6 changed files with 56 additions and 341 deletions
@ -1,116 +0,0 @@ |
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This is done in a chroot, from a 10.0 chapter 7 system. To do this on a live |
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system, you'll need a kernel, initscripts, and some way to connect to the |
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internet, such as iproute+dhcpcd. |
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|
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Make sure you bind-mount your host's /etc/resolv.conf to the chroot, such as: |
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touch $LFS/etc/resolv.conf |
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mount -v --bind /etc/resolv.conf $LFS/etc/resolv.conf |
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This will allow programs to resolve DNS names, which is necessary to download things. |
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|
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Also mount /dev/shm, in addition to the mounts in chapter 7.3: |
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mount -t tmpfs tmpfs $LFS/dev/shm |
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|
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Run the following chapters (avoid tests and docs): |
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- 8.9. Zlib-1.2.11 |
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- 8.10. Bzip2-1.0.8 |
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- 8.34. Bash-5.0 |
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- 8.47. Libffi-3.3 |
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- 8.48. OpenSSL-1.1.1g |
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- 8.49. Python-3.8.5 (!--with-system-expat --without-ensurepip) |
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|
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Symlink python3: |
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ln -sf python3 /usr/bin/python |
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|
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Install ca-certificates: |
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make |
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mkdir -p /usr/share/ca-certificates |
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make install |
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( cd /usr/share/ca-certificates |
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find . -name '*.crt' | LC_ALL=C sort | cut -b3- |
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) > /etc/ca-certificates.conf |
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mkdir -p /etc/ssl/certs |
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update-ca-certificates |
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|
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Install wget: |
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./configure --prefix=/usr --sysconfdir=/etc --with-ssl=openssl --with-libssl-prefix=/usr |
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make |
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make install |
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|
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Install portage (https://wiki.gentoo.org/wiki/Portage#Tarball): |
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python setup.py install |
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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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Install repository (https://bouncer.gentoo.org/fetch/root/all/snapshots/, grab gentoo-*.tar.xz): |
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rm -rf /var/db/repos |
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mkdir -p /var/db/repos |
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mv gentoo-*/ /var/db/repos/gentoo |
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|
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Configure portage: |
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mkdir -p /etc/portage |
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ln -sf ../../var/db/repos/gentoo/profiles/default/linux/amd64/17.1/ /etc/portage/make.profile |
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|
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emerge -O1 sys-apps/baselayout |
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. /etc/profile |
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cat /var/lib/gentoo/news/news-gentoo.unread >> /var/lib/gentoo/news/news-gentoo.read |
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rm /var/lib/gentoo/news/news-gentoo.unread |
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touch /var/lib/gentoo/news/news-gentoo.unread |
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dispatch-conf |
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|
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Bootstrap multilib compiler: |
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emerge -O1 sys-apps/gentoo-functions sys-devel/binutils-config sys-devel/gcc-config app-portage/elt-patches sys-devel/binutils dev-libs/gmp dev-libs/mpfr dev-libs/mpc |
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|
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emerge -Of sys-devel/gcc |
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tar xf /var/cache/distfiles/gcc-*.tar.* && cd gcc-*/ && mkdir build && cd build |
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mkdir -p /tmp/gcc/include |
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touch /tmp/gcc/include/limits.h |
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../configure --prefix=/usr --with-local-prefix=/tmp/gcc --with-newlib --without-headers --disable-shared --disable-threads --disable-bootstrap --enable-multilib --enable-languages=c,c++ |
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make all-gcc all-target-libgcc |
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make install-gcc install-target-libgcc |
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rm -rf /tmp/gcc |
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cd ../.. && rm -rf gcc-*/ |
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|
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Remove use of gcc-multilib-bootstrap, since that defeats the point of building |
