For qcow2 on LVM, it is necessary that the volumes are active to be able to query the size. For offline migration, the volumes would be activated later in storage_migrate() and for online migration, the volumes are already active.
This makes an attempt to offline migrate a qcow2 on LVM volume correctly fail with an error about lacking support, rather than an error about not being to determine the size. See also commit "migration: abort early when size or format cannot be determined" for context. Signed-off-by: Fiona Ebner <[email protected]> --- src/PVE/QemuMigrate.pm | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/PVE/QemuMigrate.pm b/src/PVE/QemuMigrate.pm index 6b563343..8da6f15d 100644 --- a/src/PVE/QemuMigrate.pm +++ b/src/PVE/QemuMigrate.pm @@ -449,6 +449,8 @@ sub scan_local_volumes { $local_volumes->{$volid}->{bwlimit} = $self->get_bwlimit($sid, $targetsid); $local_volumes->{$volid}->{targetsid} = $targetsid; + # For some volumes, like qcow2 on LVM, it is necessary to activate to query the size. + PVE::Storage::activate_volumes($storecfg, [$volid]); $local_volumes->{$volid}->@{qw(size format)} = PVE::Storage::volume_size_info($storecfg, $volid); die "unable to determine size for volume '$volid'\n" -- 2.47.3
