linux software RAID question

[Cr0nJ0b]

This is for all you linux gurus out there...

I have an FC4 box that I've decided to upgrade to FC6. I'm ok with most of the process...Since I've done it a few times before...but there is one thing that I'm not sure about...

I have a volume setup with RAID 0. It's comprised of 4 partitions. When I rebuild the system...I'm guessing that I run the same adm commands to build the set, and I apply the same adm.conf file to make it persist...but I just want to be really sure that when I do this, the new FC6 will see the data correctly...I think it will, but I just want to be sure.

By the way...I will be backing this up before I do anything.

 

[drag]

I am not sure how smart Fedora core is with detection of RAID and such.

If your root partition is stored on that then maybe that could be a bit more difficult, but if it's not then even if the installer doesn't detect it it's not hard to get it reconfigured and running.

This guy has a example of how to reconstruct a raid array using Knoppix:
http://www.tech-recipes.com/linux_tips1141.html

So maybe you can try that using Knoppix just to get a feel for it.

The only problems I've had configuration-wise with Linux software raid is I was running LVM on top of RAID 5. The lvm stuff would autodetect the logical volumes and such and instead of detecting them on /dev/md0, they'd find it on one of the drive partitions first. I fixed that by configuring lvm to only look at /dev/md* files for PVs. But you said that your doing partitions on top of raid so I suppose that is a non-issue for you.

 

[Cr0nJ0b]

thanks,

I'm not actually using it for a boot partition...I'm going to jump in and just do it. what the hell.