Jun 12

Linux??????????

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?????????????????Linux???????????????????????????????????????????????????????????????????????????????????????Linux?????????????????????

1?Ext2???????????
?Linux???Ext2??????????????????????????????1K?????????????????????????????????????????????????????12?????????????????????????????12????????12?????????????????????????????????256??????????Ext2fs???????4??????????????????1024/4=256?????????????????????????????????

2???????????
???Linux????????debugfs????????Ext2????????????????????????????????
???????????????????????????????????/usr???
mount –r –n –o remount /usr
-r?????????-n?????/etc/mtab??????/etc??????????????????xxx partion busy????fuser??????????????????????
fuser –v –m /usr
??????????????????????
fuser -k –v –m /usr
?????????????????
??????????????????/????????boot?????linux single????????????????????????????????????????????????????????/?????????????????????dos/windows????????????
mount –r –n /dev/hda1 /mnt/had
???????debugfs????Linux? /dev/hda5?
#debugfs /dev/hda5
????debugfs???debugfs?
??lsdel??????????????????
debugfs?lsdel
debugfs: 2692 deleted inodes found.
Inode Owner Mode Size Blocks Time deleted
164821 0 100600 8192 1/ 1 Sun May 13 19:22:46 2001
…………………………………………………………………………………
36137 0 100644 4 1/ 1 Tue Apr 24 10:11:15 2001
196829 0 100644 149500 38/ 38 Mon May 27 13:52:04 2001

debugfs:
?????????????2692???????????????????????????????????????????????????????????????????????????????????????????196829????
????????????
debugfs?stat
Inode: 196829 Type: regular Mode: 0644 Flags: 0×0 Version: 1
User: 0 Group: 0 Size: 149500
File ACL: 0 Directory ACL: 0
Links: 0 Blockcount: 38
Fragment: Address: 0 Number: 0 Size: 0
ctime: 0×31a9a574 — Mon May 27 13:52:04 2001
atime: 0×31a21dd1 — Tue May 21 20:47:29 2001
mtime: 0×313bf4d7 — Tue Mar 5 08:01:27 2001
dtime: 0×31a9a574 — Mon May 27 13:52:04 2001
BLOCKS:
594810 594811 594814 594815 594816 594817 ………………………………….
TOTAL: 38
??????dump???????
debugfs?dump /mnt/hda/01.sav
??????????????debugfs?
debugfs?quit
??????????inode?
debugfs?mi
Mode [0100644]
User ID [0]
Group ID [0]
Size [149500]
Creation time [0×31a9a574]
Modification time [0×31a9a574]
Access time [0×31a21dd1]
Deletion time [0×31a9a574] 0
Link count [0] 1
Block count [38]
File flags [0×0]
Reserved1 [0]
File acl [0]
Directory acl [0]
Fragment address [0]
Fragment number [0]
Fragment size [0]
Direct Block #0 [594810]
…………………………….
Triple Indirect Block [0]
??mi????????????????????????????????deletion time??0??????Link count??1??????debugfs?
debugfs?quit
???fsck??/dev/hda5
fsck /dev/hda5
???????????????lost+found????????????????????
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