I had a testbed 13.04 server which had a boot volume partitioned into three, root, swap and Workspace as well as two other drives running in raid 1. The Workspace and raid volumes were setup using LVM and MDADM under Webmin and formatted with EXT4.
I reinstalled Ubuntu 13.04 onto the same system, deleting the root and swap partitions first. Now when I attempt to mount the volumes under Webmin it fails with the error:
mount: wrong fs type, bad option, bad superblock on /dev/mapper/ubuntux64--vg-Workspace, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so
Looking at dmesg it shows the error:
EXT2-fs (dm-0) error couldn't mount because of supported optional features
The volume is formatted as EXT4 so not sure why it is defaulting to EXT2. If I do an
fdisk -l the volumes show but it says that they don't have a valid partition table.
I can manually mount the volumes at the command line specifying EXT4 but how can I correct the partition table error which I think is causing Ubuntu to default to EXT2/3?