----- Original Message ----- From: "Wes James" <comptekki at gmail.com> To: "CentOS mailing list" <centos at centos.org> Sent: Saturday, 23 November, 2013 12:03:15 PM Subject: [CentOS] Finally.... CentOS on iMac core 2 I've been trying several combinations of OSX, CentOS to try and get CentOS installed on an old iMac. I finally first installed OS X, then installed CentOS in the open space after OS X. With refit installed and selecting CentOS, it starts booting but get a screen that a boot device can't e found. So I then install Xubuntu with the option to replace OS X. After Xbuntu is installed and then do a reboot the grub screen comes up and I can now select CentOS and it will boot. Can someone explain why this is? I can't just install CentOS on the whole disk, as I get the blinking mac disk with question mark. Thanks, -wes _______________________________________________ CentOS mailing list CentOS at centos.org http://lists.centos.org/mailman/listinfo/centos this is due I believe due to the partitioning scheme of the iMac, using GPT, and as grub does not support GPT partitions. you have to use grub2. Hence, why xubuntu works.