EV1 is now offering the ability to restore a drive and get RHEL and cpanel setup. I am getting it done as we speak so I will see how it goes, it looks fine though.
As always do this all at your own risk, I have not had any trouble with it but if for whatever reason you mess up your box don't come back to me!
To minimize downtime I decided to have them put in a second drive as a slave, so when it was rebooted RHEL was not booted but rather the old rh9.
First do
#fdisk -l
This will list all partitions, usually the 2nd drive is /dev/hdbx or hdcx hddx.
#mkdir /mnt/rhel
#mount /dev/hddx /mnt/rhel
(or whatever /dev/ it is on)
Now copy over all of your daily backups, you DO keep daily backups right??
#mkdir /mnt/rhel/backup
#mkdir /mnt/rhel/backup/cpbackup/
#mkdir /mnt/rhel/backup/cpbackup/daily
#cp /backup/cpbackup/daily/* /mnt/rhel/backup/cpbackup/daily/
this will of course take a long time.
Now you should be ready to boot into the RHEL, which required putting in a ticket to ev1 telling them to switch the drives.
Once its booted first run
mkdir /root/cpanel; cd /root/cpanel; wget layer1.cpanel.net/latest;sh latest
to start the cpanel installer, it can take awhile (like hours) so leave lots of time when you do this. Once the installer is all done open WHM and do the basic config, then goto configure backups and restore all your backups!
Make sure and check out the how-to regarding how to secure cpanel and do the basic setup as this is going to be a new server.