File problem question

File problem question

[Ruben Rubio]

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Hi,

I have a problem with xfs filesystem. I have lost a file. So:

root@rigodon log # pwd
/var/log
root@rigodon log # ls -al lastlog
- -r--------  1 root root 146292 ago 11 10:44 lastlog
root@rigodon log # du -sh * | grep lastlog
7,6G    lastlog

I have a file witch size is 7,6 GB. However, if I ls -al is another
file. Seems like filesystems is being corrupted.

How can I delete 7,6 G file?
Is this dangerous? Is there any another action that I shoud do?

Thanks in advance
Ruben Rubio Rey
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File problem question

[Ruben Rubio]

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Hash: SHA1

Hi,

I have a problem with xfs filesystem. I have lost a file. So:

root@rigodon log # pwd
/var/log
root@rigodon log # ls -al lastlog
- -r--------  1 root root 146292 ago 11 10:44 lastlog
root@rigodon log # du -sh * | grep lastlog
7,6G    lastlog

I have a file witch size is 7,6 GB. However, if I ls -al is another
file. Seems like filesystems is being corrupted.

How can I delete 7,6 G file?
Is this dangerous? Is there any another action that I shoud do?

Thanks in advance
Ruben Rubio Rey
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Re: File problem question

[Christian]

On Fri, 11 Aug 2006, Ruben Rubio wrote:
> root@rigodon log # ls -al lastlog
> - -r--------  1 root root 146292 ago 11 10:44 lastlog
---^
    is that a typo or is there a space in the permission field?

> I have a file witch size is 7,6 GB. However, if I ls -al is another
> file. Seems like filesystems is being corrupted.

What does xfs_check say? Which (linux?-)kernel are you using? If you are 
about to xfs_*, please make sure you have the *latest* xfsprogs[0], 
which is 2.8.10-1 right now...

Christian.
[0] ftp://oss.sgi.com/projects/xfs/cmd_tars/
-- 
BOFH excuse #68:

only available on a need to know basis

Re: File problem question

[Nathan Scott]

On Fri, Aug 11, 2006 at 10:51:06AM +0200, Ruben Rubio wrote:
> root@rigodon log # pwd
> /var/log
> root@rigodon log # ls -al lastlog
> - -r--------  1 root root 146292 ago 11 10:44 lastlog
> root@rigodon log # du -sh * | grep lastlog
> 7,6G    lastlog

what does "xfs_bmap -vp lastlog" say?

cheers.

-- 
Nathan

Re: File problem question

[Ruben Rubio]

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Christian wrote:
> On Fri, 11 Aug 2006, Ruben Rubio wrote:
>> root@rigodon log # ls -al lastlog
>> - -r--------  1 root root 146292 ago 11 10:44 lastlog
> ---^
>    is that a typo or is there a space in the permission field?

This is an error when I did copy/paste

> 
>> I have a file witch size is 7,6 GB. However, if I ls -al is another
>> file. Seems like filesystems is being corrupted.
> 
> What does xfs_check say? Which (linux?-)kernel are you using? If you are

I did't run xfs_check yet. I have to disconnect the server because I
have to unmount the filesystem in orden to run the program (I ll do it
after holidays if there is not risk).

xfsprogs version: 2.6.13-2
Kernel: 2.6.9-1.667smp
Distro: Fedora Core release 3

> about to xfs_*, please make sure you have the *latest* xfsprogs[0],
> which is 2.8.10-1 right now...
> 
> Christian.
> [0] ftp://oss.sgi.com/projects/xfs/cmd_tars/

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Re: File problem question

[Ruben Rubio]

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Nathan Scott wrote:
> On Fri, Aug 11, 2006 at 10:51:06AM +0200, Ruben Rubio wrote:
>> root@rigodon log # pwd
>> /var/log
>> root@rigodon log # ls -al lastlog
>> - -r--------  1 root root 146292 ago 11 10:44 lastlog
>> root@rigodon log # du -sh * | grep lastlog
>> 7,6G    lastlog
> 
> what does "xfs_bmap -vp lastlog" say?

root@rigodon log # xfs_bmap -vp lastlog
lastlog:
 EXT: FILE-OFFSET      BLOCK-RANGE        AG AG-OFFSET        TOTAL
   0: [0..279]:        hole                                     280
   1: [280..287]:      64537592..64537599 15 (17552..17559)       8


> 
> cheers.
> 

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Re: File problem question

[Ruben Rubio]

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I think I have found the response.
lastlog is a special "sparse file".

When du -sh command is executed, the space that shows is unreal.
ls -al shows the good one disk usage.

Then, all seems is normal.

Thanks anyway!

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