I installed El Capitab Beta 4 but my MacBook Air does not boot. It will show the Apple Logo and then nothing happens. Ive done the NVRAM and SMC resets a couple of times but that does not help. Later I was able to do a Safe Mode boot and successfully but I still cannot complete the normal boot. Any suggestions other than to re-install El Capitan from the beginning?
That's great Pierre - The problem is the VBox kexts.
In Terminal again (from Safe Mode) you need to copy-paste the following command:
sudo rm -Rf /Library/Extensions/*VBox*
Then boot normally.
Hi Pierre,
In Safe mode, please open the Terminal App (Applications/Utilities/ folder) and copy-paste the following commands in:
Then please copy-paste the output of those two commands to your reply
Please also test to see if you can get into Recovery Mode (hold cmd+R after you switch on your Mac until you see the progress bar)
Max.
PK-MacBook-Air:~ peterkarneef$ ls -1 /Library/Extensions
ACS6x.kext
ATTOCelerityFC8.kext
ATTOExpressSASHBA2.kext
ATTOExpressSASRAID2.kext
ArcMSR.kext
CalDigitHDProDrv.kext
HighPointIOP.kext
HighPointRR.kext
PromiseSTEX.kext
SoftRAID.kext
SophosNetworkInterceptor.kext
SophosOnAccessInterceptor.kext
VBoxDrv.kext
VBoxNetAdp.kext
VBoxNetFlt.kext
VBoxUSB.kext
VirtualPCNetworking1040.kext
hp_io_enabler_compound.kext
PK-MacBook-Air:~ peterkarneef$
PK-MacBook-Air:~ peterkarneef$ ls -1 /Library/Application Support/VirtualBox
ls: /Library/Application: No such file or directory
ls: Support/VirtualBox: No such file or directory
PK-MacBook-Air:~ peterkarneef$
That's great Pierre - The problem is the VBox kexts.
In Terminal again (from Safe Mode) you need to copy-paste the following command:
sudo rm -Rf /Library/Extensions/*VBox*
Then boot normally.
Thanks Max. That seems to have fixed it. Does removing VBox effect anything?
No - they are old kexts left behind from an old install of VirtualBox.
Glad it's sorted for you 🙂
I had the same problem on my early 2011 mbp. After I did sudo on my sandisk ssd, my mac crashed after sleep and couldn't find the volume anymore. My logic board is fine. Another drive is bootable.
This worked perfectly. Thank you.
