Ricardo M. Correia wrote: > This patch adds ZFS filesystem detection to libblkid. > > It probes for VDEV_BOOT_MAGIC in the first 2 ZFS labels in big-endian > and little-endian formats. > Unfortunately the probe table doesn't support probing from the end of > the device, otherwise we could also probe in the 3rd and 4th labels (in > case the first 2 labels were accidentally overwritten).. > > Eventually we would set the UUID from the ZFS pool GUID and the LABEL tag > from the pool name, but that requires parsing an XDR encoding of the pool > configuration which is not trivial. Hi Ricardo: I've got a bug on fedora now where a partition w/ zfs on it is being recognized as ext3. VDEV_BOOT_MAGIC isn't anywhere in the first 1M of the device, though an old ext3 superblock is intact. :( # hexdump -C sda2-first-1M | grep "0c b1 07 b0 f5 02 00 00" # hexdump -C sda2-first-1M | grep "00 00 02 f5 b0 07 b1 0c" # (so a plea - can you guys change mkfs to zero old signatures? maybe 256k at the front & end of the device in question?) there is apparently an uberblock signature in it though: # hexdump -C sda2-first-1M | grep "0c b1 ba 00" 00015e30 30 e8 ff ff 85 c0 5b 75 48 8b 06 35 0c b1 ba 00 does blkid need more work here, I guess? Thanks, -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