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everything from source, and we don't need it with this hack: |
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cd /var/db/repos/gentoo/sys-libs/glibc |
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cp -u glibc-2.31-r6.ebuild{,.orig} |
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sed -e '/gcc-multilib-bootstrap/d' glibc-2.31-r6.ebuild.orig > glibc-2.31-r6.ebuild |
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ebuild glibc-2.31-r6.ebuild manifest |
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PYTHON_COMPAT_OVERRIDE=python3 emerge -O1 sys-libs/glibc |
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|
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...in case of downgrade, reinstall any LFS programs that broke (using the |
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/tools toolchain?) until portage works again, and reinstall glibc, run |
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ldconfig and fix all warnings. |
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Alternatively, build LFS with an older glibc or unmask the same glibc version |
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that LFS has... |
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|
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Clean up glibc modifications: |
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cd /var/db/repos/gentoo/sys-libs/glibc |
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mv glibc-2.31-r6.ebuild.orig glibc-2.31-r6.ebuild |
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ebuild glibc-2.31-r6.ebuild manifest |
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|
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Not sure if this is necessary if not downgrading, but for good measure: |
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tar xf /var/cache/distfiles/gcc-*.tar.* && cd gcc-*/ && mkdir build && cd build |
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../libstdc++-v3/configure --prefix=/usr --enable-multilib |
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make |
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make install |
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cd ../.. && rm -rf gcc-*/ |
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|
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emerge -O1 sys-devel/gcc |
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PYTHON_COMPAT_OVERRIDE=python3 emerge -O1 sys-libs/glibc # might be necessary to merge _after_ pax-utils? |
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|
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Bootstrap rest of system: |
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emerge -O1 sys-libs/libseccomp app-misc/pax-utils # required by at least ncurses and sandbox |
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emerge -O1 sys-apps/sandbox |
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USE=-acl emerge -O1 sys-devel/gettext # circular dep, bundles libxml2, abusing this fact... |
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USE=-acl emerge -O1 net-misc/rsync # required by linux-headers |
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emerge -O1 dev-util/pkgconf # required by pax-utils |
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cd /var/db/repos/gentoo/scripts |
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./bootstrap.sh |
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|
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USE=-pam emerge -O1 sys-libs/libcap # circular dep |
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USE='-acl -xattr -pam' emerge -O1 sys-apps/shadow # required by acct-group |
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emerge -abe @system |
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|
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Unpollute the system by installing it somewhere else: |
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ROOT=/final emerge -K @system |
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@ -1,182 +0,0 @@ |
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Based on portage-3.0.8 and gentoo-20201029 |
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|
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The specifics of this document (software versions and whatnot) are subject to |
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change as gentoo evolves, but I hope the big lines of it won't change too |
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much. |
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|
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This guide starts off with a system built from build_cross.sh, built for |
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x86_64 with i686 multilib. |
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It might be possible to adapt both that script, and this guide for other |
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architectures, but this guide won't go into detail. |
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|
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You should be running a system with a x86_64 kernel (with i686 support). |
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Install the required sources (outlined in gentoo.wget-list) into /sources. |
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|
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To enter the bootstrap system as a chroot, use the following commands to set |
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up the filesystems and entering: |
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mkdir -p proc sys dev tmp |
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mount -t proc proc proc |
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mount -t sysfs sysfs sys |
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mount -t devtmpfs devtmpfs dev |
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mount -t devpts devpts dev/pts |
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mount -t tmpfs tmpfs dev/shm |
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mkdir -p etc |
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touch etc/resolv.conf |
