Failed to open a session after upgrade to El capitan

Discussions about using Mac OS X guests (on Apple hardware) in VirtualBox.

Failed to open a session after upgrade to El capitan

Postby DexterLiu » 20. May 2016, 06:59

After I upgraded my OS to El capitan yesterday, I can't open a session.
The detailed the error message is as followed, Please help me.

Result Code:
NS_ERROR_FAILURE (0x80004005)
Component:
Machine
Interface:
IMachine

Kernel driver not installed (rc=-1908)

Make sure the kernel module has been loaded successfully.
DexterLiu
 
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Re: Failed to open a session after upgrade to El capitan

Postby socratis » 20. May 2016, 07:20

Try to re-install VirtualBox.
If you obfuscate any information requested, I will obfuscate my response. These are virtual UUIDs, not real ones.
Do NOT reply with the "QUOTE" button, please use the "POST REPLY", at the bottom of the form.
socratis
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Guest OSses: Win(*>98), Linux*, OSX>10.5

Re: Failed to open a session after upgrade to El capitan

Postby DexterLiu » 20. May 2016, 15:50

Thanks, but it means all my previous data are gone ?
DexterLiu
 
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Re: Failed to open a session after upgrade to El capitan

Postby socratis » 20. May 2016, 16:07

No it doesn't. Data is one thing. A program that uses that data is another. Even in OSX upgrades you don't lose your data.
If you obfuscate any information requested, I will obfuscate my response. These are virtual UUIDs, not real ones.
Do NOT reply with the "QUOTE" button, please use the "POST REPLY", at the bottom of the form.
socratis
Site Moderator
 
Posts: 16755
Joined: 22. Oct 2010, 11:03
Location: Greece
Primary OS: Mac OS X other
VBox Version: PUEL
Guest OSses: Win(*>98), Linux*, OSX>10.5

Re: Failed to open a session after upgrade to El capitan

Postby DexterLiu » 20. May 2016, 21:56

However, I try to re-install my original version-4.3.24 of virtualbox, it ends with unsuccessful installation.
Do I need to re-install the latest version ?

Appreciated
DexterLiu
 
Posts: 4
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Re: Failed to open a session after upgrade to El capitan

Postby socratis » 20. May 2016, 22:55

Oh dear, you were on 4.3.24! Oops, I didn't realize it (not that you told me ;) ).

Yes, you should definitely go with the latest and greatest (5.0.20 as of this writing). El Capitan is not even a year old (2015-09-30) and the closest VirtualBox version that came after that was 5.0.6 (2015-10-02). After each release there were more and more El Capitan fixes. So, definitely 5.0.20.

BTW, which OSX version did you upgrade from, if you don't mind me asking?
If you obfuscate any information requested, I will obfuscate my response. These are virtual UUIDs, not real ones.
Do NOT reply with the "QUOTE" button, please use the "POST REPLY", at the bottom of the form.
socratis
Site Moderator
 
Posts: 16755
Joined: 22. Oct 2010, 11:03
Location: Greece
Primary OS: Mac OS X other
VBox Version: PUEL
Guest OSses: Win(*>98), Linux*, OSX>10.5

Re: Failed to open a session after upgrade to El capitan

Postby DexterLiu » 20. May 2016, 23:24

It works, thanks a lot.
The OS I upgraded from is some version of Yosemite, sorry I can't remember.
DexterLiu
 
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