letsdrink

stuppy_, on 29 July 2012 - 06:17 PM, said:

I Just found a solution by myself. MyHack installed a "NullCPUPowerManagement.kext" but it should be removed when we use z77x-UD5H.
So look for it, delete, rebuild caches, add darkwake flag in ChameleonWizard and sleep should work fine.
But for my system I have some weird sluggish mouse after system wakes up. It stays for 15-20 sec and then go away and system works well.

Yes I use old Adi2000B kext package.

I've successfully installed 10.8 using MyHack app

tot318 thanks for your reply it was really helpful. Following your method now I can boot from my flash drive and then install 10.8

But after installation system does not boot nor from hdd or usb. I get the apple logo and spinnig circle. I'm not at home now and I can't provide a photo of verbose boot yet.

Maybe you can say what I did wrong.

1. I've followed all steps provided in given guide.

2. For model I've selected mac pro 5.1 (as I did in my 10.7.4)

May bad english gives me problems:(

I try to describe my situation in other words.

I have Lion (10.7.4) installed and everything works well. I want to install Mountain Lion (10.8) and to do so I've downloaded a installation usb-stick creation utility (this utility name banned on this forum I don't know why).
With help of this utility I made a installation usb-stick. (btw I install Lion same way and everything works great).

When I boot from this USB flash drive to install OS X 10.8 I see:
black screen - apple with spinnig circle - monitor goes in sleep mode.

If I boot from this USB flash drive verbose mode it hangs at
IOAPIC: Version 0x20 Vectors. and after 30-40 seconds some lines of the text
flashing very quickly and then monitor goes in sleep mode.

For me it looks quite similar to old 10.7.4 problem but I'm most likely wrong.

I've recorded a short video that shows this problem:


Sorry for music I don't know how to remove audio in youtube editor.