Bug 18565

Summary:	After update grub2 fails to boot both btrfs and lvm
Product:	Mageia	Reporter:	Ulrich Beckmann <bequimao.de>
Component:	RPM Packages	Assignee:	Thierry Vignaud <thierry.vignaud>
Status:	RESOLVED FIXED	QA Contact:
Severity:	critical
Priority:	release_blocker	CC:	joequant, krnekit, marja11, thierry.vignaud, zen25000
Version:	Cauldron	Keywords:	6sta1
Target Milestone:	---
Hardware:	All
OS:	Linux
Whiteboard:
Source RPM:	grub2-efi-2.02-0.git10457.3.mga6.x86_64	CVE:
Status comment:
Attachments:	CLI log after update

Description Ulrich Beckmann 2016-05-28 03:36:59 CEST

Description of problem:
Grub fails to boot other installations with filesystem btrfs or located in logical volumes of LVM. The boot splash shows itself. One can edit the entry and get to the grub prompt. After after entering <enter> you'll see only a black window.

30_os-prober
unknown Linux distribution - KaOS Linux (sda8, btrfs) fails
openSUSE 42.1 (sda15, ext4, noX) works
Windows works
openSUSE 42.1 (lvm, btrfs) fails
Debian 8.4 (lvm, ext4) fails

40_custom
Fedora (lvm, xfs) fails
Entry generated from Fedora


Version-Release number of selected component (if applicable):
grub2-efi-2.02-0.git10457.3.mga6.x86_64
grub2-common-2.02-0.git10457.3.mga6.x86_64
How reproducible:

Best regards,
Ulrich Beckmann

Comment 1 Ulrich Beckmann 2016-05-28 03:40:48 CEST

Created attachment 7871 [details]
CLI log after update

After update I invoked manually grub2-install and grub2-mkconfig.

Marja Van Waes 2016-05-28 09:54:08 CEST

CC: (none) => marja11
Assignee: bugsquad => zen25000

Comment 2 Joseph Wang 2016-05-28 10:50:17 CEST

FYI grub2-2.02-0.git10457.1.mga6 works

CC: (none) => joequant

Comment 3 Joseph Wang 2016-05-28 11:08:37 CEST

It's the disk cache patch that is causing problems.  Somehow the patch breaks btrfs and lvm.

Rémi Verschelde 2016-05-28 11:49:45 CEST

CC: (none) => thierry.vignaud

Comment 4 Barry Jackson 2016-05-28 12:50:05 CEST

Re-assigning to Thierry then.

Assignee: zen25000 => thierry.vignaud

Comment 5 Rémi Verschelde 2016-05-28 14:12:01 CEST

Please try to see ASAP if the patch can be reverted or fixed, this is a blocker for 6sta1.

Keywords: (none) => 6sta1
Priority: Normal => release_blocker

Comment 6 Barry Jackson 2016-05-28 16:16:41 CEST

Yes - I will push update without the patch to release now.

My mistake - I pushed later changes not realizing that the patched version was only pushed to updates_testing previously.

CC: (none) => zen25000

Comment 7 Barry Jackson 2016-05-28 16:21:52 CEST

Maybe a good thing that it was pushed in error as that way we got a wider test audience and found this side effect ;)

Comment 8 Nikita Krupenko 2016-05-28 16:25:00 CEST

I have the similar problem with btrfs on lvm, but in my case it cannot even show grub menu: https://ml.mageia.org/l/arc/dev/2016-05/msg00410.html
Though, it may be caused by the encrypted lvm.

CC: (none) => krnekit

Comment 9 Thierry Vignaud 2016-05-31 19:16:46 CEST

Closing as that patch was removed

Status: NEW => RESOLVED
Resolution: (none) => FIXED

Thierry Vignaud 2016-05-31 19:16:54 CEST

Summary: After update grub fails to boot both btrfs and lvm => After update grub2 fails to boot both btrfs and lvm