[Bug 1424123] Re: Need to update for XFS crc=1 (non-default) on-disk format change
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On 2013-08-26T20:13:26+00:00 Eric wrote:
>From the XFS list:
> Just a heads-up: GRUB currently doesn't work on a CRC enabled
> file-system. It will print the following error message:
> "not a correct XFS inode"
This format is still WIP upstream, but we should probably have the issue
on the RHEL7 radar since we plan to default to XFS even for /boot.
A simple workaround would be to not enable CRCs for the root fs; this
may be done by default in any case.
So this bug may be a WONTFIX or NOTABUG, but I figured we should at
least log the issue.
Thanks,
-Eric
Reply at:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1424123/comments/0
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On 2013-09-05T16:51:02+00:00 Ric wrote:
We probably do want this support in though - I can imagine we might not
always need a broken out /boot?
Reply at:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1424123/comments/1
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On 2014-12-15T15:37:15+00:00 Peter wrote:
At the very least can we get a pointer here to some details about the FS
feature?
Reply at:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1424123/comments/2
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On 2014-12-15T17:42:24+00:00 Eric wrote:
on-disk format stuff has recently been coalesced into
libxfs/xfs_format.h
http://oss.sgi.com/cgi-
bin/gitweb.cgi?p=xfs/xfs.git;a=blob;f=fs/xfs/libxfs/xfs_format.h
Other than that, we maybe need to do some buddy coding to do this, as I
don't think either grub2 or xfs has great up-to-date documentation...
For starters I assume grub2 could just grok new formats, but skip the
actual CRC verification... things haven't changed *that* much.
-Eric
Reply at:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1424123/comments/3
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On 2014-12-15T18:16:41+00:00 Zach wrote:
https://www.google.com/search?q=add+grub2+support+for+xfs+crc
https://www.mail-archive.com/debian-bugs-
dist at lists.debian.org/msg1288553.html
wget
http://download.opensuse.org/repositories/Base:/System/openSUSE_Factory/src/grub2-2.02~beta2-201.4.src.rpm
rpm2cpio grub2-2.02~beta2-201.4.src.rpm | cpio -id
ls *xfs*
grub2-xfs-Add-helper-for-inode-size.patch
grub2-xfs-Convert-inode-numbers-to-cpu-endianity-immediate.patch
grub2-xfs-Fix-termination-loop-for-directory-iteration.patch
grub2-xfs-V5-filesystem-format-support.patch
Reply at:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1424123/comments/4
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On 2015-06-09T14:50:36+00:00 Peter wrote:
*** Bug 1220844 has been marked as a duplicate of this bug. ***
Reply at:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1424123/comments/8
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On 2015-09-13T11:27:24+00:00 Winfrid wrote:
I have tested grub2-2.02-0.23.fc23.x86_64 installed on an Fedora 21
I succeeded in booting a CentOS 7 with XFS from the fedora boot menu,
but I still cannot boot a SLED 12 with XFS from the fedora boot menu.
Using my openSUSE 13.2 I can boot CentOS 7 and SLED 12.
If you need more information, please advise me, how to create a log from
grub2.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1424123/comments/9
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On 2015-11-19T12:23:23+00:00 errata-xmlrpc wrote:
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHSA-2015-2401.html
Reply at:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1424123/comments/10
** Changed in: grub2 (Fedora)
Status: Unknown => Fix Released
** Changed in: grub2 (Fedora)
Importance: Unknown => Undecided
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https://bugs.launchpad.net/bugs/1424123
Title:
Need to update for XFS crc=1 (non-default) on-disk format change
Status in grub2 package in Ubuntu:
Triaged
Status in grub2 package in Fedora:
Fix Released
Bug description:
Filing a note here in case I forget later.
It looks like GRUB (2.02-beta2-15) in 14.10 doesn't support XFS's new
on-disk metadata format that has CRCs. (rationale:
https://www.kernel.org/doc/Documentation/filesystems/xfs-self-
describing-metadata.txt)
mkfs.xfs -m crc=1,finobt=1 /dev/sdXY creates an XFS with the new on-
disk format. This is NOT the default, and probably won't be until
kernel support for it has been in distros for a while.
redhat bug with some patches from Dec 2014:
https://bugzilla.redhat.com/show_bug.cgi?id=1001279
I haven't yet dug up any changelogs about those patches getting merged
into GRUB's upstream git repo.
If there's a PPA, or an easy way to build a .deb from git master (or
some other way I can easily test git master on an Ubuntu system), I'd
be interested and willing to test this.
Testing confirms that xfs crc support was the issue. I made two plain
non-MD partitions to take that out of the equation. I formatted one
with XFS defaults, and the other with XFS crc. I copied my fresh
ubuntu install into each one. I did grub-install /dev/sda while
chrooted into the non-crc xfs, and grub-install /dev/sdb in the CRC
one. Booting from sda worked fine.
Booting from sdb (I can tell them apart in the bios boot menu easily,
because they're not the same make), I was dropped into the grub rescue
shell. I could use grub's ls to see data on the non-crc partition,
but not on the crc partition. So it's clear that GRUB doesn't
understand the new XFS metadata v5 format.
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