RAID 1 to RAID10 MIGRATION fails to boot CentOS5.3

Say, I booted CentOS fine on the RAID 1 (2 drive setup).
After MIGRATION to RAID 10 (4 DRIVES), boot fails with "GRUB".
How can I repair
shaunwinginAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

wesly_chenCommented:
Assume you are talking about software RAID and follow the instruction like this:
http://serverfault.com/questions/43677/best-way-to-grow-linux-software-raid-1-to-raid-10

In the website, step 5, you need to boot from the new RAID10. And fail on GRUB?
Here is the way to use boot CD to fix re-install grub (make sure you have new GRUB configuration file)
http://beginlinux.com/server_training/serv_admin_m/grub
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
andyalderSaggar maker's framemakerCommented:
GRUB doesn't understand how to boot software RAID 10, hardly surprising because the RAID software has to be loaded before an OS can understand RAID so the RAID software can't sit on a striped volume which means /boot has to be on RAID 1 rather than RAID 5 or 6 or 10. (or something like that).

http://www.enterprisenetworkingplanet.com/netsysm/article.php/3731646/Manage-a-Linux-RAID-10-Storage-Server.htm might be some help.
0
shaunwinginAuthor Commented:
Say, I'm using the AMD raid controller to migrate the RAID 0 and 10....
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Disaster Recovery

From novice to tech pro — start learning today.