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trifle

macrumors newbie
Original poster
Jun 17, 2019
3
0
Hardware:
iMac 6,1 24", A1200, manufactured after 23-Jan-2007
2.1 GHz Core2 Duo T7300
Nvidia GeForce 7300GT

Hardware upgrades:
Cloned 250 GB disk to 640 GB disk (using Linux dd)
Upgraded memory to 2x2GB PC5300 DDR2 RAM

Software upgrades:
OSX 10.6.2 -> 10.6.8

Reading:
https://forums.macrumors.com/threads/os-x-el-capitan-on-unsupported-macs.1889851/
https://forums.macrumors.com/threads/os-x-el-capitan-on-unsupported-macs.1889851/
https://forums.macrumors.com/threads/os-x-el-capitan-on-unsupported-macs.1889851/


Next steps:

Purchased El Capitan, installed it
Downloaded MacPostFactor+2.0.1+Release.dmg
Downloaded Macosxbootloader v3.1 from piker-alpha.github.io


Should I stop now or upgrade from USB into a second partition?
 

Niekw

macrumors newbie
Jul 12, 2019
7
12
I have the same machine, I haven’t put El Capitan on it since the graphics card does not support hardware acceleration, rendering the machine virtually unusable.

Mountain lion works on it like a charm, and is the latest OS I would recommend for this setup.
 
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trifle

macrumors newbie
Original poster
Jun 17, 2019
3
0
Apple AppStore refuses to download Mountain Lion. At option boot, the system refuses to install from a USB that was created from an image downloaded from a MacBookPro.
If you have a recipe or suggestions for altering a Mountain Lion install image (plist editing, perhaps?) I would very much appreciate a link to the 'how-to'.
Best, - trifle
 
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