Here same problem 3 years after releasing new version of Ubuntu. Today upgrading from 10.04 LTS to 12.04. Apart broken grub2 update, which I already worked around - system does not boot any more. System configuration: / at REVO Drive PCIe SSD, visible as fake raid (2x 115 GB) sdb & sdc, x86_64. Before upgrade in 10.04 it was recognised during boot as /dev/mapper/sil_biajabcecafc device, and root filesystem was mounted on it. Unfortunately after update to 12.04 LTS , and fixing broken grub2 "grub_xputs" failure from pendrive my system is still unusable, probably due to invalid/broken initrd/udevd: ALERT /dev/disk/by-uuid/3a11ac88-b86a-4500-a94a-737adf8b989e does not exist. Dropping to a shell! And your hints are not very helpful, because my new initrd upgraded by fresh ubuntu installation contains only dmsetup and mdadm binaries. I would add dmraid happily to initrd if my first boot was successful!
So problem #1 - how to create manually required device /dev/mapper/sil_biajabcecafc from initrd Problem #2 - how to update broken installation 12.04 so it would have proper fakeraid autodetection in initrd Problem #3 - how to inform people willing to install/update to 12.04 that they will have serious problems? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu. https://bugs.launchpad.net/bugs/931929 Title: root on RAID:0 fails to boot Status in dmraid: New Status in tools for generating an initramfs: Confirmed Status in udev - /dev/ management daemon: New Status in initramfs-tools package in Ubuntu: Confirmed Bug description: Booting from RAID is often broken after upgrades or fresh installations of Ubuntu. initramfs is not activating RAID devices. Steps to reproduce: 1. Upgrade or Install Ubuntu on a RAID 2. Reboot 3. Observe failure to find root drive and drop to busybox To work around this, when given the busybox prompt enter: dmraid -ay Verify that all of your raid devices are initialized, then enter: exit Booting should then continue. See comment #2 for a persistent (rebootable) workaround. To manage notifications about this bug go to: https://bugs.launchpad.net/dmraid/+bug/931929/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
