fsck修复报错

xiaobaitu

一个文件系统无法mount上去：
[XXX1][/]# mount /ccbsapp/prm
Replaying log for /dev/PRMlv.
mount: 0506-324 Cannot mount /dev/PRMlv on /ccbsapp/prm: The media is not formatted or the
format is not correct.
0506-342 The superblock on /dev/PRMlv is dirty.  Run a full fsck to fix.

用fsck进行修复报错：
[XXX1][/]# fsck -y /ccbsapp/prm
The current volume is: /dev/PRMlv
Primary superblock is valid.
J2_LOGREDO:log redo processing for /dev/PRMlv
logredo start at: 1213470054 sec and end at 1213470054 sec
Primary superblock is valid.
fsck: 0507-149 Duplicate block references have been detected in Metadata.
        fsck cannot continue.
Errors detected in the file system inode allocation map.
fsck: 0507-278 Cannot continue.
File system is dirty.

[XXX1][/]# fsck -p /ccbsapp/prm
The current volume is: /dev/PRMlv
Primary superblock is valid.
J2_LOGREDO:log redo processing for /dev/PRMlv
logredo start at: 1213470100 sec and end at 1213470100 sec
Primary superblock is valid.
fsck: 0507-149 Duplicate block references have been detected in Metadata.
        fsck cannot continue.
Errors detected in the file system inode allocation map.
fsck: 0507-278 Cannot continue.
File system is dirty.

[XXX1][/]# getlvcb -AT PRMlv
         AIX LVCB
         intrapolicy = m
         copies = 1
         interpolicy = m
         lvid = 00c31bd000004c0000000117a5656fd2.1
         lvname = PRMlv
         label = /ccbsapp/prm
         machine id = 31B804C00
         number lps = 1150
         relocatable = y
         strict = y
         stripe width = 0
         stripe size in exponent = 0
         type = jfs2
         upperbound = 32
         fs = vfs=jfs2:log=/dev/loglv02:mount=trueptions=rw:account=false
         time created  = Sat Apr 19 12:43:56 2008
         time modified = Fri Apr 25 08:06:31 2008


不知各位有没有什么好的修复方法，谢谢！！！

xiaobaitu

注，该文件系统为jfs2。
当用dd count=1 bs=4k skip=15 seek=8 if=/dev/PRMlv of=/dev/PRMlv用备份块给恢复，其报错一样。

xiaobaitu

注，该文件系统为jfs2。
当用dd count=1 bs=4k skip=15 seek=8 if=/dev/PRMlv of=/dev/PRMlv用备份块给恢复，其报错一样。

zyl_ibmaix

这样报错的话应该是由于超级块的原因

ooo-ocp

这种情况下，只能恢复系统了；没有别的办法。

AIX深入敌后

smitty fs 里找