TimK1764 Posted October 11, 2011 Share Posted October 11, 2011 PLEASE READ: Hey Dell owners, I think I may of found a solution when we try to install snow leopard retail out internal drives don't show up, you need to downgrade your BIOS to the first version (here for 9200.) I downgraded mine because I couldn't boot from USB after some googling I found it to be a BIOS problem but read earlier versions worked, so I went with the earliest I could find, USB booting is now working so I decided to give this guide another go just to see and my internal drives now show up during the install when BIOS is set to Raid auto / ata. Ok I'm not 100% sure if its just me getting lucky or the BIOS fixes the drives not showing up! Please someone confirm it! Install Guide Step 1: Downgrade your BIOS to (1.0.3 for 9200.) I'm unsure if its the same for the XPS 410?. Step 2: Get [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] and follow this GUIDE to install snow leopard, (update to 10.6.8 with combo update & use [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] but follow Step 3 before rebooting) hopefully the BIOS downgrade makes your drives appear in the installer like it did for me. Step 3: [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url], things to choose 1, [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url], 2, System Utilities, 3, Under Kexts & Misc, ElliotForceLegacyRTC, IOUSBFamilyRollback. 4, Under OSx86 Software, Kext Utility. DON'T REBOOT YET! Step 4: Goto /Extra/Extension and delete AHCI_3rdParty_SATA.kext & JMicron36xATA.kext. Step 5: Install kexts attached below using Kext utility, just select all and drop on the app icon. (Possibly drop in /Extra/Extensions after as well) Step 6: Repair Disk Permissions in Disk Utillity Step: 7 Reboot and enjoy Snow Leopard 10.6.8. Kexts.zip Link to comment Share on other sites More sharing options...
TimK1764 Posted October 12, 2011 Author Share Posted October 12, 2011 BUMP: Added a quick guide to help anyone with a dell 9200 / XPS 410 get onto Snow Leopard 10.6.8. Link to comment Share on other sites More sharing options...
TimK1764 Posted October 13, 2011 Author Share Posted October 13, 2011 Can confirm updating to Lion 10.7.3 following this guide works! Link to comment Share on other sites More sharing options...
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