Parallels
From Wikifications
Centos
The install was a total breeze. Download an iso, make a new VM of type redhat linux, turn it on, map the ISO to a device, install.
Adjusting the console size
Edit
/boot/grub/grub.conf
and append vga=XXX to the uncommented line that begins with 'kernel' so that it looks something like:
kernel /vmlinuz-2.6.9-34.EL ro root=/dev/VolGroup00/LogVol00 vga=791
Not sure where the 791 came from; found it on some forum.
Disable smartd
We don't need the 'smart' disk stuff, since Mac OS X handles all that
sudo find /etc/rc.d/rc* -name '*smartd*' | xargs rm