In trfs-progs 4.4 the error message has been changed, and our check did not work anymore. Yes, parsing user messages really sucks... --- daemon/btrfs.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/daemon/btrfs.c b/daemon/btrfs.c index 85dbe00..c67af83 100644 --- a/daemon/btrfs.c +++ b/daemon/btrfs.c @@ -1029,9 +1029,12 @@ do_btrfs_subvolume_show (const char *subvolume) } /* If the path is the btrfs root, `btrfs subvolume show' reports: - * <path> is btrfs root + * <path> is btrfs root [in btrfs-progs < 4.4] + * <path> is toplevel subvolume */ - if (out && strstr (out, "is btrfs root") != NULL) { + if (out && + (strstr (out, "is btrfs root") != NULL || + strstr (out, "is toplevel subvolume") != NULL)) { reply_with_error ("%s is btrfs root", subvolume); return NULL; } --