On 1/24/12 9:46 AM, Christian Kildau wrote:
> On Jan 24, 2012, at 3:12 PM, Roger Willcocks wrote:
>> On Tue, 2012-01-24 at 11:13 +0100, Christian Kildau wrote:
>>> Top posting... sorry.
>>> I have now found dozens of other users with a similar issue! e.g.
>>> To make it short all of these users were running ext4 and a fs resize to
>>> the new geometry fixed their problems! Sadly XFS doesn't support shrinking
>>> the fs(?).
>> It seems fairly clear that your drive or the bios is lying about its
>> capacity. The filesystem occupies the entire disk, but the disk has
>> become 'smaller'. A quick web search suggests a 'hidden protected area'
>> - the two block counts in this link line up with the before and after
>> sizes you're seeing:
>> It would be instructive to see what 'hdparm -N /dev/sdd' says on your
>> system. And a dmesg log would be handy too.
>> Note that this is /not/ a problem with xfs. The right fix is to tell the
>> drive to report its actual capacity, not to shrink the filesystem.
> I do understand that is definitely not an XFS issue, but some strange issue
> with ubuntu or their kernel patches...
> I got my data back by dumping the entire hdd (it was partitionless
> nevertheless) to a bigger 2TB hdd.
> XFS mounts without any problems and I can restore my data.
> Thanks all for your help!
It's likely still missing the end of the filesystem, though.
Can you run the hdparm command Roger suggested on your original hard drive,