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kiss-chroot: Mount /dev/shm, /dev/pts, /tmp and /run

This commit is contained in:
Dylan Araps 2021-06-29 13:12:30 +00:00
parent ea18c88f74
commit e9a2e3472b
1 changed files with 20 additions and 2 deletions
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22
contrib/kiss-chroot
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@ -11,8 +11,12 @@ die() {
}
clean() {
log Unmounting /dev, /proc and /sys from chroot; {
log Unmounting host filesystems; {
umount "$1/sys/firmware/efi/efivars" 2>/dev/null ||:
umount "$1/tmp" ||:
umount "$1/run" ||:
umount "$1/dev/pts" ||:
umount "$1/dev/shm" ||:
umount "$1/dev" ||:
umount "$1/proc" ||:
umount "$1/sys" ||:
@ -35,20 +39,34 @@ mounted() {
[ "$target" = "$1" ] && return 0
done < /proc/mounts
printf 'mounting %s\n' "$1" >&2
return 1
}
set -- "${1%"${1##*[!/]}"}"
[ -z "$1" ] && die Need a path to the chroot
[ -d "$1" ] || die Given path does not exist
[ "$(id -u)" = 0 ] || die Script needs to be run as root
trap 'clean "$1"' EXIT INT
log Mounting /dev, /proc and /sys from host; {
log Mounting host filesystems; {
mounted "$1/dev" || mount -o bind /dev "$1/dev" ||:
mounted "$1/proc" || mount -t proc proc "$1/proc" ||:
mounted "$1/sys" || mount -t sysfs sys "$1/sys" ||:
mounted "$1/dev/shm" ||
mount -t tmpfs shmfs "$1/dev/shm" ||:
mounted "$1/dev/pts" ||
mount -o bind /dev/pts "$1/dev/pts" ||:
mounted "$1/tmp" ||
mount -o mode=1777,nosuid,nodev -t tmpfs tmpfs "$1/tmp" ||:
mounted "$1/run" ||
mount -t tmpfs tmpfs "$1/run" ||:
mounted "$1/sys/firmware/efi/efivars" ||
mount -t efivarfs efivarfs "$1/sys/firmware/efi/efivars" 2>/dev/null ||:
}