guestfs_set_uuid wants device as argument.
Moreover, btrfstune -U is unable to set uuid for subvolumes,
only unmounted partitions are supported.
Here we skip btrfs subvolumes.
---
sysprep/sysprep_operation_fs_uuids.ml | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/sysprep/sysprep_operation_fs_uuids.ml
b/sysprep/sysprep_operation_fs_uuids.ml
index ed4e81a..f125eb0 100644
--- a/sysprep/sysprep_operation_fs_uuids.ml
+++ b/sysprep/sysprep_operation_fs_uuids.ml
@@ -30,13 +30,15 @@ let rec fs_uuids_perform g root side_effects =
List.iter (function
| _, "unknown" -> ()
| dev, typ ->
- let new_uuid = Common_utils.uuidgen () in
- try
- g#set_uuid dev new_uuid
- with
- G.Error msg ->
- warning (f_"cannot set random UUID on filesystem %s type %s: %s")
- dev typ msg
+ if not (is_btrfs_subvolume g dev) then (
+ let new_uuid = Common_utils.uuidgen () in
+ try
+ g#set_uuid dev new_uuid
+ with
+ G.Error msg ->
+ warning (f_"cannot set random UUID on filesystem %s type %s: %s")
+ dev typ msg
+ )
) fses
let op = {
--
1.8.3.1
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