Upgrading 10.8 to 10.10 with dual-boot 7 already in place...

torque2k said:

I have a Hackintosh built already, running with two OS drives (SSD for 10.8.2, HDD for Windows 7), and it's currently using Chimera as a boot picker and MultiBeast was used to set it up. I've already had problems getting it to update to 10.8.5 (just won't boot after), so I've been sitting on 10.8.2 as long as possible.

New video card is now needed, so I'm installing a GTX 960 4GB to replace my old GTX 260 512MB. This is on a Gigabyte Z77 UP5 TH board, which other than the 10.8.5 update has been rock solid.

I'm going to take the plunge and upgrade to 10.10.4. My thought is that it's time to start clean, so I'll use Carbon Copy Cloner to clone the SSD 10.8 install to a spare HDD (USB3 connected), then flush the SSD and install 10.10 fresh.

However, I'm certain this is going to screw up my ability to dual-boot to the other drive running Win 7. I don't want to upgrade that to 8 or 10 any time soon.

When installing 10.10, then, do I want to make the jump to Clover? From what I can tell, the GTX 960 shouldn't have any problems when using MultiBeast. Clover was never an option when I first built my Hackintosh a few years ago, so I'm a little lost on this.

I don't want to auto-boot to Windows, I'd rather have a picker like Chimera is set up now, where it defaults in 10 seconds to booting to OS X, or I can hit a hit and force it to Windows (again, on a seperate HDD).

Thanks for any insight.

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Going Bald said:

Upgrading OS X from 10.8.2 to 10.10.4 will have absolutely no effect on Win7 drive unless you leave it connected and accidentally select it to be formatted for OS X.
Disconnect the Win7 drive, Install OS X, Run MultiBeast and get OS X booting from SSD.
Then shutdown, reconnect the Win7 drive and boot to BIOS. Make the OS X drive first in HDD boot order, save&exit and continue boot.

Select OS to boot from at the Chimera selection screen just as you did before.

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torque2k said:

Thanks for the quick response! Just to clarify, are you suggesting installing 10.10 over my current 10.8, or formatting my 10.8 to erase it and installing 10.10 clean? I was worried about simply upgrading "in place" because of the newer video card, and had thought I might need to do a clean 10.10 and use Migration Assistant (or worst case a hand migration) to get my system back to normal...

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