i686-cross-linux-gnu >> /var/db/repos/cross/profiles/categories |
||||
|
ln -sfT cross-base /var/db/repos/cross/cross-i686-cross-linux-gnu |
||||
|
|
||||
|
# Configure prefix for host tools |
||||
|
mkdir -p /cross/etc/portage/make.profile |
||||
|
cat > /cross/etc/portage/make.profile/make.defaults << 'EOF' |
||||
|
FETCHCOMMAND="curl -k --retry 3 -y 60 --ftp-pasv -o \"\${DISTDIR}/\${FILE}\" -L \"\${URI}\"" |
||||
|
RESUMECOMMAND="curl -C - -k --retry 3 -y 60 --ftp-pasv -o \"\${DISTDIR}/\${FILE}\" -L \"\${URI}\"" |
||||
|
FEATURES="-news -sandbox -usersandbox -pid-sandbox -ipc-sandbox -network-sandbox -parallel-fetch" |
||||
|
BINPKG_COMPRESS=bzip2 |
||||
|
CLEAN_DELAY=0 |
||||
|
|
||||
|
ARCH=x86 |
||||
|
ACCEPT_KEYWORDS="$ARCH" |
||||
|
CHOST=i686-unknown-linux-musl |
||||
|
IUSE_IMPLICIT="prefix prefix-guest kernel_linux elibc_musl elibc_glibc sparc m68k alpha amd64 x86" |
||||
|
USE="prefix prefix-guest kernel_linux elibc_musl x86 python_targets_python3_13" |
||||
|
|
||||
|
C_INCLUDE_PATH="$EROOT/usr/include" |
||||
|
CPLUS_INCLUDE_PATH="$EROOT/usr/include" |
||||
|
LIBRARY_PATH="$EROOT/usr/lib" |
||||
|
PKG_CONFIG_PATH="$EROOT/usr/lib/pkgconfig:$EROOT/usr/share/pkgconfig" |
||||
|
LDFLAGS="-Wl,--disable-new-dtags,-rpath,$EPREFIX/usr/lib" |
||||
|
EOF |
||||
|
cat > /cross/etc/portage/repos.conf << 'EOF' |
||||
|
[cross] |
||||
|
location = /var/db/repos/cross |
||||
|
EOF |
||||
|
cat > /cross/etc/portage/package.use << 'EOF' |
||||
|
dev-lang/perl minimal |
||||
|
dev-libs/libxml2 -python |
||||
|
sys-apps/file -seccomp |
||||
|
sys-apps/util-linux -su |
||||
|
cross-i686-cross-linux-gnu/gcc -sanitize -fortran openmp |
||||
|
EOF |
||||
|
cat > /cross/etc/portage/package.mask << 'EOF' |
||||
|
sys-devel/binutils |
||||
|
sys-devel/gcc |
||||
|
EOF |
||||
|
cat > /cross/etc/portage/make.profile/package.provided << 'EOF' |
||||
|
sys-devel/binutils-2.27 |
||||
|
sys-devel/gcc-6.2 |
||||
|
app-arch/xz-utils-0 |
||||
|
EOF |
||||
|
mkdir -p /cross/etc/portage/env/cross-i686-cross-linux-gnu |
||||
|
cat > /cross/etc/portage/env/cross-i686-cross-linux-gnu/gcc << '_EOF' |
||||
|
EXTRA_ECONF='--with-sysroot=/gentoo' |
||||
|
post_src_install() { |
||||
|
cat > "$ED/usr/lib/gcc/$CTARGET/specs" << 'EOF' |
||||
|
*link: |
||||
|
+ %{!shared:%{!static:%{!static-pie:-dynamic-linker %{m64|mx32:;:/gentoo/lib/ld-linux.so.2}%{m64:/gentoo/lib64/ld-linux-x86-64.so.2}%{mx32:/gentoo/libx32/ld-linux-x32.so.2}}}} |
||||
|
EOF |
||||
|
} |
||||
|
_EOF |
||||
|
mkdir -p /cross/etc/portage/env/dev-lang |
||||
|
cat > /cross/etc/portage/env/dev-lang/python << 'EOF' |
||||
|
pre_src_prepare() { |
||||
|
