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Re: [linux-lvm] resizing a filesystem failed, but volume was resized... can I restore the previous lv?



Lars,

vgcfgrestore(8) the last backup of your metadata, which contains the old
status of the LV in question.
VG needs to be offline to run vgcfgrestorew though :-(


On Tue, Aug 21, 2001 at 11:25:04AM +0200, Lars Grobe wrote:
> Hi!
> 
> I have had problems with resizing (shrinking) a reiser fs on a lv. The fs
> resizing wasn't completed, but the lv was resized than. So I wonder if I can
> "undo" the resizing of the lv? In fact, the lv would have to take the same
> space as before, so I could do fsck and rebuild my fs.
> 
> Thank You, CU, Lars.
> 
> www.rechnerpool.com
> 
> 
> 
> The messgae from the reiserfs-list follows:
> ___
> 
> LOG> Hi!
>  LOG> This is part two of my report of a failed resize:
> 
>  LOG> Yesterday I tried to resize a reiser fs. It is build on a LVM
> partition.
>  LOG> As I know that there is some calculation to make the resize of LVM an
>  LOG> Reiserfs fit, I used the script resize_rfs from the German magazine
>  LOG> Linuxmagazin (6/2000). This script is doing some checks and
> calculations
>  LOG> on parameters. So I tried to shrink my fs from 320 to 290 GB.
> 
> can you send that script to me ?
> 
>  LOG> But the process was interrupted, so the fs wasn't resized completely,
>  LOG> while the script did go on to the next step and resized the logical
>  LOG> volume to 290 GB.
> 
>  LOG> So there are two errors in the fs: there is a started, but not
> completed
>  LOG> resize of the fs AND the fs is on a lvm-volume that is smaller than
> the
>  LOG> filesystem.
> 
>  LOG> What should I do? I would usually try to set the size of the lv back
> to
>  LOG> 320 GB. 
> 
> Yes. But I do not know how to force LVM system to allocate same disk space
> in
> same order for your logical volume again :(
> 
>  LOG> Should I do a fsck than? 
> 
> Yes. run reiserfsck --check /dev/... , then follow the instructions.
> 
>  LOG> Is there a way to keep the data (else I
>  LOG> will have to replay from the backup, so I should start soon)?
> 
> I think you should try to restore LV and then run reiserfsck on it.
> 
>  LOG> Thank You, CU, Lars.
> 
> -- 
> Thanks,
> Alex.
> 
> 
> 
> 
> -- 
> GMX - Die Kommunikationsplattform im Internet.
> http://www.gmx.net
> 
> 
> _______________________________________________
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-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

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Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
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