ext2resize-1.1.17 doesn't like my partition: ext2resize v1.1.17 - 2001/03/18 for EXT2FS 0.5b ext2resize: ext2_open: fs has unsupported feature(s) enabled: ro compat 2ext2resize: can't open /dev/Data/Backup Yes, the fs is unmounted. I tried the CVS version and it works, although it halts a little later (probably because I'm trying to enlarge my partition too much [20G => 50G], but at least there is no reference to "ro", "compat", ...) I'm posting this bug just for reference, it's probably MUCH wiser not to put the development version of THIS program into production. My 2c: just wait for the next version bump. Reproducible: Always Steps to Reproduce: Actual Results:
you have to disable the 'ro compat' feature in order to use that version of ext2fs on your partition see the manpage of `tune2fs` to see how to do that