-How to install CentOS on 27” imac (Mid 2010 - 2.93 Ghz, i7, 8gig ram)
with OS X and Xubuntu 13.04 already installed
Assumed - OS X and Xubuntu already installed and rEFIt already installed in
OS X with the line towards the bottom of:
/efi/refit/refit.conf
set to:
default_selection L
on the mac root partition so Linux will boot by default
-Boot centos 6.4 lived dvd and install btrfs tools from installer then run
these commands to resize btrfs partition (changing size to fit your needs):
( was testing btrfs so use the resize tool for your type of file system
installed)
# mkdir /media/b
# mount /dev/sd(whatever) /media/b
# btrfs filesystem resize -900g /media/b
-Created a gparted boot disc from:
http://gparted.org/download.php
then booted from gparted Live-CD and resized partition
-Booted back into xubuntu and ran update-grub - but it didn’t find centos
-Now run upgrade from 13.04 to 13.10
ran update-grub again and now it sees Centos
run
vi /etc/default/grub.conf
change GRUB_DEFAULT to
GRUB_DEFAULT=6
run update-grub again
reboot
Now Centos will will show up in grub2 boot menu and be the default one
selected
If CentOS has a kernel change, update-grub must be run again in xubuntu.
-Update system
$ sudo yum update
reboot
---------------
Info above can be found here:
https://sites.google.com/site/comptekkia/linux/how-to-install-centos-on-mid-2010-27-imac
Thanks,
-wes
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