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
----- Original Message ----- | 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
To boot off of a 3TB disk you require a (U)EFI capable machine which supports GPT partitions. There is no way to boot a disk that is 3TB in size using a BIOS based machine.
On 11/4/2013 4:14 PM, James A. Peltier wrote:
To boot off of a 3TB disk you require a (U)EFI capable machine which supports GPT partitions. There is no way to boot a disk that is 3TB in size using a BIOS based machine.
its a Mac, didn't they use something entirely different for their boot, like openboot or something?
On Mon, Nov 4, 2013 at 7:33 PM, John R Pierce pierce@hogranch.com wrote:
On 11/4/2013 4:14 PM, James A. Peltier wrote:
To boot off of a 3TB disk you require a (U)EFI capable machine which
supports GPT partitions. There is no way to boot a disk that is 3TB in size using a BIOS based machine.
its a Mac, didn't they use something entirely different for their boot, like openboot or something?
Old World Macintosh hardware used OpenFirmware [0] [1].
I had an older hand-me-down PowerMac and XServe that I fiddled with for a short period of time ... OF is really quite cool. But machines with PowerPC CPUs weren't worth the hassle (less than perfect(?) hardware support, comparatively slow, and not to mention the XServe was super loud!) for me, so I got rid of them.
It is my understanding OF went away when Apple switched Macs to Intel hardware.
[0] http://en.wikipedia.org/wiki/Open_Firmware [1] http://osxbook.com/book/bonus/ancient/whatismacosx/arch_boot.html
-- john r pierce 37N 122W somewhere on the middle of the left coast
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On Mon, Nov 4, 2013 at 5:14 PM, James A. Peltier jpeltier@sfu.ca wrote:
----- Original Message ----- | 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
To boot off of a 3TB disk you require a (U)EFI capable machine which supports GPT partitions. There is no way to boot a disk that is 3TB in size using a BIOS based machine.
It boots fine with os x 10.6.3..... Initially, I stuck in the os x 10.6.3 install disk, partitioned the disk, installed os x, then resized the partition in osx. Then in the centos installer I told it to use the open space on the disk. It installed, but then would not boot.
-wes
On 2013-11-05, Wes James comptekki@gmail.com wrote:
On Mon, Nov 4, 2013 at 5:14 PM, James A. Peltier jpeltier@sfu.ca wrote:
To boot off of a 3TB disk you require a (U)EFI capable machine which supports GPT partitions. There is no way to boot a disk that is 3TB in size using a BIOS based machine.
It boots fine with os x 10.6.3.
OS X is already aware of UEFI and GPT, so it makes perfect sense that it'd boot correctly on its own hardware. You may wish to consider using a tool like rEFIt (http://refit.sourceforge.net/) or rEFInd (http://www.rodsbooks.com/refind/installing.html#installsh) to help manage booting linux on your Mac.
--keith
On Mon, Nov 4, 2013 at 9:19 PM, Keith Keller < kkeller@wombat.san-francisco.ca.us> wrote:
On 2013-11-05, Wes James comptekki@gmail.com wrote:
On Mon, Nov 4, 2013 at 5:14 PM, James A. Peltier jpeltier@sfu.ca
wrote:
To boot off of a 3TB disk you require a (U)EFI capable machine which supports GPT partitions. There is no way to boot a disk that is 3TB in size using a BIOS based machine.
It boots fine with os x 10.6.3.
OS X is already aware of UEFI and GPT, so it makes perfect sense that it'd boot correctly on its own hardware. You may wish to consider using a tool like rEFIt (http://refit.sourceforge.net/) or rEFInd (http://www.rodsbooks.com/refind/installing.html#installsh) to help manage booting linux on your Mac.
--keith
I did install refit. I use it all the time with dual boot macs (os x/windows) in a student lab I have configured. I installed refit and enabled it (ran enable.sh in /efi/refit), but for some reason refit does not even show up when booting. I pressed alt, to check what I could boot from, but if I select the "Windows" partition to boot from (windows always shows there with any other os to boot from), it starts booting, then ends up with a blinking cursor at the top left.
-wes
Am 05.11.2013 um 05:41 schrieb Wes James comptekki@gmail.com:
On Mon, Nov 4, 2013 at 9:19 PM, Keith Keller < kkeller@wombat.san-francisco.ca.us> wrote:
On 2013-11-05, Wes James comptekki@gmail.com wrote:
On Mon, Nov 4, 2013 at 5:14 PM, James A. Peltier jpeltier@sfu.ca
wrote:
It boots fine with os x 10.6.3.
OS X is already aware of UEFI and GPT, so it makes perfect sense that it'd boot correctly on its own hardware. You may wish to consider using a tool like rEFIt (http://refit.sourceforge.net/) or rEFInd (http://www.rodsbooks.com/refind/installing.html#installsh) to help manage booting linux on your Mac.
--keith
I did install refit. I use it all the time with dual boot macs (os x/windows) in a student lab I have configured. I installed refit and enabled it (ran enable.sh in /efi/refit), but for some reason refit does not even show up when booting. I pressed alt, to check what I could boot from, but if I select the "Windows" partition to boot from (windows always shows there with any other os to boot from), it starts booting, then ends up with a blinking cursor at the top left.
the osx partition has in this case two boot options, osx and refit. You have to tell the firmware what to boot.
bless --folder /efi/refit --file /efi/refit/refit.efi --labelfile /efi/refit/refit.vollabel --setBoot
to revert it
bless --folder /System/Library/CoreServices --file /System/Library/CoreServices/boot.efi --setBoot
from within refit centos can be booted ...
-- LF
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James A. Peltier -
John R Pierce -
Keith Keller -
Leon Fauster -
SilverTip257 -
Wes James