67c4b0fd24
chroot(1) will default to ${SHELL:-/bin/sh} which might not work, given
SHELL being /bin/zsh instead. Immediately default to /bin/sh, which will
exist in any sane chroot.
32 lines
641 B
Bash
32 lines
641 B
Bash
#!/bin/bash
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shopt -s extglob
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m4_include(common)
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usage() {
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cat <<EOF
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usage: ${0##*/} chroot-dir
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EOF
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}
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if [[ -z $1 || $1 = @(-h|--help) ]]; then
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usage
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exit $(( $# ? 0 : 1 ))
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fi
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(( EUID == 0 )) || die 'This script must be run with root privileges'
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chrootdir=$1
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[[ -d $chrootdir ]] || die "Can't create chroot on non-directory %s" "$1"
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trap '{ api_fs_umount "$chrootdir"; umount "$chrootdir/etc/resolv.conf"; } 2>/dev/null' EXIT
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api_fs_mount "$chrootdir" || die "failed to setup API filesystems in chroot %s" "$1"
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mount -B /etc/resolv.conf "$chrootdir/etc/resolv.conf"
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chroot "${@:-/bin/sh}"
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umount "$chrootdir/etc/resolv.conf"
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