Description: Testing with dm devices was failing on Ubuntu because /dev/dm-X is the actual device node, but the code wanted it to be a symlink. Fixed dm_test_device() to test that the file ( or node it points to ) is a block device, which seems a much more appropriate test. Index: b/1.0.0.rc16/lib/device/scan.c =================================================================== --- a/1.0.0.rc16/lib/device/scan.c +++ b/1.0.0.rc16/lib/device/scan.c @@ -86,8 +86,8 @@ dm_test_device(struct lib_context *lc, c { struct stat s; - return !lstat(path, &s) && -/* S_ISLNK(s.st_mode) && */ /* No symlinks any more. */ + return !stat(path, &s) && + S_ISBLK(s.st_mode) && !strncmp(get_basename(lc, path), "dm-", 3); }