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mount --bind /etc/resolv.conf etc/resolv.conf |
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./bootstrap/bin/chroot . /bootstrap/bin/env -i PATH=/bin:/sbin:/usr/bin:/usr/sbin:/bootstrap/bin:/bootstrap/sbin HOME=/root /bootstrap/bin/sh -l |
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|
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To install all the prerequisite tools, place the sources (listed in |
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gentoo.wget-list) under /sources, then run the gentoo_tools.sh script. |
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|
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Install ebuild repository: |
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tar xf gentoo-*.tar.xz |
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mkdir -p /var/db/repos/ |
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mv gentoo-*/ /var/db/repos/gentoo |
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|
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Configure portage: |
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echo "root:x:0:0:root:/root:/bin/bash" > /etc/passwd |
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echo "root:x:0:root" > /etc/group |
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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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mkdir -p /tmp /root |
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chown root.root /tmp /root |
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chmod 1777 /tmp |
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chmod 0700 /root |
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ln -sf ../../var/db/repos/gentoo/profiles/default/linux/amd64/17.1/ /etc/portage/make.profile |
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cat > /etc/portage/make.conf << 'EOF' |
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FEATURES=-pid-sandbox |
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ROOTPATH=/bootstrap/bin:/bootstrap/sbin |
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EOF |
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|
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Install some prerequisites: |
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emerge -O1 sys-apps/gentoo-functions # Used by elt-patches and a ton of other things |
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emerge -O1 app-portage/elt-patches # required by elibtoolize(libtool.eclass), used to install any library |
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|
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TODO: Doing this is *BAAAAD*, since we're linking the compiler and libraries |
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with a potentially incompatible version of glibc in /tools, and upgrading it |
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afterwards. Glibc should always be installed first into a new prefix! |
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I just can't be assed to discuss the manual upgrade of binutils+gcc and their |
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dependency tools. |
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|
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TODO: Consider installing sys-devel/gnuconfig for the config.sub and |
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config.guess scripts. |
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|
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Bootstrap GCC: |
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# Install linker at final location, |
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# so programs built with the new compiler can run... |
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mkdir -p /lib64 /lib |
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ln -sf /bootstrap/lib/ld-linux-x86-64.so.2 /lib64/ld-linux-x86-64.so.2 |
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ln -sf /bootstrap/lib32/ld-linux.so.2 /lib/ld-linux.so.2 |
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# Target compiler expects target limits.h to be available in target prefix... |
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mkdir -p /usr/include |
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ln -sf /bootstrap/include/limits.h /usr/include/limits.h |
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# GCC errors out at the first incompatible startfile in LIBRARY_PATH, |
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# so multilib paths need to be fixed to match the final compiler... |
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mkdir -p /usr/lib64 /usr/lib |
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ln -sf /bootstrap/lib/crti.o /bootstrap/lib/crtn.o /bootstrap/lib/Scrt1.o /usr/lib64/ |
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ln -sf /bootstrap/lib32/crti.o /bootstrap/lib32/crtn.o /bootstrap/lib32/Scrt1.o /usr/lib/ |
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# Reconfigure GCC to match the config of the final compiler as much as possible. |
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cat > /etc/portage/gcc.specs << 'EOF' |
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*multilib: |
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. !m64 !m32;64:../lib64 m64 !m32;32:../lib !m64 m32; |
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|
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*startfile_prefix_spec: |
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/usr/lib/ |
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|
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*link: |
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+ %{!shared:%{!static:-dynamic-linker %{m32:/lib/ld-linux.so.2;:/lib64/ld-linux-x86-64.so.2}}} |
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|
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*cpp: |
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+ -isystem /usr/include |
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EOF |
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cat > /etc/portage/bashrc << 'EOF' |
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export C_INCLUDE_PATH=/usr/include:/bootstrap/include |
