[clug-talk] Server Fails to boot after a Power Failure

[Juan Alberto Cirez]

Good day Friends,
I got a message from one of by bodies in BC with the following problem:
"...I've run into a problem I'm not sure how to fix. I have a server set 
up at a school, for file sharing and authentication. It's a SME server, 
based on CentOS. It's been working great for them for 4 years now, but 
recently they had some power issues where the power had been 
disconnected from the server suddenly. Now as it boots, it gets to the 
part where it loads the filesystem and passes it to the kernel, then it 
errors on reading the 1st file (a config file or library, can't 
remember) and it gets a Kernel Panic message, and an error 21. I think 
the disk is corrupt, but not sure how to fix. Is there some kind of disk 
check utility for linux to check the disks integrity, and hopefully 
repair it, or am I barking up the wrong tree, and it's something else?..."

Here is my reply. I know. Not very helpful...
"...You have to be more specific. Can you get the text of the error.
Depending on the file system you're using Ext2, Ext3, ReiserFS, etc. the 
file system may or may not get corrupted when the server is not shutdown 
properly. It may also be a case of a single or multiple files being 
corrupted or the kernel itself being corrupted...bottom line: need more 
info..."

Anything you guys can add will be appreciated.
Thanks

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Juan Alberto Cirez, CFAA/CFAT, AFSA/CFAT,CIPS/ISP, HSA(e), CSD(e)
Sr. Field Service Technician/Project Manager
J. A. Cirez Integrated Technologies, Inc
Fire Protection | IT Services | Security
Tel.:  (780)972-4739
Fax:   (780)747-6078
Email: jacintech at gmail.com
Web:   http://www.jacintech.com
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