dev="${1:-/dev/root}"
-if [ -e "$dev" ]; then
- if strstr "$(udevadm info --query=env \"--name=$dev\")" "ID_FS_TYPE=btrfs"; then
- info "Checking, if btrfs device complete"
- unset __btrfs_mount
- mount -o ro "$dev" /tmp >/dev/null 2>&1
- __btrfs_mount=$?
- [ $__btrfs_mount -eq 0 ] && umount "$dev" >/dev/null 2>&1
- exit $__btrfs_mount
- fi
-fi
+[ -e "$dev" ] && {
+ local rootinfo;
+ rootinfo=$(udevadm info --query=env "--name=$dev" 2>/dev/null)
+ if strstr "$rootinfo" "ID_FS_TYPE=btrfs"; then
+ info "Checking, if btrfs device complete"
+ unset __btrfs_mount
+ mount -o ro "$dev" /tmp >/dev/null 2>&1
+ __btrfs_mount=$?
+ [ $__btrfs_mount -eq 0 ] && umount "$dev" >/dev/null 2>&1
+ exit $__btrfs_mount
+ fi
+}
exit 0