Comment 11 for bug 1320402

I also have a similar problem. Had a lot of troulbe setting uf mdadm raid.

Have mdadm for my root partition as well as others so cannot use workaround displayed above.

I believe the problem is somethingto di with thre initramfs not closing down mdmon properly on shutdown.

I also have the problem of the desktop not only showing the imsm mdadm devices but also showiing the the partitions of the raw disk devices. Does not do it every time though. so I end up with 3 copies of the same partition showing up 1 for each mirrored device and one for the virtual array.

I have two mirroed western digital red drives, using intel matrix raid. i dual boot with windows.

I'm not sure if I should not switch back to dmraid, worked fine on 12.04.

Any suggestions, progress on this issue?