I had the same issue - no raid after upgrading to edgy. Note I don't boot from the RAID drive - rather it is a seperate striped fakeraid (nforce4) RAID disk set.
Installing Richard's package binary package listed above fixes it for me - many thanks! -- DMRAID stopped to work in kernels > 2.6.15 https://launchpad.net/bugs/54246 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
