Re: grub2 broken with xfs

[Robert William Fuller]

On 11/10/2011 03:49 AM, Vladimir 'φ-coder/phcoder' Serbinenko wrote:
> On 30.08.2011 04:21, Robert William Fuller wrote:
>> Hi,
>>
>> I am trying to use grub2 with XFS.  Grub1 works fine.  When I try to
>> boot with grub2, I receive the error "error: not a correct XFS BMAP
>> node."  Then grub2 drops me into rescue mode.
> Fixed. But I suggest you increase your volume size. This error happens
> only on incredible fragmentation, way past the performance is degraded.

Are you suggesting I increase my volume size, or my block size?  My root
file system is only 60% in use.  My block size is really small at 512.

Fragmentation doesn't seem that bad:

# xfs_db -r /dev/sda6
xfs_db> frag
actual 271616, ideal 261368, fragmentation factor 3.77%
xfs_db>

However, since I am trying to upgrade my GRUB, not use it with a new
install, I can imagine that GRUB is finding all the holes.

Thank you for fixing this!

Rob

>> I am using a stock 2.6.35.13 kernel from kernel.org.
>>
>> I am using the latest grub2 source from Bazaar which I fetched with the
>> command "bzr branch http://bzr.savannah.gnu.org/r/grub/trunk/grub";.
>>
>> The XFS file system was created with the command "mkfs.xfs -f -l
>> size=32m,version=2,lazy-count=1 -b size=512 -n size=512 -i maxpct=0
>> /dev/sda7".
>>
>> Please let me know what I can do to help.  Thank you.
>>
>> Rob