converting to RAID etc

[John]

[snip]
>   
>> Which files store the RAID and LVM configuration data so that I can 
>> ensure that they are not overwritten when I copy the rest of my server 
>> from a flat disk onto the RAID/LVM system?
>>
>>     
>
>
> This information is stored mostly within the "partition" schemes. This makes 
> the system more prone to auto-detection.
>
> Some configs are stored in /etc/mdadm and /etc/lvm, but in any case, when you 
> add a new HD already setup for RAID and/or LVM to your 
> non-RAID/non-LVMsystem, everything should be detected at boot time.
>
> For LVM you should begin with pvscan, vgscan, and lvscan.
>
> Question: I didn't get the part if you are installing RAID/LVM in a new 
> installation then cp'ing your *data*, or are migrating the full system to a 
> set of HDs with RAID/LVM. The second is more complicated, of course.
>
> regards
> FF
>
>   

In essence, the latter.

I have a working installation on a flat single disk.

I aim to install a basic RAID/LVM installation across 3 hard disks and 
want to dump my single disk installation onto the RAID disk.

HTH

J