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

[Fiona Ebner]

Am 29.07.25 um 9:39 AM schrieb 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>

Reviewed-by: Fiona Ebner <f.ebner at proxmox.com>
Tested-by: Fiona Ebner <f.ebner 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',