Tom, I believe that you have encountered two separate problems. 1) "Can't have a partition outside the disk!".
To diagnose this problem, the output from the command "fdisk -l -u /dev/mapper/pdc_jcchiiab" would be useful. That way we can determine if one of the partitions (perhaps the extended partition) goes beyond the end of the disk. 2) GParted does not show the /dev/mapper/pdc_jcchiiab device (bug 554582) I have been able to confirm this as a problem using the "ubuntu-10.04-beta2-desktop-i386.iso" disk image. My Intel software RAID (/dev/mapper/isw_cjbdddajhi_Vol0) does not display in the drop down list in GParted. GParted Live 0.5.2-7, which uses parted-2.2, does work and successfully recognizes my Intel Software RAID. It is possible that this problem might be fixed by a patch that has been applied to the Fedora copy of parted-2.2: "Parted should not canonicalize symlinks under /dev/mapper (#577824)" http://koji.fedoraproject.org/koji/buildinfo?buildID=165650 Since Ubuntu has also patched parted-2.2, it is also possible that this change has impacted the ability to recognize dmraid devices. -- Disk detected as unallocated https://bugs.launchpad.net/bugs/48412 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs