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|
#!/bin/bash
#
# Assumptions:
# 1) User has partitioned, formatted, and mounted partitions on /mnt
# 2) Network is functional
# 3) Arguments passed to the script are valid pacman targets
# 4) A valid mirror appears in /etc/pacman.d/mirrorlist
#
shopt -s extglob
m4_include(common)
hostcache=0
copykeyring=1
copymirrorlist=1
pacmode=-Sy
setup=chroot_setup
unshare="$root_unshare"
usage() {
cat <<EOF
usage: ${0##*/} [options] root [packages...]
Options:
-C <config> Use an alternate config file for pacman
-c Use the package cache on the host, rather than the target
-G Avoid copying the host's pacman keyring to the target
-i Prompt for package confirmation when needed (run interactively)
-M Avoid copying the host's mirrorlist to the target
-N Run in unshare mode as a regular user
-U Use pacman -U to install packages
-h Print this help message
pacstrap installs packages to the specified new root directory. If no packages
are given, pacstrap defaults to the "base" group.
EOF
}
if [[ -z $1 || $1 = @(-h|--help) ]]; then
usage
exit $(( $# ? 0 : 1 ))
fi
while getopts ':C:cdGiMNU' flag; do
case $flag in
C)
pacman_config=$OPTARG
;;
d)
# retired flag. does nothing.
;;
c)
hostcache=1
;;
i)
interactive=1
;;
G)
copykeyring=0
;;
M)
copymirrorlist=0
;;
N)
setup=unshare_setup
unshare="$user_unshare"
;;
U)
pacmode=-U
;;
:)
die '%s: option requires an argument -- '\''%s'\' "${0##*/}" "$OPTARG"
;;
?)
die '%s: invalid option -- '\''%s'\' "${0##*/}" "$OPTARG"
;;
esac
done
shift $(( OPTIND - 1 ))
(( $# )) || die "No root directory specified"
newroot=$1; shift
pacman_args=("${@:-base}")
if (( ! hostcache )); then
pacman_args+=(--cachedir="$newroot/var/cache/pacman/pkg")
fi
if (( ! interactive )); then
pacman_args+=(--noconfirm)
fi
if [[ $pacman_config ]]; then
pacman_args+=(--config="$pacman_config")
fi
[[ -d $newroot ]] || die "%s is not a directory" "$newroot"
pacstrap() {
(( EUID == 0 )) || die 'This script must be run with root privileges'
# create obligatory directories
msg 'Creating install root at %s' "$newroot"
mkdir -m 0755 -p "$newroot"/var/{cache/pacman/pkg,lib/pacman,log} "$newroot"/{dev,run,etc/pacman.d}
mkdir -m 1777 -p "$newroot"/tmp
mkdir -m 0555 -p "$newroot"/{sys,proc}
# mount API filesystems
$setup "$newroot" || die "failed to setup chroot %s" "$newroot"
if (( copykeyring )); then
# if there's a keyring on the host, copy it into the new root, unless it exists already
if [[ -d /etc/pacman.d/gnupg && ! -d $newroot/etc/pacman.d/gnupg ]]; then
cp -a --no-preserve=ownership /etc/pacman.d/gnupg "$newroot/etc/pacman.d/"
fi
fi
msg 'Installing packages to %s' "$newroot"
if ! pacman -r "$newroot" $pacmode "${pacman_args[@]}"; then
die 'Failed to install packages to new root'
fi
if (( copymirrorlist )); then
# install the host's mirrorlist onto the new root
cp -a /etc/pacman.d/mirrorlist "$newroot/etc/pacman.d/"
fi
}
$unshare bash -c "$(declare_all); pacstrap"
# vim: et ts=2 sw=2 ft=sh:
|