sed -i 's/\[MULTIARCH=\$(.*\]/[MULTIARCH=]/' configure.ac || die |
||||
|
} |
||||
|
EOF |
||||
|
mkdir -p /cross/etc/portage/env/dev-build |
||||
|
echo 'CFLAGS=-std=c17' > /cross/etc/portage/env/dev-build/make |
||||
|
|
||||
|
# TODO: Upgrade to findutils 4.9 for portage, and add pax-utils for "scanelf". Both of these are required by portage's `estrip` |
||||
|
|
||||
|
# Initialize environment |
||||
|
PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n sys-apps/baselayout |
||||
|
echo 'PATH=/usr/bin' > /cross/etc/env.d/99host |
||||
|
PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/env-update |
||||
|
mkdir -p /cross/bin |
||||
|
ln -sf /bin/sh /cross/bin # Required by sys-devel/gcc |
||||
|
ln -sf /bin/bash /cross/bin # Required by eautoreconf |
||||
|
|
||||
|
# Build tools missing from/broken in live-bootstrap |
||||
|
# TODO: Include in live-bootstrap proper |
||||
|
PORTAGE_OVERRIDE_EPREFIX=/cross MAKEOPTS=-j1 ./portage/bin/emerge -D1n dev-build/make # make in live-bootstrap has trouble with parallel builds under portage |
||||
|
PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n net-misc/rsync # https://bugs.gentoo.org/963902 |
||||
|
|
||||
|
# Configure target prefix |
||||
|
mkdir -p /gentoo/etc/portage |
||||
|
ln -sfT /var/db/repos/gentoo/profiles/default/linux/x86/23.0/i686/prefix/kernel-3.2+ /gentoo/etc/portage/make.profile |
||||
|
cat > /gentoo/etc/portage/make.conf << 'EOF' |
||||
|
FETCHCOMMAND="curl -k --retry 3 -y 60 --ftp-pasv -o \"\${DISTDIR}/\${FILE}\" -L \"\${URI}\"" |
||||
|
RESUMECOMMAND="curl -C - -k --retry 3 -y 60 --ftp-pasv -o \"\${DISTDIR}/\${FILE}\" -L \"\${URI}\"" |
||||
|
FEATURES="-news -sandbox -usersandbox -pid-sandbox -ipc-sandbox -network-sandbox -parallel-fetch" |
||||
|
BINPKG_COMPRESS=bzip2 |
||||
|
CLEAN_DELAY=0 |
||||
|
|
||||
|
PORTDIR=/var/db/repos/gentoo |
||||
|
DISTDIR=/var/cache/distfiles |
||||
|
PORTAGE_TMPDIR=/var/tmp |
||||
|
|
||||
|
CHOST=i686-cross-linux-gnu |
||||
|
ACCEPT_KEYWORDS="-~$ARCH" |
||||
|
USE=-nls |
||||
|
INSTALL_MASK=/etc/env.d/99host |
||||
|
EOF |
||||
|
mkdir -p /gentoo/etc/portage/profile |
||||
|
cat > /gentoo/etc/portage/profile/package.use << 'EOF' |
||||
|
sys-devel/gcc -sanitize -fortran |
||||
|
app-arch/gzip pic |
||||
|
EOF |
||||
|
cat > /gentoo/etc/portage/profile/package.accept_keywords << 'EOF' |
||||
|
~net-misc/curl-8.15.0 # Fix bug that prevents --ftp-pasv from working |
||||
|
EOF |
||||
|
cat > /gentoo/etc/portage/bashrc << 'EOF' |
||||
|
if [ "$CBUILD" = i686-unknown-linux-musl ]; then |
||||
|
export BUILD_CFLAGS="-I$BROOT/usr/include" |
||||
|
