As you know I've been testing centos on an old mac pro. I have 1 disk left of 4 that I'm testing on. I had a 3TB disk and stuck it in and couldn't get centos to boot off of it. It would install, but not boot. I then got "old" disk 4 installed with it. Any idea why the 3TB disk doesn't work? I pulled out an os x 10.6.3 and that would install and boot. I resized the disk in osx and reinstalled centos, but centos still won't boot off the 3TB disk. Thanks, -wes