meistermeister Posted January 28, 2012 Share Posted January 28, 2012 Hello, after updating to 10.7.2 (from working 10.7.0) I get the Still waiting for root device error. I cannot get past it, even with using different startup parameters (-f, -x, etc). I am getting past this error, when using UseKernelCache=Yes, but I can't complete the booting. Some posts suggests that I should rebuild the kernel cache. But how can I access the hard disk? Should I use some Linux live CDs? Linux can't write to journaled HFS+ volumes, so that won't work. The following is suggested, but how to do it? To boot OS X 10.7.2 successfully, do the following: 1. Transfer ALL kexts in /Extra/Extensions/ to /System/Library/Extensions/, leaving /Extra/Extensions/ empty. 2. Modify your org.chameleon.Boot.plist file to include <key>UseKernelCache</key> <string>Yes</string> 3. Reset /System/Library/Extensions/ kext ownership and permissions and force kernelcache re-creation via Terminal commands: sudo chown -R root:wheel /System/Library/Extensions/ sudo chmod -R 755 /System/Library/Extensions/ sudo touch /System/Library/Extensions/ 4. For good measure, manually delete the kernelcache and other cache files in /System/Library/Caches/com.apple.kext.caches/Startup/ 5. Reboot into OS X 10.7.2.........and use Disk Utility to repair system permissions...... Link to comment Share on other sites More sharing options...
alaskantraveler Posted January 29, 2012 Share Posted January 29, 2012 try to boot into Single-User mode. -s at the prompt. If it goes you can go through and change things. And do you want to delete the kernel cache, or the Extension caches? I don't know about the kernel cache, but the extension caches can be done by deleting /Extra/Extensions.mkext Type rm -R /Extra/Extensions.mkext. and the cache at /System/Library/Caches/com.apple.kext.caches Type rm -R /System/Library/Caches/com.apple.kext.caches which will cause them to be rebuilt at the next boot. type -v -f at the boot prompt. 3 Link to comment Share on other sites More sharing options...
meistermeister Posted January 29, 2012 Author Share Posted January 29, 2012 Hello, thank you for the answer! I tried both -s and -v -f, but I get stuck. How is it possible to enter terminal commands without a working installation? I tried to boot from the installation DVD and start the terminal. This works, but if I try to change something on the HDD, the commands fail with the message "read only file system". It is also strange, that the terminal doesn't recognize sudo.. Link to comment Share on other sites More sharing options...
meistermeister Posted January 29, 2012 Author Share Posted January 29, 2012 OK, I am now able to reach the command prompt: I booted the HDD installation with -v -s UserKernelCache=Yes But every time I try to run a command (e.g. a simple one like mkdir /test/) it says "Read only file system". No change if i use sudo (e.g. sudo mkdir /test/). If i try su, it states "Segmentation fault: 11". How can I make changes to the disk? // Edit: Forget to run /sbin/mount -uw / Now i can make changes to filesystem. I will try to rebuild the cache now. Link to comment Share on other sites More sharing options...
meistermeister Posted January 29, 2012 Author Share Posted January 29, 2012 After deleting the old cache files, I can't even get to the command prompt via -v -s (with and without UserKernelCache=Yes). I tried it with rd=disk0, rd=disk0s1, rd=disk0s2, rd=disk0s3, rd=disk1, rd=disk1s1, rd=disk1s2, rd=disk1s3 but no success... I always get the still waiting for root device error.. Link to comment Share on other sites More sharing options...
Hugo_bee Posted January 29, 2012 Share Posted January 29, 2012 10.7.2 seems to have problems.. I tried to build myself the mkext.. no way to boot without KP Link to comment Share on other sites More sharing options...
alaskantraveler Posted January 29, 2012 Share Posted January 29, 2012 how about grabbing a mkext from another installation like SnowLeo and sticking that in where the other used to be? Will that and -f trick it into starting? And maybe the caches files (even empty ones)? Link to comment Share on other sites More sharing options...
neomatrix125 Posted January 30, 2012 Share Posted January 30, 2012 I doubt grabbing and mkext from snowleo will work as the binary in the file will be from different kext's which will probably result in a KP. I suggest taking a picture of the screen that you are left with and the contents of your /Extra folder, info can only help! Also try using -F with a capital F because in some documentation it's used a cap F and if I know anything about UNIX it's cap sensitive! Also try booting using a CD or DVD because it gives the bootloader on the hard drive the finger! Get HackBoot 6.2 here http://www.osx86.net/view/1462-boot_cd_for_lion.html try burning it and you might get it to boot... If it does... Install [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] and make sure you have a DSDT and all the appropriate kexts installed. Then try and rebuild the cache... Link to comment Share on other sites More sharing options...
meistermeister Posted January 31, 2012 Author Share Posted January 31, 2012 I didn't get it to work, even with various boot CDs/DVDs.. So I reinstalled 10.7.0 and updated to 10.7.1. This is working. I added the following kexts/extras: /Extra: org.chameleon.Boot.plist SMBIOS.plist /Extra/Extensions: ACPIMonitor.kext EvOreboot.kext FakeSMC.kext IntelCPUMonitor.kext IntelThermal.kext JMicron36xSATA.kext NullCPUPowerManagement.kext /System/Library/Extensions: nForceLAN.0.64.5.kext Didn't try to update to 10.7.2 so far.. Link to comment Share on other sites More sharing options...
neomatrix125 Posted February 1, 2012 Share Posted February 1, 2012 Try experimenting with what kext's are essential to loading your system, for example only load ones that prevent from KP's. Then if you have another Hard drive or something try installing Lion on that and updating and try loading the bare essentials. 1 Link to comment Share on other sites More sharing options...
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