export BUILD_LDFLAGS="-L$BROOT/usr/lib -Wl,--disable-new-dtags,-rpath,$BROOT/usr/lib" |
||||
|
export PKG_CONFIG_LIBDIR="$EROOT/usr/lib/pkgconfig:$EROOT/usr/share/pkgconfig" |
||||
|
export PKG_CONFIG_SYSTEM_INCLUDE_PATH="$EROOT/usr/include" |
||||
|
export PKG_CONFIG_SYSTEM_LIBRARY_PATH="$EROOT/lib:$EROOT/usr/lib" |
||||
|
export CONFIG_SITE="$EROOT/etc/portage/config.site" |
||||
|
fi |
||||
|
EOF |
||||
|
cat > /gentoo/etc/portage/config.site << 'EOF' |
||||
|
ac_cv_file__dev_ptmx=yes # dev-lang/python |
||||
|
ac_cv_file__dev_ptc=no # dev-lang/python |
||||
|
gl_cv_func_strcasecmp_works=yes # sys-apps/diffutils |
||||
|
EOF |
||||
|
mkdir -p /gentoo/etc/portage/env/dev-lang |
||||
|
cat > /gentoo/etc/portage/env/dev-lang/python << '_EOF' |
||||
|
if [ "$CBUILD" = i686-unknown-linux-musl ]; then |
||||
|
pre_src_prepare() { |
||||
|
sed -i 's/\[MULTIARCH=\$(.*\]/[MULTIARCH=]/' configure.ac || die |
||||
|
} |
||||
|
fi |
||||
|
_EOF |
||||
|
|
||||
|
# Initialize prefix |
||||
|
PORTAGE_OVERRIDE_EPREFIX=/gentoo USE=build ./portage/bin/emerge -D1n sys-apps/baselayout |
||||
|
echo 'man:x:13:15:System user; man:/dev/null:/sbin/nologin' >> /gentoo/etc/passwd |
||||
|
echo 'man:x:15:' >> /gentoo/etc/group |
||||
|
# TODO: The acct-user and acct-group should create the groups honestly |
||||
|
|
||||
|
# Build libc and adapt compiler for target prefix |
||||
|
# Usually, CC and CXX should be the CHOST compilers, to cross compile. However, they're compatible enough here. |
||||
|
# Using --nodeps because the live-bootstrap environment is guaranteed to provide enough to build glibc |
||||
|
PORTAGE_OVERRIDE_EPREFIX=/cross PORTAGE_CONFIGROOT=/gentoo EPREFIX=/gentoo CBUILD=i686-unknown-linux-musl CC=i686-unknown-linux-musl-gcc CXX=i686-unknown-linux-musl-g++ BOOTSTRAP_RAP=y ./portage/bin/emerge -O1n sys-kernel/linux-headers |
||||
|
PORTAGE_OVERRIDE_EPREFIX=/cross PORTAGE_CONFIGROOT=/gentoo EPREFIX=/gentoo CBUILD=i686-unknown-linux-musl CC=i686-unknown-linux-musl-gcc CXX=i686-unknown-linux-musl-g++ BOOTSTRAP_RAP=y ./portage/bin/emerge -O1n sys-libs/glibc |
||||
|
PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n cross-i686-cross-linux-gnu/glibc # Dummy package to use proper flags in gcc |
||||
|
PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n cross-i686-cross-linux-gnu/binutils # TODO: cross-gcc doesn't depend on the right binutils |
||||
|
PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n cross-i686-cross-linux-gnu/gcc |
||||
|
|
||||
|
# Build compiler and initial tools for prefix |
||||
|
PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n sys-libs/ncurses # https://bugs.gentoo.org/963660 |
