On Thu, 2008-01-31 at 03:05 -0700, Andreas Dilger wrote:
> ... To get the interesting bits you need:
>
> debugfs: stat <966665> # prints decoded inode, "File ACL:" is a block number
> debugfs: imap <966665> # prints inode block number, offset
>
> dd if=/dev/mapper/vg_main-lv_samba of=/tmp/inode.bin bs=4k count=1 skip={iblock}
> dd if=/dev/mapper/vg_main-lv_samba of=/tmp/inode.bin bs=4k count=1 skip={ACLblk}
Ah, ok - learning fast. Lets see how I go this time:
e2fsck 1.40-WIP (14-Nov-2006)
Pass 1: Checking inodes, blocks, and sizes
(entry->e_value_offs + entry->e_value_size: 116, offs: 120)
Extended attribute in inode 3342652 has a value offset (72) which is
invalid
Clear? no
...
# debugfs /dev/mapper/vg_main-lv_samba
debugfs: stat <3342652>
Inode: 3342652 Type: regular Mode: 0770 Flags: 0x0 Generation: 3684645243
User: 0 Group: 10140 Size: 18432
File ACL: 0 Directory ACL: 0
Links: 1 Blockcount: 40
Fragment: Address: 0 Number: 0 Size: 0
ctime: 0x475be06e -- Sun Dec 9 23:02:46 2007
atime: 0x475d4073 -- Tue Dec 11 00:04:43 2007
mtime: 0x45d2686a -- Wed Feb 14 12:09:54 2007
Size of extra inode fields: 4
Extended attributes stored in inode body:
= "01 00 00 00 01 00 07 00 04 00 05 00 08 00 05 00 d6 27 00 00 08 00 07 00 09 28 00 00 08 00 07 00 0a 28 00 00 10 00 07 00 20 00 00 00 " (44)
DOSATTRIB = "0x20" (4)
BLOCKS:
(0):6713397, (1):6713399, (2):6713395, (3):6713405, (4):6713396
TOTAL: 5
debugfs: imap <3342652>
Inode 3342652 is part of block group 204
located at block 6684693, offset 0x0b00
# dd if=/dev/mapper/vg_main-lv_samba of=iblock.bin bs=4k count=1 skip=6684693
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.000429132 seconds, 9.5 MB/s
I'm assuming that "File ACL: 0" means that there's no ACL block.
> Attach all of the above to an email to the list... It will only be 8 kB.
Ok, done. Hopefully this is what you mean by "the list". :)
Cheers,
Kevin.
Attachment:
iblock.bin
Description: Binary data
