We also see somehow similar issues here sporadically on a number of machines with 10.04.1 - in our case, we only have a data-RAID which is not necessary for mounting root partition. And this data raid will stay half-way assembled on some boots.
Currently, we think it's caused by udevd being killed in the middle of its operation, see #613273. If "mdadm --incremental" is interrupted at the wrong moment, it seems to cause a lot of weird issues - ranging from a leftover /dev/.tmp.md.8:xx which makes mdadm bailing out with "Strange error loading metadata for /dev/md0" for all future operations until reboot to completely damaged data structures in the kernel with wrong device numbers, half-busy devices and the like. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/610107 Title: Race condition at system-boot: md-RAID not always ready in time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/udev/+bug/610107/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
