On Jan 30, 2008 11:19 -0600, Eric Sandeen wrote:
This seems to work fine; any comments, either about
the logic, or the text descriptions, or the various
options I've shown/not shown?
To test, copy your magic file somewhere local,
replace the ext2/3 section with the following,
and do something like:
# file -C -m magic; file -m ./magic -s /dev/sda1
-Eric
# ext2/ext3 filesystems - Andreas Dilger [EMAIL PROTECTED]
Lol, you may as well fix up the email [EMAIL PROTECTED] will
probably be the least transient.
0x438 leshort 0xEF53 Linux
0x44c lelong x rev %d
0x43e leshort x \b.%d
# No journal? ext2
0x45c lelong ^0x004 ext2 filesystem data
0x43a leshort ^0x001 (mounted or unclean)
# Has a journal? ext3 or ext4
0x45c lelong 0x004
# and small INCOMPAT?
0x460 lelong 0x040
# and small RO_COMPAT?
0x464 lelong 0x008 ext3 filesystem data
# else large RO_COMPAT?
0x464 lelong 0x007 ext4 filesystem data
# else large INCOMPAT?
0x460 lelong 0x03f ext4 filesystem data
# General flags for any ext* fs
0x460 lelong 0x004 (needs journal recovery)
0x43a leshort 0x002 (errors)
# INCOMPAT flags
0x460 lelong 0x001 (compressed)
#0x460 lelong 0x002 (filetype)
#0x460 lelong 0x010 (meta bg)
0x460 lelong 0x040 (extents)
0x460 lelong 0x080 (64bit)
#0x460 lelong 0x100 (mmp)
#0x460 lelong 0x200 (flex bg)
# RO_INCOMPAT flags
#0x464 lelong 0x001 (sparse super)
0x464 lelong 0x002 (large files)
0x464 lelong 0x008 (huge files)
#0x464 lelong 0x010 (gdt checksum)
#0x464 lelong 0x020 (many subdirs)
#0x463 lelong 0x040 (extra isize)
Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.
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