[uml-devel] resizing root_fs

[uml-devel] resizing root_fs

[itamar]

dd if=/dev/zero of=root_fs.ext3 bs=1 count=1 seek=40G conv=notrunc

[root@router conacci]# resize2fs -p root_fs.ext3
resize2fs 1.36 (05-Feb-2005)
resize2fs: File too large while trying to determine filesystem size
[root@router conacci]#

how to resize this file ?

Itamar Reis Peixoto
+55 (34) 3238 3845
e-mail : itamar@ispbrasil.com.br
http://www.ispbrasil.com.br


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Re: [uml-devel] resizing root_fs

[Blaisorblade]

On Wednesday 13 April 2005 06:07, itamar wrote:
> dd if=/dev/zero of=root_fs.ext3 bs=1 count=1 seek=40G conv=notrunc
Right enlarging command, it seems.
> [root@router conacci]# resize2fs -p root_fs.ext3
> resize2fs 1.36 (05-Feb-2005)
> resize2fs: File too large while trying to determine filesystem size

This old resize2fs has a problem because the file is >= 2G (or something like 
that), it seems... probably truncating the file to a more normal size and 
retesting will work, so you possibly hit a resize2fs bug... at least so I 
guess. It's strange though, but I don't see any other possible explaination.

> [root@router conacci]#

> how to resize this file ?

-- 
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729
http://www.user-mode-linux.org/~blaisorblade




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Re: [uml-user] Re: [uml-devel] resizing root_fs

[Frank Sorenson]

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Blaisorblade wrote:
> On Wednesday 13 April 2005 06:07, itamar wrote:
> 
>>dd if=/dev/zero of=root_fs.ext3 bs=1 count=1 seek=40G conv=notrunc
> 
> Right enlarging command, it seems.
> 
>>[root@router conacci]# resize2fs -p root_fs.ext3
>>resize2fs 1.36 (05-Feb-2005)
>>resize2fs: File too large while trying to determine filesystem size
> 
> 
> This old resize2fs has a problem because the file is >= 2G (or something like 
> that), it seems... probably truncating the file to a more normal size and 
> retesting will work, so you possibly hit a resize2fs bug... at least so I 
> guess. It's strange though, but I don't see any other possible explaination.

Because the filesystem size was so small to begin with (256 MB if I
remember correctly), inodes only represent 1K of data.  Resizing the
filesystem then creates more 1K blocks, but you run into the maximum
number of inodes that the filesystem can create.  Try to determine the
maximum size you can resize to, or create the new large filesystem and
move everything from the old to the new.

Frank
- --
Frank Sorenson - KD7TZK
Systems Manager, Computer Science Department
Brigham Young University
frank@tuxrocks.com
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