MacEnthusiast Posted July 6, 2011 Share Posted July 6, 2011 Hey Guys Just installed Lion on my Hackintosh. I have a Nvidia 7300GT currently with no QE/CI. I need to know how to change Lion to a 32 bit kernel so I can use QE/CI with my Nvidia card. How can I do this? I have already tried -x32 and arch=i386. Thanks Link to comment https://www.insanelymac.com/forum/topic/261617-how-to-change-lion-to-32-bit-kernel/ Share on other sites More sharing options...
grahamwho Posted July 6, 2011 Share Posted July 6, 2011 Hey there, unless something has changed in lion. arch=x86_64 Link to comment https://www.insanelymac.com/forum/topic/261617-how-to-change-lion-to-32-bit-kernel/#findComment-1709544 Share on other sites More sharing options...
fffeee Posted July 6, 2011 Share Posted July 6, 2011 Hey there, unless something has changed in lion. arch=x86_64 Try reading the OP. arch=i386 is the argument to pass to the kernel to tell it to boot in 32bit mode. OP: confirm your platform with `uname -a`, is it possible you are booting a 32bit kernel already? Link to comment https://www.insanelymac.com/forum/topic/261617-how-to-change-lion-to-32-bit-kernel/#findComment-1709782 Share on other sites More sharing options...
MacEnthusiast Posted July 6, 2011 Author Share Posted July 6, 2011 Thanks guys! I eventually figured everything out. My way of enabling 32 bit kernel in Lion was to add this to com.apple.boot.plist <key>arch</key> <string>i386</string> Now my 7300GT works with QE/CI and I have a perfect Hackintosh install. Man Lion is really nice! Link to comment https://www.insanelymac.com/forum/topic/261617-how-to-change-lion-to-32-bit-kernel/#findComment-1709842 Share on other sites More sharing options...
ifrit05 Posted July 6, 2011 Share Posted July 6, 2011 Well good to hear you got it working. But that is the same as booting with the arch=i386 flag, just a heads up. 1 Link to comment https://www.insanelymac.com/forum/topic/261617-how-to-change-lion-to-32-bit-kernel/#findComment-1709886 Share on other sites More sharing options...
fantomas Posted July 6, 2011 Share Posted July 6, 2011 Well good to hear you got it working. But that is the same as booting with the arch=i386 flag, just a heads up. on Lion , strangely it does not work like that ! only way is to use this on com.apple.boot.plist : <key>arch</key> <string>i386</string> Link to comment https://www.insanelymac.com/forum/topic/261617-how-to-change-lion-to-32-bit-kernel/#findComment-1710005 Share on other sites More sharing options...
mkMoSs Posted July 7, 2011 Share Posted July 7, 2011 on Lion , strangely it does not work like that ! only way is to use this on com.apple.boot.plist : <key>arch</key> <string>i386</string> Yes actually I confirm that too. Setting arch=i386 doesn't switch kernel to 32-bit, it still boots at 64-bit mode. Only this: <key>arch</key> <string>i386</string> works Link to comment https://www.insanelymac.com/forum/topic/261617-how-to-change-lion-to-32-bit-kernel/#findComment-1710379 Share on other sites More sharing options...
MacEnthusiast Posted July 7, 2011 Author Share Posted July 7, 2011 I also have a few people asking me how to avoid PCI Configuration Begin bug. Here's the kexts you need to replace in order for it to go away. Finally for QE/CI for 7300GT I found that Corevidia works best. Remember to boot into 32 bit kernel. AppleACPIPlatform.kext.zip IOPCIFamily.kext.zip CoreVidia_1.1.mpkg.zip Link to comment https://www.insanelymac.com/forum/topic/261617-how-to-change-lion-to-32-bit-kernel/#findComment-1710526 Share on other sites More sharing options...
MacEnthusiast Posted July 7, 2011 Author Share Posted July 7, 2011 @pinarek It is possible to boot in 32 bit mode with Lion GM as witnessed with my screenshot. Just edit com.apple.boot.plist as mentioned in above posts. Link to comment https://www.insanelymac.com/forum/topic/261617-how-to-change-lion-to-32-bit-kernel/#findComment-1710650 Share on other sites More sharing options...
gotmilk70 Posted July 12, 2011 Share Posted July 12, 2011 can confirm that the above method also boots lion in 32bit mode. Link to comment https://www.insanelymac.com/forum/topic/261617-how-to-change-lion-to-32-bit-kernel/#findComment-1713606 Share on other sites More sharing options...
AnssaienlyMac Posted March 2, 2012 Share Posted March 2, 2012 on Lion , strangely it does not work like that ! only way is to use this on com.apple.boot.plist : <key>arch</key> <string>i386</string> Hello there, Could you please tell me the location of com.apple.boot.plist ? I got one in my Bootable USB thumbdrive, it already has the 2 lines. and I modified the one in Library->preferences->SystemConfiguration .. I still can't boot to 32-bit mode :/ I have a Wifi Usb Dongle (ZyDas) and I couldn't get it to work , I looked everywhere, they said it can work in 32-bit mode only (driver is too old apparently). Thanks in Advance. P.S : if there's another way to make the Wifi Stick work , i'd Appreciate it THANKS AGAIN! Link to comment https://www.insanelymac.com/forum/topic/261617-how-to-change-lion-to-32-bit-kernel/#findComment-1802534 Share on other sites More sharing options...
AnssaienlyMac Posted March 2, 2012 Share Posted March 2, 2012 Never Mind, PROBLEM SOLVED!! Everything is working PERFECTLY NOW YUUUUUUUPPPPPPIIIII !!!! and i'm posting this through my Lion OS Link to comment https://www.insanelymac.com/forum/topic/261617-how-to-change-lion-to-32-bit-kernel/#findComment-1802572 Share on other sites More sharing options...
All Kand Posted March 13, 2012 Share Posted March 13, 2012 If you're using Chameleon bootloader you there's another plist file you're supposed to edit insteadt of com.apple.Boot.plist Link to comment https://www.insanelymac.com/forum/topic/261617-how-to-change-lion-to-32-bit-kernel/#findComment-1805456 Share on other sites More sharing options...
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