||||
|
PORTAGE_OVERRIDE_EPREFIX=/cross ./portage/bin/emerge -D1n dev-lang/python # TODO: dev-util/re2c requires dev-lang/python |
||||
|
PORTAGE_OVERRIDE_EPREFIX=/cross PORTAGE_CONFIGROOT=/gentoo EPREFIX=/gentoo CBUILD=i686-unknown-linux-musl USE=build ./portage/bin/emerge -D1n \ |
||||
|
app-alternatives/awk \ |
||||
|
app-alternatives/gzip \ |
||||
|
app-shells/bash \ |
||||
|
dev-build/make \ |
||||
|
sys-apps/coreutils \ |
||||
|
sys-apps/diffutils \ |
||||
|
sys-apps/grep \ |
||||
|
sys-apps/portage \ |
||||
|
sys-apps/sed \ |
||||
|
sys-devel/binutils \ |
||||
|
sys-devel/gcc \ |
||||
|
sys-devel/patch |
||||
|
|
||||
|
# Finalize prefix |
||||
|
/gentoo/usr/bin/emerge -DUu @world |
||||
|
/gentoo/usr/bin/emerge -c |
||||
|
|
||||
|
# Optional: Back up |
||||
|
tar --sort=name -cf /gentoo.tar /gentoo |
||||
|
bzip2 -9v /gentoo.tar |
||||
|
|
||||
|
# Create a cross compiler |
||||
|
/gentoo/usr/bin/emerge -Dn sys-devel/crossdev app-eselect/eselect-repository sys-apps/shadow |
||||
|
( . /gentoo/etc/profile; eselect repository create crossdev ) |
||||
|
mkdir -p /gentoo/etc/portage/profile/package.use.mask |
||||
|
printf 'cross-x86_64-pc-linux-gnu/%s -multilib cet\n' linux-headers glibc binutils gcc gdb > /gentoo/etc/portage/profile/package.use.mask/cross-x86_64-pc-linux-gnu.multilib |
||||
|
( . /gentoo/etc/profile; crossdev -A 'amd64 x86' -S -P -v x86_64-pc-linux-gnu ) |
||||
|
|
||||
|
# Configure new system |
||||
|
( . /gentoo/etc/profile; PORTAGE_CONFIGROOT=/gentoo/usr/x86_64-pc-linux-gnu eselect profile set --force default/linux/amd64/23.0 ) |
||||
|
( m=/gentoo/usr/x86_64-pc-linux-gnu/etc/portage/make.conf; \ |
||||
|
test -f "$m" && mv "$m" "$m.tmp" && mkdir "$m" && mv "$m.tmp" "$m/0100_crossdev.conf" ) |
||||
|
cat > /gentoo/usr/x86_64-pc-linux-gnu/etc/portage/make.conf/1000_make.conf << 'EOF' |
||||
|
FEATURES="$FEATURES -news -sandbox -usersandbox -pid-sandbox -ipc-sandbox -network-sandbox -parallel-fetch" |
||||
|
PORTDIR=/var/db/repos/gentoo |
||||
|
DISTDIR=/var/cache/distfiles |
||||
|
|
||||
|
ACCEPT_KEYWORDS="-~$ARCH" |
||||
|
CONFIG_SITE=/gentoo/usr/share/config.site # Needed because --prefix for target != /gentoo/usr |
||||
|
EOF |
||||
|
cat > /gentoo/usr/x86_64-pc-linux-gnu/etc/portage/bashrc << 'EOF' |
||||
|
export SOURCE_DATE_EPOCH=315532800 # 1980-01-01, because 0 is too old for zip files (e.g. python wheels) |
||||
|
EOF |
||||
|
mkdir -p /gentoo/usr/x86_64-pc-linux-gnu/etc/portage/env/dev-libs |
||||
|
cat > /gentoo/usr/x86_64-pc-linux-gnu/etc/portage/env/dev-libs/libassuan << 'EOF' |
||||
|
# https://bugs.gentoo.org/962780 |
||||
|
