minor nowipe fix

diff --git a/fai/config/hooks/partition.DEFAULT b/fai/config/hooks/partition.DEFAULT
index 0a0c2ad69946535a624c74d0ce3f7443ad69671c..afd88a007fc3d503e33f39a65e0dfbbe772b66b0 100755 (executable)
--- a/fai/config/hooks/partition.DEFAULT
+++ b/fai/config/hooks/partition.DEFAULT
@@ -15,9 +15,15 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
+PS4='+ $LINENO '
 set -eE -o pipefail
 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
 
+if [[ $EUID != 0 ]]; then
+  echo "$0: error: need to run as root" >&2
+  exit 1
+fi
+
 # for calling outside of FAI:
 # # need to redep and set that location so that we get luks keys
 # export FAI=/srv/fai/config
@@ -549,10 +555,10 @@ if [[ $DISTRO == debianstretch_bootstrap ]]; then
 else
   boot_vol=boot_$DISTRO
 fi
-if $wipe; then
-  if [[ -e /mnt/$boot_vol ]]; then
-    btrfs subvolume delete /mnt/$boot_vol
-  fi
+if $wipe && [[ -e /mnt/$boot_vol ]]; then
+  btrfs subvolume delete /mnt/$boot_vol
+fi
+if [[ ! -e /mnt/$boot_vol ]]; then
   btrfs subvolume create $boot_vol
 fi
 cd /