Setting up RAID1 Post-install

[Andrew Lewis]

On Tue, 2004-08-10 at 19:49, Mike Burger wrote:
> 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.

I'm using software RAID1, or want to. ;)

At the moment I've just got /boot, /, and swap on a normal IDE drive.

Disk /dev/hda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
 
   Device Boot    Start       End    Blocks   Id  System
/dev/hda1   *         1        13    104391   83  Linux
/dev/hda2            14      9599  76999545   83  Linux
/dev/hda3          9600      9729   1044225   82  Linux swap

And lets say I have another drive partitioned the same. How do I convert
my live installation to run off two RAID1 mirrors?

Best,
-AL.