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救急----文件系统的挂接点不见了,但逻辑卷还在!
挂接点为N/A时,/etc/filesystems文件里没有这个文件系统。我试过通过手工编辑将其加进去,用lsvg -l xxvg查看时,发现挂接点有了,但仍然无法mount及fsck;通过恢复系统mksysb备份带中的/etc/filesystems,依旧。
mount报错:
Cannot mount /dev/lvxx on /xxfs: A system call received a parameter that is not valid.
fsck报错:
Not a recognized filesystem type. (TERMINATED)
这中情况与《AIX Problem Determination Tools and Techniques》手册中描述Fix a bad superblock问题时所给的例子相符。按照其提示又重新进行一遍,情况依旧。
手册中 ---- “In many cases, restoration of the backup of the superblock to the primary superblock will recover the file system. If this does not resolve the problem, re-create the file system and restore the data from a backup.”
我是没辙了,用户的系统也不能老是停着呀,只好来最后这一招:重建文件系统,从备份磁带恢复数据了。 |
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