NewFangler Posted March 7, 2013 Share Posted March 7, 2013 Thanks Hervé - You may have saved me from an expensive mistake! I once saw a poster in an ambulance station, it said "Ask Stupid Questions - Its Better To Ask Stupid Questions Than Make Stupid Mistakes!" 1 Quote Link to comment Share on other sites More sharing options...
roror Posted April 11, 2013 Share Posted April 11, 2013 Another with a dell precision dual xeon. I am getting a similar error. First it gave an error "Should have 6 cores but found 5". I thought let's use only one core per cpu by setting the option in bios. Then the error was "should have 1 thread but only found 2". stack traced to AppleACPIPlatform driver. Any help will be deeply appreciated. Thanks. Quote Link to comment Share on other sites More sharing options...
roror Posted April 11, 2013 Share Posted April 11, 2013 And similar error when I tried installing Lion instead of Mountain Lion. Quote Link to comment Share on other sites More sharing options...
Administrators Hervé Posted April 11, 2013 Administrators Share Posted April 11, 2013 'tried the "cpus=1" boot option? Quote Link to comment Share on other sites More sharing options...
roror Posted April 11, 2013 Share Posted April 11, 2013 I don't think I tried that with myHack. Did try it with unifail earlier though. So, now when I booted myHack usb with cpus=1 I got the following new message : see screenshot. "Invalid mac_magic" ? Very similar result with cpus=2 as well. Edit 1: And yes. it continued to print a few more error quickly and rebooted. Edit 2: Just realized that the screenshot attached is just the first page of the output. Not very useful. But, let me know if I can post any other info. Quote Link to comment Share on other sites More sharing options...
Administrators Hervé Posted April 11, 2013 Administrators Share Posted April 11, 2013 It may well be that the Chameleon version integrated to myHack is a bit too ancient for these Xeon CPUs. They may not be recognized... You could try to install a more recent Cham version to the OS X installer to see if it helps (anything from r2168 to r2189 for instance). Also, try and boot with option: "GeneratePStates=No" and/or "GenerateCStates=No". Quote Link to comment Share on other sites More sharing options...
roror Posted April 11, 2013 Share Posted April 11, 2013 The two boot options didn't help. Where can I get a recent build of chameleon? http://forge.voodooprojects.org/p/chameleon/downloads/ has r2109. http://forge.voodooprojects.org/p/chameleon/source/tree/HEAD/ seems to have the more recent version, but Do I have to check out and compile? Thanks Quote Link to comment Share on other sites More sharing options...
Administrators Hervé Posted April 11, 2013 Administrators Share Posted April 11, 2013 Try this one (extract and place at root level). boot(r2170).zip Quote Link to comment Share on other sites More sharing options...
roror Posted April 11, 2013 Share Posted April 11, 2013 Thanks. No invalid mac magic error now, but, a similar error as before afterwards. I'll have to record what it printed and watch it frame by frame to figure out the error. Quote Link to comment Share on other sites More sharing options...
roror Posted April 12, 2013 Share Posted April 12, 2013 After reading https://osxlatitude.com/index.php?/topic/1370-dell-precision-t7500-and-osx/?hl=%2Bprecision+%2Bt7500 I am wondering I need a patched DSDT file? Yesterday I tried extracting the DSDT file using the DSDT editor and then compiled it. But, not sure if it was done right. I am no DSDT patching expert. There were few compile errors and warnings and I had no idea. That DSDT file didn't help me get to the install screen either. I can extract and post the DSDT file if that'll help. The machine has a working linux installation on it now. Thanks again. Quote Link to comment Share on other sites More sharing options...
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