Thanks for all replies .<br><br>Today, I did the following things,and also met the other errror message:<br><br>First, I used the CentOS 4.6 DVD to boot for the linux rescue and then i copy all data to the another server <br>
<br>Then, reboot the server and then boot it from the hard disk.<br><br>This time, the screen came up with these:<br><br>Checking root filesystem:<br>----------------------------------------------<br>EXT3-fs error (device dm-0) :<br>
ext3_get_inode_loc: unable to read inode block -inode=7473432, block=14942282<br><br>fsck: error while loading shard libraries: libuuid.so.1:cannot open shared object file: <br>Input/Output error:<br><br>*** An error occured during the file
system check.<br>*** Droping you to a shell; the system will reboot<br>***
when you leave the shell.<br>Give root password for maintenance<br>(or
type Control-D to continue)<br><br>--------------------------------------------------------------<br><br><table border="0"><tbody></tbody></table>It is obvious that the fsck command maybe not to use .<br><br>What could i do now ?<br>
<br> Maybe it is the only method to reinstall the CentOS operating system. isn't it?<br><br><br><br><br><br><div class="gmail_quote">
On Tue, Mar 23, 2010 at 10:24 AM, Les Mikesell <span dir="ltr"><<a href="mailto:lesmikesell@gmail.com" target="_blank">lesmikesell@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div>sync wrote:<br>
> Well , Thanks for your suggestions.<br>
><br>
> 1.Which kind of file system is being used on the volume having trouble?<br>
> A: it uses the ext2fs filesystem on CentOS 4.6 x86_64<br>
><br>
> 2.Do you have backups?<br>
> A: that server is used to backup other servers data , so itself has not<br>
> any backups<br>
><br>
> 3.Is the volume small enough and do you trust yourself enough with dd to<br>
> duplicate it off to a<br>
> USB|firewire|esata disk? (now THIS _is_ risky. :)<br>
><br>
><br>
> 4.have you read `man fsck` to see why it was being suggested to run it<br>
> WITHOUT the a or p options?<br>
> A: Yeah ~ I have read that . In particular , "-p" options ,. This<br>
> option is mainly provided for those sysadmins<br>
> who don't want to repartition the root system to be small and compact(<br>
> which is really the right solution)<br>
<br>
</div>You are either going to have to run fsck and answer 'y' to whatever it suggests<br>
or learn more than it knows about fixing filesystems.<br>
<font color="#888888"><br>
--<br>
Les Mikesell<br>
<a href="mailto:lesmikesell@gmail.com" target="_blank">lesmikesell@gmail.com</a><br>
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