guestfs_list_filesystems uses mount/umount to discover btrfs sub-volumes and since 1.37 it generates random mountpoint so it will longer affect already mounted filesystems if either. --- generator/actions_core.ml | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/generator/actions_core.ml b/generator/actions_core.ml index ed8cb16..9a695c0 100644 --- a/generator/actions_core.ml +++ b/generator/actions_core.ml @@ -9674,7 +9674,8 @@ content of the device is undetermined or empty. This command runs other libguestfs commands, which might include C<guestfs_mount> and C<guestfs_umount>, and therefore you should -use this soon after launch and only when nothing is mounted. +use this soon after launch and only when nothing is mounted +(it is no longer a requirement since 1.37). Not all of the filesystems returned will be mountable. In particular, swap partitions are returned in the list. Also -- 2.9.5