Good day, all,
When I use the file command on a file that contains an ext2/ext3
filesystem, the file command returns:
[wstearns@sparrow test-resize]$ ls -al emptyfs.ext3.100
-rw------- 1 wstearns wstearns 104857600 Apr 2 13:57 emptyfs.ext3.100
[wstearns@sparrow test-resize]$ file emptyfs.ext3.100
emptyfs.ext3.100: Linux rev 1.0 ext3 filesystem data
The signature comes from Andreas Dilger's contribution to
/usr/share/magic:
# ext2/ext3 filesystems - Andreas Dilger <[EMAIL PROTECTED]>
0x438 leshort 0xEF53 Linux
>0x44c lelong x rev %d
>0x43e leshort x \b.%d
>0x45c lelong ^0x0000004 ext2 filesystem data
>>0x43a leshort ^0x0000001 (mounted or unclean)
>0x45c lelong &0x0000004 ext3 filesystem data
>>0x460 lelong &0x0000004 (needs journal recovery)
>0x43a leshort &0x0000002 (errors)
>0x460 lelong &0x0000001 (compressed)
#>0x460 lelong &0x0000002 (filetype)
#>0x464 lelong &0x0000001 (sparse_super)
>0x464 lelong &0x0000002 (large files)
Running file on a reiserfs file returns:
[wstearns@sparrow test-resize]$ file emptyfs.reiser.100
emptyfs.reiser.100: ASCII text, with no line terminators
Is there a similar signature that could identify a reiserfs file?
The files I ran this on can be found at
http://www.stearns.org/mkrootfs/
Cheers,
- Bill
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"A 'No' uttered from deepest conviction is better and greater
than a 'Yes' merely uttered to please, or what is worse, to avoid
trouble."
-- Mahatma Ghandi
From: Adrian Bunk <[EMAIL PROTECTED]>
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William Stearns ([EMAIL PROTECTED]). Mason, Buildkernel, named2hosts,
and ipfwadm2ipchains are at: http://www.stearns.org
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