Automatic Drive Handling

A Sample Way To Generalize Disk Layouts

An email from "Shabazian, Chip" <Chip.Shabazia at bankofamerica.com>:

I've got a great way that I've been doing this for years. It works for all types of drives, scsi, ide, even the cciss scsi controllers in HP DL Servers.

In %pre, I figure out what drives exist in the system, and write out a partion scheme based on one or two drives:

%pre
# Determine how many drives we have
set $(list-harddrives)
let numd=$#/2
d1=$1
d2=$3
if [ $numd -ge 2 ] ; then
cat << EOF >> /tmp/partinfo
part pv.01 --size=1 --grow --fstype=ext3 --ondisk=$d1
volgroup volgrp01 pv.01
part pv.02 --size=1 --grow --fstype=ext3 --ondisk=$d2
volgroup volgrp02 pv.02
#HOWEVER_YOU_WANT_TO_PARTITION
EOF
else
cat << EOF >> /tmp/partinfo
part pv.01 --size=1 --grow --fstype=ext3 --ondisk=$d1
volgroup volgrp01 pv.01
#HOWEVER_YOU_WANT_TO_PARTITION
EOF
fi

%include /tmp/partinfo

Oops, forgot to mention that list-hardrives also returns the SIZE of the drive. $2 is the size of the first drive, $4 the size of the second, and so on.