kimbrel Posted December 17, 2006 Share Posted December 17, 2006 I just installed JaS 10.4.8 on a Thinkpad T60 (Core Duo, ATi X1400, etc.). The install went fine, but now the machine won't boot. Booting in verbose mode shows the problem - it panics on loading the USB extensions... Couldn't alloc class "AppleUSBUHCI" kld(): Undefined symbols: __ZN24IOBufferMemoryDescriptor17getVirtualSegmentEmPm kld_load_from_memory() failed for module com.apple.driver.AppleUSBUHCI Failed to load extension com.apple.driver.AppleUSBUHCI and this message is repeated at least 3 times, possibly more (can't scroll up on a panicked kernel output). Any ideas? Link to comment https://www.insanelymac.com/forum/topic/36125-panic-at-boot-unable-to-load-kexts/ Share on other sites More sharing options...
Rammjet Posted December 17, 2006 Share Posted December 17, 2006 Try toggling some USB settings in BIOS - set legacy mode, turn USB off, etc. Link to comment https://www.insanelymac.com/forum/topic/36125-panic-at-boot-unable-to-load-kexts/#findComment-257069 Share on other sites More sharing options...
homer007 Posted December 17, 2006 Share Posted December 17, 2006 (edited) you will need to install 10.4.7 first than update to 10.4.8. Follow my guide here: this works for everyone who gets kernel panic after installing 10.4.8!!! UPGRADING TO 10.4.8 WITH NEW KERNEL 1: Boot into newly installed 10.4.7 system. Lets begin backing up files that you will need to replace back after 10.4.8 combo update. 2: sudo -s 3: mkdir /backup 4: cp -R /System/Library/Extensions/* /backup Leave Terminal open as you will need it again shortly. Download Intel 10.4.8 Update from here Mac 10.4.8 Combo Update 5: Run Apple 10.4.8 combo update - DO NOT REBOOT WHEN IT COMPLETES Wait until update completes - DO NOT REBOOT WHEN IT COMPLETES Now comes kernel choice and restoring important files that we just backed up 6: Now that combo update is finished, I suggest using a kernel with r2 support built in at least to help with first bootup post combo update. After you're up and running you can use decrypts if you want, and use a kernel without r2 support. Download the New Semthex beta 8 Kernel from here Semthex Beta 8 Kernel 7: Back to Terminal type mv /mach_kernel /mach_kernel.unpatched 8: cp /location/to/your/patched/mach_kernel /mach_kernel Download the required files to be copied from here Files to be copied 9: Copy this AppleSMBIOS.kext to /System/Library/Extensions. 10: Copy this AppleACPIPlatform.kext to /System/Library/Extensions. 11: Copy this AppleAPIC.kext to /System/Library/Extensions. 12: Copy this IOATAFamily.kext to /System/Library/Extensions. 13: Delete this IOACPIFamily.kext from /System/Library/Extensions. This Part is only for Dual Core Processors!! 14: edit your com.apple.Boot.plist (sudo nano /Library/Preferences/SystemConfiguration/com.apple.Boot.plist in Terminal) to reflect the following: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple$ <plist version="1.0"> <dict> <key>Kernel</key> <string>mach_kernel</string> <key>Kernel Flags</key> <string>cpus=1</string> <key>Quiet Boot</key> <string>No</string> <key>Timeout</key> <string>10</string> <key>Boot Graphics</key> <string>Yes</string> </dict> </plist> 15: Repair permissions with Disk Utility. 16: Reboot now (and pray). Edited December 17, 2006 by homer007 Link to comment https://www.insanelymac.com/forum/topic/36125-panic-at-boot-unable-to-load-kexts/#findComment-257073 Share on other sites More sharing options...
kimbrel Posted December 17, 2006 Author Share Posted December 17, 2006 Try toggling some USB settings in BIOS - set legacy mode, turn USB off, etc. Essentially the only USB setting available in my BIOS is to turn it off. And I'd kinda like to have working USB support since all of my media is on an external USB drive. you will need to install 10.4.7 first than update to 10.4.8. I have a DVD that offers a JaS 10.4.8 Combo Update, and I installed that along with a semthex kernel. You're saying I should do a fresh install of OSX off this DVD without the 10.4.8 update and then it'll start? Link to comment https://www.insanelymac.com/forum/topic/36125-panic-at-boot-unable-to-load-kexts/#findComment-257093 Share on other sites More sharing options...
Rammjet Posted December 17, 2006 Share Posted December 17, 2006 Essentially the only USB setting available in my BIOS is to turn it off. And I'd kinda like to have working USB support since all of my media is on an external USB drive. Yes, yes, yes, but if turning it off gets you booted one time, then you can work on the problem of why USB needs to be turned off. Link to comment https://www.insanelymac.com/forum/topic/36125-panic-at-boot-unable-to-load-kexts/#findComment-257099 Share on other sites More sharing options...
kimbrel Posted December 17, 2006 Author Share Posted December 17, 2006 Well, I went and looked, and the only USB option is to enable/disable BIOS support for booting from USB. Guess I'll give mr. homer007's method a shot. Expect a reply in an hour Link to comment https://www.insanelymac.com/forum/topic/36125-panic-at-boot-unable-to-load-kexts/#findComment-257121 Share on other sites More sharing options...
kimbrel Posted December 17, 2006 Author Share Posted December 17, 2006 Installed from the JaS disc without the 10.4.8 update but with the included semthex kernel and now it won't load AHCI (SATA) drivers. This is more than a little screwy if you ask me. Link to comment https://www.insanelymac.com/forum/topic/36125-panic-at-boot-unable-to-load-kexts/#findComment-257143 Share on other sites More sharing options...
Rammjet Posted December 18, 2006 Share Posted December 18, 2006 Without the 10.4.8 update, you are trying to run the Semthex kernel on 10.4.4. The update is what makes it 10.4.8. Link to comment https://www.insanelymac.com/forum/topic/36125-panic-at-boot-unable-to-load-kexts/#findComment-257174 Share on other sites More sharing options...
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