export GPGRT_CONFIG="$ESYSROOT/usr/bin/$CHOST-gpgrt-config" |
||||
|
EOF |
||||
|
cat > /gentoo/usr/x86_64-pc-linux-gnu/etc/portage/env/dev-libs/libgcrypt << 'EOF' |
||||
|
# https://bugs.gentoo.org/963810 |
||||
|
export GPGRT_CONFIG="$ESYSROOT/usr/bin/$CHOST-gpgrt-config" |
||||
|
EOF |
||||
|
cat > /gentoo/usr/x86_64-pc-linux-gnu/etc/portage/env/dev-libs/libksba << 'EOF' |
||||
|
# https://bugs.gentoo.org/963811 |
||||
|
export GPGRT_CONFIG="$ESYSROOT/usr/bin/$CHOST-gpgrt-config" |
||||
|
EOF |
||||
|
|
||||
|
# Work around an ebuild bug |
||||
|
ln -s /gentoo/lib/ld-linux.so.2 /lib # https://bugs.gentoo.org/962756 |
||||
|
|
||||
|
# Cross compile the new system |
||||
|
( . /gentoo/etc/profile; USE=build x86_64-pc-linux-gnu-emerge -D1n sys-apps/baselayout ) |
||||
|
( . /gentoo/etc/profile; x86_64-pc-linux-gnu-emerge -DUu @world ) |
||||
|
|
||||
|
# Create final rootfs |
||||
|
( . /gentoo/etc/profile; ROOT=/target USE=build x86_64-pc-linux-gnu-emerge -KDU1n sys-apps/baselayout ) |
||||
|
( . /gentoo/etc/profile; ROOT=/target x86_64-pc-linux-gnu-emerge -KDUu @world ) |
||||
|
|
||||
|
# Set up final system |
||||
|
mkdir -p /target/etc/portage |
||||
|
ln -sfT ../../var/db/repos/gentoo/profiles/default/linux/amd64/23.0 /target/etc/portage/make.profile |
||||
|
echo 'nameserver 1.1.1.1' > /target/etc/resolv.conf |
||||
|
echo 'C.UTF8 UTF-8' > /target/etc/locale.gen |
||||
|
|
||||
|
# This is the point where you have to move from the x86 system to an x86_64 system. |
||||
|
# Make sure that you are running a x86_64 kernel before chrooting, or booting it. |
||||
|
exit |
||||
|
umount dev/pts dev sys proc |
||||
|
umount var/cache/distfiles |
||||
|
|
||||
|
# Optional: Back up the system |
||||
|
env -i chroot target tar --sort=name -cf /target-gentoo.tar / |
||||
|
env -i chroot target bzip2 -9v /target-gentoo.tar |
||||
|
mv target/target-gentoo.tar.bz2 .. |
||||
|
|
||||
|
# Copy ::gentoo repo and distfiles |
||||
|
mkdir -p target/var/db/repos |
||||
|
rsync -a var/db/repos/gentoo/ target/var/db/repos/gentoo |
||||
|
rsync -a var/cache/distfiles/ target/var/cache/distfiles |
||||
|
|
||||
|
# Enter the final, x86_64 system |
||||
|
cd target |
||||
|
mount -t proc proc proc |
||||
|
mount -t sysfs sysfs sys |
||||
|
mount -t devtmpfs devtmpfs dev |
||||
|
mount -t devpts devpts dev/pts |
||||
|
env -i TERM="$TERM" chroot . /bin/bash -l |
||||
|
|
||||
|
umask 022 |
||||
|
|
||||
|
# Initialize system and break dependency cycles |
||||
|
ldconfig |
||||
|
USE='-nls' emerge -1n sys-devel/gettext |
||||
|
|
||||
|
# Rebuild everything |
||||
|
emerge -e @world |
||||
Loading…
Reference in new issue