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export CPLUS_INCLUDE_PATH=/usr/include:/bootstrap/include |
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export LIBRARY_PATH=/usr/lib64:/usr/lib:/bootstrap/lib:/bootstrap/lib32 |
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export LD_LIBRARY_PATH=/usr/lib64:/usr/lib:/bootstrap/lib:/bootstrap/lib32 |
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export CC='gcc -specs=/etc/portage/gcc.specs' |
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export CXX='g++ -specs=/etc/portage/gcc.specs' |
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EOF |
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emerge -O1 sys-libs/zlib dev-libs/gmp dev-libs/mpfr dev-libs/mpc |
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emerge -O1 sys-devel/binutils-config sys-devel/binutils |
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emerge -O1 sys-devel/gcc-config sys-devel/gcc |
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/usr/bin/gcc-config 1 # Not automatic unlike binutils-config |
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|
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Make portage forget about everything it's just installed, so it's all rebuilt |
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first thing when running bootstrap.sh/emerge later: |
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rm -rf /var/db/pkg |
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|
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Install initial glibc: |
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CC=gcc emerge -O1 sys-kernel/linux-headers |
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mkdir -p /usr/bin/ |
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ln -sf /bootstrap/bin/python3 /usr/bin/python3tmp |
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PYTHON_COMPAT_OVERRIDE=python3tmp emerge -O1 sys-libs/glibc |
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rm -f /usr/bin/python3tmp |
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|
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This compiler and dynamic linker will now pick up everything correctly under |
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/usr instead of /bootstrap: |
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rm -f /etc/portage/bashrc /etc/portage/gcc.specs |
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|
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Build the remainder of bootstrap utilities: |
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cd /var/db/repos/gentoo/scripts |
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rm -f /etc/profile.env |
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mkdir -p /var/run |
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USE=-nls ./bootstrap.sh |
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|
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You'll get tons of LD_PRELOAD libsandbox.so errors from programs still linked |
|||
against /bootstrap. This is fine to ignore, and will gradually disappear as |
|||
programs are rebuilt. |
|||
|
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It'd be nice to remove the bootstrap tools now, but among wget/openssl, gawk, |
|||
gzip, grep, and other tools, they're still required for some reason. |
|||
|
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From this point onward, you're pretty much on your own to beat portage into |
|||
performing an `emerge -e @system` and fixing any unspecified dependencies you |
|||
encounter along the way. This can be done in a whole number of ways, and will |
|||
differ on any given day, since this is painfully unsupported by gentoo devs. |
|||
Because the order in which you install everything can differ wildly, and |
|||
consequently affect the output of your build, it is advised to do a second |
|||
`emerge -e @system` afterwards, for sanity. Below I detail my most recent |
|||
procedure, which, I can't stress enough, may or may not work at the time |
|||
you're reading this. |
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|
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Fix circular dependencies: |
|||
USE=-filecaps emerge -O1 sys-libs/pam |
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USE='-acl -xattr' emerge -O1 sys-apps/shadow # required by acct-group/acct-user |
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|
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Verify there's no circular deps left, for sanity: |
|||
emerge -fe @system |
|||
|
|||
Build everything: |
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emerge -be @system |
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|
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Clean up bootstrap tools/configs: |
|||
rm -rf /bootstrap /sources |
|||
rm -f /etc/portage/make.conf |
|||
|
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Reinitialize environment: |
|||
env-update |
|||
exec bash -l |
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|
|||
Consider rebuilding everything again without /bootstrap, as surely a lot |
|||
errors popped up during the first emerge -be @system, can't be sure enough. |
|||
|
|||
To install everything into a clean root: |
|||
ROOT=/final emerge -K @system |
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|
|||
Prepare files for catalyst: |
|||
mkdir -p /var/tmp/catalyst/snapshots |
|||
wget -O gentoo-latest.tar.xz http://distfiles.gentoo.org/snapshots/gentoo-latest.tar.xz |
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mkdir -p /var/tmp/catalyst/builds/default |
|||
cd /var/tmp/catalyst/builds/default |
|||
tar -C /final -cf stage3-amd64-latest.tar . |
|||
xz -9v stage3-amd64-latest.tar |
|||
rm -rf /final |
|||
wget -O stage1.spec "https://gitweb.gentoo.org/proj/releng.git/plain/releases/specs/amd64/stage1.spec" |
|||
wget -O stage2.spec "https://gitweb.gentoo.org/proj/releng.git/plain/releases/specs/amd64/stage2.spec" |
|||
wget -O stage3.spec "https://gitweb.gentoo.org/proj/releng.git/plain/releases/specs/amd64/stage3.spec" |
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sed -i -e 's/@TIMESTAMP@/latest/' -e '/^portage_confdir: /d' *.spec |
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|
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Build the stage3: |
|||
emerge catalyst |
|||
catalyst -f stage1.spec |
|||
Loading…
Reference in new issue