On 30/06/11 09:05, Mark Rogers wrote:
At the moment I'm using the "hardware" RAID. I should be able to remove one disk from the array and still boot from the other, then create a new degraded md array with the second disk, copy everything across, boot from the md array, add the second first disk to the array.
That being the case then I would be going about it in a similar way (adjusting as needed the instructions if you are running grub2) to this
http://www.howtoforge.com/software-raid1-grub-boot-debian-etch
That sounds fine in theory but there are several stumbling blocks in practice due to my lack of knowledge, which lead me towards a fresh install, which isn't a great way to learn! (At present there's very little on the box other than a fresh install so if wiping it is the way to go that's what I'll do.)
Well sounds like you don't have much to lose apart from some time trying to do it in situ first, and by trying it this way you will learn pretty much everything you need to know about software raid on linux as you will be doing it all manually rather than letting the installer do all the work for you. I say back up what is needed on that box and give it a go...it's not irreversible until you add the final member from your original array anyway.