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Member Since 24 May 2007
Offline Last Active Jul 25 2016 01:25 AM

Posts I've Made

In Topic: Anyone tried 'Upgrade OS X' option in Yosemite installation on Maveri...

12 December 2014 - 12:23 PM

Hello from Troy :)


I performed the upgrade install on my system (which is currently as follows - Gigabyte GA-Z68X-UD5-B3 motherboard, Intel Core i5 2500K cpu, 16 GB Corsair Vengeance DDR3 1600 RAM, 2 x 2 TB WD Green HDD's, DVD+/- RW, 2 x Gigabyte AMD R9 270 OC Edition graphics cards in CrossFire).  It worked fine - although to be on the "safe" side I did create disk image files (.dmg) of my mavericks installation before I attempted the upgrade install of Yosemite.


Have you tried booting with -v -kext-dev-mode=1 to see where the KP is occurring ?? (and if so, is it possible to take a screenshot of the panic - it might help to find a solution to your problem.  Also providing your system specifications could assist others (including myself) in helping you out :) 


Many thanks from Troy :)

In Topic: Upgrading to Mavericks or Yosemite Help- Ga-p55a-ud4p rev 1.0

31 October 2014 - 08:17 AM

Ok the reason why you would get that message about this file cannot be loaded to this machine is because as far as I am aware - you cannot upgrade from Snow Leopard to Yosemite directly (from the Mac App Store).  You would first have to upgrade from Snow Leopard to Mountain Lion (or Mavericks) and then upgrade to Yosemite.  Although I am happy to be proven wrong and corrected on that


You might also have trouble with getting your graphics acceleration (for video playback and games) to work with a GTX285 under Yosemite as it is quite an old card nowdays and may not be supported under Yosemite


Also a quick check of the Mac App Store just now seems to indicate that the Mavericks install download has been taken down from the front page and a quick search on there seems to not find any trace of the Mavericks installer on the site anymore.

In Topic: XFX Radeon R9 280x problems

31 October 2014 - 08:01 AM

Also I forgot to mention this in my edited post - It helps (if you are using clover boot loader) to have it installed to the EFI partition on your Yosemite boot drive (that will fix the boot0 error message you have been getting) could also possibly help with the system reboot - (if my other suggestion does not help you)

In Topic: XFX Radeon R9 280x problems

26 October 2014 - 04:55 AM

I'm having a similar issue myself with my rig under Yosemite - get an instant reboot as soon as the framebuffer is trying to be loaded before seeing the desktop.  The computer boots to the desktop in safe mode like it should.  Has me scratching my head as Mavericks works wonderfully well on the same config and hardware. I have Mavericks and Yosemite dual booting.


For the record my hardware is as follows: Intel Core i5 2500K, Gigabyte GA-Z68X-UD5-B3 motherboard, 16GB kit of Corsair Vengeance 1600Mhz DDR3 ram, 2 x 2TB HDD, and for graphics cards 2 x Gigabyte R9 270 OC Edition card running in crossfire configuration and I am using clover efi bootloader version r2976 (released yesterday 25/10/2014 Australian Time)


can attach my clover configuration file if required.


Many thanks in advance from Troy :)




Fixed my problem ----- Turns out there is a bug? (possibly) in the Apple Migration Tool in Yosemite that not only copies over your documents, files, music etc.  but also copies over your custom kext files (which would be fine, but the AMDRadeon7000Controller.kext from Mavericks is incompatible with Yosemite and causes the reboot when trying to load to the mac desktop) - In my case I had to manually copy over my "Applications", "/Library/Applications Support", /User/"user name"/Library/Application Support" as well as my music and documents Folders from my Mavericks install partition to my new Yosemite install partition - rebooted and everything now works wonderfully :) with full graphics acceleration / video playback :)


Hope this might help someone else having similar issues / problems.

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