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Is it possible to have dual boot of 2 Mac installations?

Joined
Feb 23, 2011
Messages
49
Motherboard
Mountain Lion
CPU
3.06
Graphics
AMD HD 5670
Mac
Classic Mac
Mobile Phone
Hi,
I just bought an SSD, I plugged it in, and installed Lion on in using UniBeast. The installation finished successfully, but when I try to boot using the UniBeast USB stick, it gives me a kernel panic with the error message "No HPETs available, CPU configured incorrectly" then it says something about AppleIntelCPUPowerManagement.
My other Mac installation (named Lion as well) is still working flawless!

I though it may be because I'm having two Mac OSs, so i unplugged the SATA cable from the HDD. This gave me bigger problems:
1-The BIOS settings were resetted. But i changed them back.
2-The SSD was sort of formatted, and when I try to format it to do another installation, it gives me the error "Unable to write to the last block of the device"!

Now, my other HDD is still running flawless. But I cannot format the SSD to get Lion on it?
Anythoughts? If I fix this, how can i bypass the kernel panic issue?
 
Joined
Mar 19, 2012
Messages
249
Motherboard
i3 Hp
CPU
i3
Graphics
3000
Mac
Classic Mac
Mobile Phone
Look up Gparted and run that to partition your drive, with hopefully more success. I would also unplug the SATA drive while installing on the SSD just to remove any problems.
 
Joined
Feb 23, 2011
Messages
49
Motherboard
Mountain Lion
CPU
3.06
Graphics
AMD HD 5670
Mac
Classic Mac
Mobile Phone
Well, I was able to format it using Windows, the normal way.. It is working NTFS and everything is fine.
When I format it in Mac OS X it gives me the same error, and goes back to unformatted state!

Besides, i didn't notice much speed difference, maybe because my motherboard only supports SATA 3 GB/s. The write speed is about 50 MB/s only, almost the same as my USB 2.0 HDD!

any thoughs?!
 
Joined
Jan 21, 2011
Messages
197
Motherboard
10.7.4 / Windows
CPU
Intel i7 2600K
Graphics
AMD 6870
Mac
Classic Mac
iMac, Power Mac
Mobile Phone
iOS
ZaYoOoD said:
Well, I was able to format it using Windows, the normal way.. It is working NTFS and everything is fine.
When I format it in Mac OS X it gives me the same error, and goes back to unformatted state!

Besides, i didn't notice much speed difference, maybe because my motherboard only supports SATA 3 GB/s. The write speed is about 50 MB/s only, almost the same as my USB 2.0 HDD!

any thoughs?!
I have a SATA 2 SSD and I get 70 MB/s write and like 250 MB/s read on Mac
 
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