I still have this problem - appeared after jaunty upgrade. The machine with 3 disks in raid5 fails to assemble the array upon startup. I have not found a solution to this problem (mdadm --examine --scan --config=mdadm.conf >> /etc/mdadm/mdadm.conf) and others do not appear to work in my case.
The only solution that works is booting the new system with the old 2.6.27-14 kernel. This also drops to busybox in a few seconds. But with this kernel it is possible to start ths system by reassambling the arrays with mdadm -As;exit. This is not possbile with the kernel that comes with jaunty (including the -14 interation). My other computer with 2 drives and raid 0 and 1 arrays upgraded without problems. Also, as much as I understand my mdadm.conf files in the kernel image appear to be correct - both on the new kernel in jaunty and the one in 2.6.27-14. Yet it does not start normally. -- mdadm software raid breaks on intrepid-jaunty upgrade https://bugs.launchpad.net/bugs/330298 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs