Setting up RAID1 Post-install

[Mike Burger]

On Tue, 10 Aug 2004, kenwardc wrote:

> Hi there
> 
> I just had exactly this problem. I set up Redhat on a new server,
> installed all the packages I wanted to use, then decided that I wanted
> RAID. Put in the controller and DISASTER - it wouldn't work.
> 
> The only way to do this, unless someone out there knows better, is to
> install the OS again, with the RAID controller in the hardware, then
> copy your original setup, excluding the dirs that hold the kernel
> etc., onto your new disk.
> 
> I did it this way and it took me all of an hour to get the system back
> to exactly the way I wanted it. Brilliant and it all worked fine.

I don't know about this.  I added a 3Ware controller to my pre-existing 
RHL9 system, created the appropriate partitions, formatted them, moved the 
data to them that I wanted to store on them, and then made sure that I 
added those partitions to the fstab, myself.

Without seeing his fdisk -l output, it's hard to say what he has to do, 
but, assuming from what he wrote, that the RAID disk shows up as /dev/sda, 
his system is already seeing the disk/device, as his swap partitions are 
both on that device and mounted.

All he probably really needs to do is remember that the paritioning 
programs are not necessarily going to modify his fstab file, and that 
he'll need to know what partitions he wants to mount, where he wants to 
mount them, and to modify his fstab file, accordingly.

-- 
Mike Burger
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