** Description changed: Yesterday I did a fresh install of Natty amd64. I used the PXE installer so all packages are up to date right after installation. I partitioned the disk to have two software raid1 devices. One for swap, one for / with xfs. Installation completed successfully, grub was installed to MBR. The system has a >95% failure rate in booting. At first it would hang on a purple screen. I blindly typed "reboot" at this screen, which worked. So I figured out that it would boot to a shell but not show it. Then, I added "nosplash" to the kernel command line and removed "quiet". This revealed that the system drops into a BusyBox shell labled "initramfs" when booting fails. Unfortunately, I cannot tell whether it shows any errors on screen because the BusyBox shell resets the screen buffer, CTRL+PageUp does not work. Please help me how to figure out what is wrong. Either tell me which log file I can search for the very first booting messages OR release a package update which fixes the screen-clearing of the initramfs shell. If you do that I will take the effort of doing the 10-20 boot attempts to get to the point where I can update the packages... If the initramfs-boot-process is logged anywhere I can check the log files without getting the system to boot through a bootable USB stick... + + ==== SRU Justification ==== + + IMPACT: Users who install on a degraded RAID1 or who lose a disk drive + will be unable to boot. + + TEST CASE: + + 1. Install a natty system with root on a software RAID1 + 2. After booting once, shutdown + 3. remove one disk entirely + 4. boot the system, it may drop to initramfs, or it may boot degraded + 5. reboot, this time it should reliably drop to initramfs + 6. poweroff and add the disk in again, it should now boot degraded + 7. install updated mdadm + 8. repeat steps 2-5 , it should pass and NOT drop to initramfs + + REGRESSION POTENTIAL: The fix that has been uploaded to oneiric already + takes care to err on the side of responding to degraded arrays. Still + mdadm is very sensitive and so probably needs a bit of extra testing to + ensure that it works properly, including passing the usual RAID1 iso + install tests (with the additional step of installing the mdadm package + from proposed right after install)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/778520 Title: install on degraded raid1 does not boot, drops to initramfs shell -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
