skyswimmer Posted February 19, 2017 Share Posted February 19, 2017 Hello again all at Osx latitude. I have a new problem booting, I connected an external hard disk and when ejecting there was an error "can't eject disk". Then when restarting my hackbook it's booting to black screen, even witwith safe mode. I'm using Yosemite and I've looked up the various errors in verbose to find solutions, some point to system disk having a corrupt table but im not sure. Please see my screenshots to help me understand what's going on with my system, I really need to do some work on my hackbook today. I'm away from home and it's the only computer I have to use. Thanks for reading Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted February 19, 2017 Moderators Share Posted February 19, 2017 Would help if you put your system's specs in your signature so we don't have to keep guessing. Looks like it's trying to load the nvidia graphics card. Do you have Optimus enabled or disabled? Try both to see if it loads. Link to comment Share on other sites More sharing options...
skyswimmer Posted February 20, 2017 Author Share Posted February 20, 2017 @ Jake Lo, updated signature , thought I had that already , my bad . Optimus has always been disabled but I tried to boot with it enabled but still no boot, see screenshot 6 for error, booted again with Optimus disabled as it was before and I've got different errors to the ones I originally posted in this topic. I seem to be getting errors opening that kext that troubles me before "can't open cf bundle RTL8192SU8.KEXt screenshot 7. Should I rebuild cache and repair permissions again ? Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted February 20, 2017 Administrators Share Posted February 20, 2017 never hurts to rebuild cache. Link to comment Share on other sites More sharing options...
skyswimmer Posted February 20, 2017 Author Share Posted February 20, 2017 OK then I'll do that and see if it helps Link to comment Share on other sites More sharing options...
skyswimmer Posted February 20, 2017 Author Share Posted February 20, 2017 @ BronXTeck I did a repair permissions & rebuild kernel cache from single user mode (I have no USB boot drive ) with no success. I got errors as before. As you'll see in my screenshot I got errors "invalid signature" on many kexts along with "can't open cf bundle for S/L/E/*kext" Then I tried the repair and rebuild CMD again but with the last line of the CMD to -f -update volume / and got some different errors as you can see from screenshots. Alot of "*.kext/ is in hash exception list" along with many invalid signature's for kexts, finishing with "bash/etc/RC.server no such file or directory" And I always have an error "boot cache size is larger than physical memory" Apologies for bad format of my post I'm uploading and writing this from my phone. Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted February 21, 2017 Administrators Share Posted February 21, 2017 is SIP (System Integrity Protection) Disabled? Link to comment Share on other sites More sharing options...
skyswimmer Posted March 3, 2017 Author Share Posted March 3, 2017 Apologies for extremely late reply! Its been one of those weeks After repeated attempts i got it. At first i couldnt disable SIP from terminal from single user mode. I kept on getting errors, so i tried to have some luck booting to desktop with safe mode, and after some time i got it, disabled SIP from Terminal & the system has been booting fine since. Thanks for your input, as always its much appreciated, and as always OSX Latitude community provides valuable support. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 4, 2017 Moderators Share Posted March 4, 2017 That can be done from Clover Option during boot too. Link to comment Share on other sites More sharing options...
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