Hi, I know that it is old post but I believe my experience is corresponding with the mentioned problems:
Every-time when I rearranged internal/external/usb hard disk/s partition/s (for example for RAID0 array/s blkid always had wrong info). It happened all the time from natty to precise distro ubuntu. For ubuntu original compiled kernel from 2.6.x.x to 3.2.x.x versions. Just small example from today: blkid|sort ... /dev/sdl1: LABEL="EFI" UUID="cfb104a6-6b8d-46d1-b75b-1ef00a3f59ef" TYPE="ext2" /dev/sdl2: UUID="3c9cec88-bb36-44af-b303-671c8e985d7e" TYPE="swap" /dev/sdl3: UUID="6ab6304e-ca1c-f4d0-5749-0a6711686b87" UUID_SUB="c56352cc-1535-d113-e3ff-177997f66d65" LABEL="UBU2TBEXT42:raid0ocz" TYPE="linux_raid_member" /dev/sdm1: UUID="6ab6304e-ca1c-f4d0-5749-0a6711686b87" UUID_SUB="751807af-60a3-d541-3476-cc5a31db0d88" LABEL="UBU2TBEXT42:raid0ocz" TYPE="linux_raid_member" /dev/sdn1: UUID="6ab6304e-ca1c-f4d0-5749-0a6711686b87" UUID_SUB="c45ae821-e9f3-aada-a538-d4041ce4db0f" LABEL="UBU2TBEXT42:raid0ocz" TYPE="linux_raid_member" /dev/sdo1: UUID="6ab6304e-ca1c-f4d0-5749-0a6711686b87" UUID_SUB="8eacee1a-3217-7ed7-e22b-76fc61b0bb05" LABEL="UBU2TBEXT42:raid0ocz" TYPE="linux_raid_member" compared to: gdisk -l /dev/sdl /dev/sdm /dev/sdn /dev/sdo ... Disk identifier (GUID): EF900EC5-4F8E-47D0-875E-6A261FC2F413 ... Number Start (sector) End (sector) Size Code Name 1 34 117226304 55.9 GiB FD00 PCEUBU1:raid0ocz ... (just noticed - the same UUID for all four partitions, different label name ) --- my experience: gparted - shows wrong labels and UUIDs gnome disk utility - shows proper information blkid command - shows wrong information gdisk - shows proper information -- for all previous it happened even after reboot. -- I remember those problem have appeared in grub prompt either ( when set root = (tab key) or showing wrong information for blkid in initramfs prompt. (for blkid: before reboot blkid/gparted shows wrong TYPE="" of partition) after reboot blkid shows properly TYPE="linux_raid_memeber") (I have created more than 50 RAID0 arrays within last year - it behaves always the same way for blkid command) lsb_release -rd Description: Ubuntu 12.04 LTS Release: 12.04 apt-cache policy gparted gparted: Installed: 0.12.1-1~getdeb2~precise Candidate: 0.12.1-1~getdeb2~precise Version table: *** 0.12.1-1~getdeb2~precise 0 500 http://archive.getdeb.net/ubuntu/ precise-getdeb/apps amd64 Packages 100 /var/lib/dpkg/status 0.11.0-2 0 500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages apt-cache policy libblkid1 libblkid1: Installed: 2.20.1-1ubuntu3 Candidate: 2.20.1-1ubuntu3 Version table: *** 2.20.1-1ubuntu3 0 500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages 100 /var/lib/dpkg/status apt-cache policy util-linux util-linux: Installed: 2.20.1-1ubuntu3 Candidate: 2.20.1-1ubuntu3 Version table: *** 2.20.1-1ubuntu3 0 500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages 100 /var/lib/dpkg/status apt-cache policy gdisk gdisk: Installed: 0.8.1-1build1 Candidate: 0.8.1-1build1 Version table: *** 0.8.1-1build1 0 500 http://archive.ubuntu.com/ubuntu/ precise/universe amd64 Packages 100 /var/lib/dpkg/status apt-cache policy gnome-disk-utility gnome-disk-utility: Installed: 3.0.2-2ubuntu7 Candidate: 3.0.2-2ubuntu7 Version table: *** 3.0.2-2ubuntu7 0 500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages 100 /var/lib/dpkg/status If you have any further question - please do not hesitate to contact me. Kind Regards, M. P.S. If I missed some information from previous posts - I am sorry - I did not read everything. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/137314 Title: blkid shows outdated / wrong UUID To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/e2fsprogs/+bug/137314/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs