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Failed to load R0 module /usr/lib/virtualbox/VMMR0.r0: World writable: '/usr/lib' (VERR_SUPLIB_WORLD_WRITABLE).
Failed to load VMMR0.r0 (VERR_SUPLIB_WORLD_WRITABLE).
Código Resultado:
NS_ERROR_FAILURE (0x80004005)
Componente:
ConsoleWrap
Interfaz:
IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

I try changing the permissions of usr/lb with chown and don't work.

Anybody can help me?
Thanks

cansinismo wrote:I try changing the permissions of usr/lb with chown and don't work.

Changed the permissions to what? As you clearly saw, the /usr/lib has got to be non-writable by everyone. You do not mention your host (omission) but for a Ubuntu and a Fedora, the /usr and the /usr/lib permissions look like that (very close actually):

socratis@VB-Ubuntu:~$ ls -al /usr
total 124
drwxr-xr-x  11 root root  4096 Jul 19  2016 .
drwxr-xr-x  23 root root  4096 Jan 19 22:12 ..

socratis@VB-Ubuntu:~$ ls -al /usr/lib
total 840
drwxr-xr-x 143 root root   4096 Jan 19 23:42 .
drwxr-xr-x  11 root root   4096 Jul 19  2016 ..

[socratis@VB-Fedora ~]$ ls -al /usr/
total 224
drwxr-xr-x.  12 root root   4096 Nov 15 23:27 .
dr-xr-xr-x.  18 root root   4096 Nov 15 23:32 ..

[socratis@VB-Fedora ~]$ ls -al /usr/lib
total 204
dr-xr-xr-x. 46 root root  4096 Feb  8 19:54 .
drwxr-xr-x. 12 root root  4096 Nov 15 23:27 ..

The permissions are: Any idea...??

cansinismo wrote:Any idea...??

What do you mean any idea? It there! In plain sight!

cansinismo wrote:

ls -al /usr
drwxrwxrwx 202 root root  53248 feb 21 13:20 lib

Your /usr/lib directory is group/world writable. But besides that, you have a much, much bigger issue:

cansinismo wrote:

ls -al /usr
drwxr-xr-x  12 root root   4096 sep  2 12:05 .
drwxrwxrwx  28 root root   4096 feb 21 11:12 ..

Your root directory is group/everyone writable!

Really, that's the problem in the end!?
There isn't solution??
Can I fix the permissions or must re-install ubuntu?

Have you tried searching for "Ubuntu reset permissions to default"?

The solution was simple: sudo chmod 755 /usr/lib

Thank you for your special form of make me learn: give a man a fish, and you feed him for a day; teach a man to fish, and you feed him for life.

I can not wait less than Socratis