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El Capitan won't Boot after update

I installed El Capitan and it was booting fine. Then I installed the latest update and after the restart, the Mac loads the Apple logo and then screen goes white and it just freezes there. I tried restarting holding shift to log into safe mode and it remains white. I've even held down command and R to get the recovery mode to load. I see are the boot options but when I select one, I just goes into a white screen.

iMac 24", Mac OS X (10.6.2)

Posted on Oct 4, 2015 11:30 AM

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247 replies

Oct 8, 2015 1:16 AM in response to JFPP

I have the same problem. For the time being and not having a solution available from / provided by Apple (why????) the only thing we can do it to not shut down. But why was this failure not fount in the beta tests? Did nobody ever shut down the Mac? Now apparently many thousands of Apple customers have this problem. Seems I am back were I was before I switched to Apple: Windows horror again!


The alternative (I think) is: shut down; start up with cmd+R until the Apple logo appears; use Time Machine to switch back to an earlier OS.

Oct 8, 2015 5:56 AM in response to Joe Winke

Hello all, I just started the Upgrade to El Capitan again. And it's unbelievable, it worked without any problems. Perhaps because of having just daytime in Germany. So I don't have to switch off neither any programs more the fridge or any thing else. Simply starting the download, nothing else.

It was like in elder times with Lion, Mavericks or something else. 🙂🙂


Perhaps they have fired the guy in duty ( maybe he worked with VW too ).

Have a nice new trial and hopefully it will work.

Jens

Oct 8, 2015 8:53 AM in response to Joe Winke

Still having the same issue.


I've tried:


  • touch /System/Library/Caches (error says “Read-olny file system”)
  • touch /System/Library/Extensions and followed steps by Carlos
  • Could't find EltimaAsync.kext or any other file like it on terminal anywhere on my system
  • Reset the NVRAM
  • Change Volume name from Macintosh HD to Samsung SSD
  • Repair Disk on Recovery Mode (result = drive it’s OK)
  • Reinstall OSX El Capitan (several times)
  • Restarting Imac without any USB pluged (and Iphone OFF)


The only thing i haven’t tried is the solution posted by RusFox because it sound a little scary…any comments?

Need help!!!

Oct 8, 2015 10:45 AM in response to fjullian

The possible solution that I previously posted doesn't require you to modify the volume name. Don't change anything. Just replace Macintosh\ HD by your system volume name in the touch command.

For example, my system drive name is "Lua". The command to input in Terminal would be:


touch /Volumes/Lua/System/Library/Extensions


The solution by RusFox tries to move supposedly incompatible third party extensions to another folder to be ignored by MacOS. You may or may not have these extensions installed. Same goes for the removal of the Eltima extension.


I believe that there is something wrong with the new system Installer and assume it is not rebuilding the extensions cache correctly.

In order to speed-up the startup process the Mac builds an Extensions cache file based on installed kext files. If you add or remove Extensions (.kext files) the cache needs to be rebuilt. The system should identify incoherent cache and rebuild it on startup.


Therefore, I changed the modification date of the Extensions folder with the touch utility. This is an indication for the MacOS that the cache may not match the actual contents Extensions folder and force a cache rebuild.

This worked for me, and a few more users 🙂

Oct 8, 2015 9:20 PM in response to Joe Winke

I've tried everything posted, finally give up and erase my Macintosh HD Volume on recovery disk, re-install OSX El Capitan and now after installed, when booting keep restarting continuosly in a loop, no apps installed, no nothing and still doesn't work...got to be a joke...

I've start recovery disk again:

  • tried to find the Altima(whetever).kext on /Volumes/Macinstosh\ HD/Library/Extensions (not there)
  • touch /Volumes/Macinstosh\ HD/Library/Extensions without any luck


RUN OUT OF IDEAS...APPLE LET ME DOWN...BIG TIME...


El Capitan won't Boot after update

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