Originally Posted by catkin
It's not much help for you recovering data right now but the graphical LVM utility may not be robust, as discussed in this LQ thread
Recovery, if possible, will probably require booting an LVM-capable OS (such as Knoppix from DVD) and using LVM's extensive self-repair facilities. Sorry -- I'm not familiar with them so can't give any pointers.
catkin/ Thank you very much for your kind and valuable comment.
According to your comment - require booting an LVM-capable OS, save my box.
I install centos 5.3 on vmware and attached errored hard drive, and fix it.