Red Hat Bugzilla – Bug 966598
Crash in VG creation when installing LVM-on-Intel firmware RAID (19 Beta RC4)
Last modified: 2015-02-17 10:19:13 EST
Created attachment 752246 [details]
anaconda traceback from the bug
I booted F19 Beta RC4 DVD, written to a USB stick with dd, on my system with two 500GB hard disks in a RAID-0 configuration on the Intel firmware RAID controller. If I try to do an all-defaults install - LVM, guided partitioning - anaconda crashes while trying to create the VG. Logs will be attached.
Nominating as a Beta blocker, as this is basically a failure of firmware RAID: https://fedoraproject.org/wiki/Fedora_19_Beta_Release_Criteria#Hardware_and_firmware_RAID , "The installer must be able to detect and install to hardware or firmware RAID storage devices."
But there's a possible get-out clause here: install to ext4-on-fwraid succeeds. So we could say that install to firmware RAID works, and use ext4 as the workaround for LVM-on-fwraid failing. I did not test btrfs.
dlehman, if you have any input on the blocker-iness of this bug or otherwise before today's go/no-go, i'm sure that'd help. is it likely to affect all lvm-on-fwraid installs? or is it somehow specific to my system/disk/controller/usb installs or something else like that? Thanks!
my vote on this would be a close -1, document the 'use ext4' workaround (or any other workaround that shows up).
I just did an install to a promise raid array (dmraid) using LVM with no problems so it would seem that this does not affect all bios raids
-1 blocker +1 FE since this seems not to affect all bios raid and we have a workaround
if anything it might affect analogous software RAID cases, but yeah, it's good to note it doesn't affect dmraid.
dlehman believes this likely relates to data (specifically LVM metadata) left lying around on one of the disks that was made into the array I used for testing; it doesn't seem like a bug that will inevitably affect all Intel FW raid cases.
Discussed at 2013-05-23 Fedora 19 Beta Go/No-Go meeting, acting as a blocker review meeting: http://meetbot.fedoraproject.org/fedora-meeting-2/2013-05-23/f19_beta_gono-go_meeting.2013-05-23-17.01.log.txt . With the fact that this can be worked around, the fact it doesn't affect dmraid, and the fact that it's probably related to pre-existing metadata on one of the disks in the array, this seems far too corner case-y to block the release. Clearly, anaconda's mechanism for handling Intel fw raid is basically working, and this is a config-specific bug. Rejected as a blocker.
Just as a note to self so I can hopefully reproduce this to aid dlehman in trying to make anaconda cope with this scenario, this is how I think I caused this:
The sequence was 'connect one disk just as a normal SATA disk, controller in AHCI mode, and do a UEFI install to it (default LVM layout); then connect the other disk, switch the controller to RAID mode, create a RAID-0 array out of the two disks, try to install to it.
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