Q: Reboot fail after installing El Capitan help!!

Dear GS from NL

In the list in App Store is OS X Yosemite. Can't I download that program and install it? I come back then for El Capitan, when the problem with the reboot is solved.

Fred

Hi guys, I am still struggling with this. I got some help pointing out what kext-files could be causing the problems, thank you GSfromNL. But I can't mange to delete them, I have tried several options but always get "No such file or directory". The name of my HD is Macintosh HD so it must be something else that I am missing?

-bash-3.2# cd /Volumes/Macintosh HD/System/Library/Extensions/

-bash: cd: /Volumes/Macintosh: No such file or directory

-bash-3.2# rm -r EltimaAsync.kext

rm: EltimaAsync.kext/Contents: No such file or directory

-bash-3.2# rm -r JMicronATA.kext

rm: JMicronATA.kext/Contents: No such file or directory

-bash-3.2# rm -r ssuddrv.kext

rm: ssuddrv.kext/Contents: No such file or directory

-bash-3.2# cd ../Caches

-bash: cd: ../Caches: No such file or directory

-bash-3.2# rm -r com.apple.kext.caches

rm: com.apple.kext.caches: No such file or directory

-bash-3.2# nvram -d boot-args

Does anyone has an idea why, please?

Cheers,

Pierre

Believe it is impossible to install older OSX versions over newer. Only if you do a clean install. But your problem cannot be so difficult to fix...? Keep posting!

Hi PWA65: You have a space between Mackintosh and HD in the disk-name.

So you must use either "cd /Volumes/Macintosh HD" within quotes

or use the slash: cd /Volumes/Macintosh\ HD

Thanks' GSfromNL, very observant and helpful.

I did a re-install of the OS and then it started OK (like first time until you restarted). And then I went in manually and deleted the kext-files and ran a check in Terminal to see that they where really gone. But I haven't restarted yet...

Thank you, it works!

same problem here. after i install el capital it just look good. but after i shut down and turn on a few times, it cannot reboot. stuck on  the progress bar  with no progress. i tried to reinstall the system a few times, but same problem happen. my laptop is macbook pro retina 2014

Hi,

Yes it seems as a few of us has/had this problem.

You can solve it in two ways I recon, either in SafeMode using the Terminal window or after a re-install when it's working (before restart) manually remove the files that causes the problems. And the files causing the problem are kext-files. This is individual depending on what 3rd party software installed on your computer. For me it was these files: EltimaAsync.kext, JMicronATA.kext, ssuddrv.kext and VideoGlide.kext (I don't really know if it was all of them or just some but it worked after deleting them).

Either way you chose it's a good thing to use Terminal to get the list of kext-files to identify and then also check that they are gone after you have tracked them down and deleted (or just moved them). This is the script to use in Terminal for list of kext-files:

cd "/Volumes/Macintosh HD" ; ls -1 Library/Extensions/ ; find Library/Application\ Support -iname *.kext ; find Library/Filesystems -iname *.kext ; find System/Library/Extensions -ctime +2d -depth 2

Cheers and good luck,

Pierre

Hi, so let's make the point of this issue, I seems to be just for few users a small perceptual, apple haven't resale update or any important announcement... So at moment we all standing alone here trying to helping each other... After reading all those interesting post we can come up that the problem come from third part software ... I want to give my contribute.

After Installing El Capitan I never had any problem with restart (I mean I had one ore two restart only) before installing this software

MAMP PRO

So If anyone who is occurring with this problem has installed this software please let know.

I try to uninstall and restart but problem still there (mybe the uninstaller don't remove all script)

Thank you

Mark

Just to say thanks as you describe exactly my situation, the steps taken, and the point that I am at.

Hopefully a solution shall be found

BIG BIG THANKS !!!! IT WORKS !!!!

Thanks GSfromNL I just followed your steps and removed the following files:

EltimaAsync.kext

JMicronATA.kext

Reboot and off it goes :-)

I have the computer in 'safe mode'. I found 'terminal', but I cannot open it.

This worked for me. Awesome! Thanks!

But there a caveat, for the system profile command to give accurate results, it must be booted from the bad EC disk. The one that works before reboot. I did a clean install and then a migration thinking I would accomplish the same. It did not. However, since it gave me a working copy with all the date, I created the list file per your instructions. After the reboot failed, I rebooted in recovery mode, ran the rest of the process (painful since I had to do it from command line, no command find), rebooted and voila! Everything works. Well, I did loose a few things like AirParrot but those I can fix later.

Thanks again.

This is temp solutions, but work! thanks a lot! simple way to fix the bug issues haha

Thank you GSfromNL,

This totally fixed my problem (on Mac mini from late 2014, 4G RAM).

I didn't actually remove all the unsigned kext files (heck there was even an unsigned Apple one) but just the ones which looked like they might well cause problems:

• Anything unsigned from Blackberry or RIM
• JMicronATA
• LivescribeSmartpen

Anything from HP or Samsung.

By the way, the other thing I did before all this was remove any unnecessary peripherals and remove Parallels from the Mac - thereby trying to keep it pute.

Cheers,

J