It looks like this disk originally had a FAT filesystem on it, and was then overwritten with a normal partition table; however, a fresh boot sector was never written, and so the remnants of the old FAT filesystem are still hanging around. This makes a safety check in libparted kick in, because it thinks that the whole disk is a single FAT filesystem and so it shouldn't do anything with it.
The Linux kernel uses a different check for this, namely checking the active flag for each entry in the partition table and bailing out if it's neither 0 nor 0x80. I'll check this with upstream. -- parted gets partitions wrong https://bugs.launchpad.net/bugs/232175 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs