William Stearns writes: > 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
It definitely is somewhere. You can try to search archives for this mailing list. It required recompiling file(1) through, because reiserfs signature is at 16k offset and by default file(1) didn't look that far. But probably things changed since then. > http://www.stearns.org/mkrootfs/ > Cheers, Nikita. > - Bill > > --------------------------------------------------------------------------- > "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]> > -------------------------------------------------------------------------- > William Stearns ([EMAIL PROTECTED]). Mason, Buildkernel, named2hosts, > and ipfwadm2ipchains are at: http://www.stearns.org > -------------------------------------------------------------------------- >
