My configuration and packages for Slackware
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#!/bin/sh
set -eu
if [ "$(id -u)" != 0 ]; then
echo "This script needs root permissions!" 1>&2
exit 1
fi
if [ "$#" -lt 1 ]; then
echo "Usage: $0 [-a arch] [-m mirror] <chroot>" 1>&2
exit 1
fi
arch="$(uname -m)"
mirror='https://mirrors.slackware.com/slackware/slackware64-current'
# Minimal amount of packages required to run installpkg, removepkg, upgradepkg, explodepkg and makepkg
# All of these exist in the 'a' package set
packages_pkgtools='
aaa_base
aaa_elflibs
bash
coreutils
etc
findutils
glibc-solibs
grep
pkgtools
sed
tar
util-linux
which
xz
'
# Minimal amount of packages required to run slackpkg without the dialog interface
# Supporting https, gpg, and upgrade-all.
# These exist over the 'a', 'ap', 'n' and 'l' package sets
# ca-certificates needs to be installed after openssl for the doinst.sh to run correctly
packages_extra='
bzip2
diffutils
gawk
gnupg
gzip
libpsl
libunistring
pcre2
slackpkg
wget
openssl
ca-certificates
'
# Parse arguments
while getopts "a:m:" opt; do
case "$opt" in
a) arch="$OPTARG" ;;
m)
if [ -d "$OPTARG" ]; then
mirror="$(realpath "$OPTARG")"
else
mirror="$OPTARG"
fi
;;
esac
done
shift $(expr $OPTIND - 1)
[ "$#" -ge 1 ] && [ "$1" = "--" ] && shift
# Build final variables
case "$arch" in
x86_64)
pkgmain='slackware64'
;;
*)
pkgmain='slackware'
;;
esac
initrd='isolinux/initrd.img'
checksums='CHECKSUMS.md5'
chroot="$(realpath "$1")"
# Create working directory
temp="$(mktemp -d -t "$(basename "$0")".XXXXXX)"
cleanup() {
if mountpoint -q "$temp/mnt/pkg"; then
umount "$temp/mnt/pkg"
rmdir "$temp/mnt/pkg"
fi
mountpoint -q "$temp/mnt" && umount "$temp/mnt"
rm -rf "$temp"
}
trap 'cleanup' EXIT
cd "$temp"
# Function to download (or copy) a file
get() {
if [ -d "$mirror" ]; then
cp "$mirror/$1" "$2"
else
wget "$mirror/$1" -O "$2"
fi
}
# Function to verify files based on the checksums file
check() {
printf '%s' "$(tail +13 CHECKSUMS.md5 | grep "^[0-9a-f]* ./$1$" | cut -d ' ' -f 1) $2" | md5sum -c --quiet -
}
# Get the full path to a package
package() {
tail +13 CHECKSUMS.md5 | grep "^[0-9a-f]* ./$pkgmain/[^/]*/$1-[^-]*-[^-]*-[^-]*\.t.z$" | cut -d ' ' -f 3- | cut -c 3-
}
# Download checksums
get "$checksums" CHECKSUMS.md5
# Download installer initrd.img
get "$initrd" initrd.img
check "$initrd" initrd.img
# Unpack and prepare the installer
xz -cd initrd.img | cpio -id
rm -f initrd.img
mkdir -p pkg "$chroot"
mount --bind "$chroot" mnt
mkdir -p mnt/pkg
mount --bind pkg mnt/pkg
# Download packages
for pkg in $packages_pkgtools $packages_extra; do
path="$(package "$pkg")"
name="$(basename "$path")"
get "$path" "pkg/$name"
check "$path" "pkg/$name"
done
for pkg in $packages_pkgtools; do echo "$(basename "$(package "$pkg")")" >> pkg/__; done
for pkg in $packages_extra; do echo "$(basename "$(package "$pkg")")" >> pkg/_; done
# Bootstrap pkgtools and its dependencies
env -i chroot . sh -l -c 'while read pkg; do /sbin/installpkg --root /mnt --terse "/pkg/$pkg"; done < /pkg/__'
# Install slackpkg and its dependencies
env -i chroot mnt sh -l -c 'while read pkg; do /sbin/installpkg --terse "/pkg/$pkg"; done < /pkg/_'