Ibanezbass Posted August 31, 2012 Share Posted August 31, 2012 So I've now tried Lion and ML. ML gives me a USBF error that says the EHCI cannot take control from the BIOS. Then I get the infamous "Still waiting for root device". My hardware: HP Envy 6t-1000 Core i5 2467m HD 3000 + Radeon HD 7670m 6 GB DDR3 1600 (@1333) 2 USB 3.0 + 1 USB 2.0 What I've tried: Flags: cpus=1 (required; kernel panic without) GraphicsEnabler=no (required; freezes without) -f both npci All PCIRootUID options UseKernelCache=no USBBusFix=yes Tried a different IOUSBFamily/IOPCIFamily Tried to unplug and replug the Flash Drive. Out of ideas... Anyone have an idea? Thanks PS. I have NO changable bios options. I am using the USB 2.0 port. Edit: Seems that I can use the arch=i386 in the Lion installer to get it to load. So, why am I not loading the USB kext in 64 bit arch? Link to comment Share on other sites More sharing options...
Pillendreher Posted August 31, 2012 Share Posted August 31, 2012 Did you try all USB 2.0 ports? On my Lenovo L530, only the very first USB 2.0 port did its job; on every other 2.0 port, I got the "still waiting for root device" message Link to comment Share on other sites More sharing options...
marsuss Posted August 31, 2012 Share Posted August 31, 2012 Open terminal and type; cp -pr /Volumes/USBNAME/System/Library/Extensions/*ATA* /Volumes/MLPARTITIONNAME/System/Library/Extensions/. chown -R root:wheel /Volumes/MLPARTITIONNAME/System/Library/Extensions/*ATA* chmod -R 755 /Volumes/MLPARTITIONNAME/System/Library/Extensions/*ATA* Restart with -f Link to comment Share on other sites More sharing options...
Pillendreher Posted August 31, 2012 Share Posted August 31, 2012 How can you do that when you can't enter the installation utility? As far as I'm concerned, I couldn't open terminal because the still waiting for root device message appeared before the partitions could be "loaded" and therefore before the installation utility could star. Link to comment Share on other sites More sharing options...
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