[pve-devel] [PATCH storage 3/5] plugin: use relative path for qcow2 rebase command

[Fabian Grünbichler]

otherwise the resulting qcow2 file will contain an absolute path, which makes
changing the backing path of the directory storage impossible.

Signed-off-by: Fabian Grünbichler <f.gruenbichler at proxmox.com>
---
 src/PVE/Storage/Plugin.pm | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/PVE/Storage/Plugin.pm b/src/PVE/Storage/Plugin.pm
index 99e0e76..48cda30 100644
--- a/src/PVE/Storage/Plugin.pm
+++ b/src/PVE/Storage/Plugin.pm
@@ -1434,15 +1434,15 @@ sub volume_snapshot_delete {
 
         } else {
             #we rebase the child image on the parent as new backing image
-            my $parentpath = $snapshots->{$parentsnap}->{file};
             print
                 "$volname: deleting snapshot '$snap' by rebasing '$childsnap' on top of '$parentsnap'\n";
-            print "running 'qemu-img rebase -b $parentpath -F qcow2 -f qcow2 $childpath'\n";
+            my $rel_parent_path = get_snap_name($class, $volname, $parentsnap);
+            print "running 'qemu-img rebase -b $rel_parent_path -F qcow2 -f qcow2 $childpath'\n";
             $cmd = [
                 '/usr/bin/qemu-img',
                 'rebase',
                 '-b',
-                $parentpath,
+                $rel_parent_path,
                 '-F',
                 'qcow2',
                 '-f',
-- 
2.39.5