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Apple Upgrade without affecting drivers

Sotirios Papakonstantinou

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I'm not sure if this has been asked before, but I couldn't put the correct key words to find it. Please give me the thread's link.


I have taken an old HP Pavilion notebook, and a spare disk and decided to install Mac OS X 10.6 to see how compatibility goes and experiment. A common problem is that when I upgrade from 10.6.3 to 10.6.8 with the combo upgrade, my LAN and WLAN cards stop working. No matter what drivers (kexts) I tried, I couldn't make them work properly again and the only solution is to format and reinstall Mac IS X 10.6.3 from iAtkos DVD.


The question: is there any way to backup the working drivers and make the combo upgrade? Then I could restore them and the LAN works as it should. Alternatively, can I select which components are being upgraded, so I make sure kexts aren't?


Thank you in advance.


PS: My specs: HP Pavilion zv6000 series, AMD Athlon 64 3200+ 2GHz (I use legacy_kernel to boot), ATI Radeon Xpress 200M chipset, ATI Mobility Radeon Xpress 200 128MB VGA (basic display, but I don't care), Audio ATI SB400 AC'97 (no audio yet), Reatlek RTL8139/810x LAN, Broadcom BCM4318 WLAN, TI PCIxx21 Flashmedia (not working), TI TSB43AB22 IEEE 1394.

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for your LAN (RTL8139), you need to add AppleRTL8139Ethernet.kext in System/Library/Extensions/IONetworkingFamily.kext/Contents/Plugins


for your WLAN (BCM4318), you need to add AppleAirPortBrcm4311.kext in System/Library/Extensions/IO80211Family.kext/Contents/Plugins


repair the permissions and rebuild the kache





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