Can't load vboxnetflt.ko after update virtualbox to 4.2.6

[Rusty Nejdl]

On 2013-01-10 00:45, Alexey V. Panfilov wrote:
> Hi.
> 
> After update virtualbox from 4.1.22 to 4.2.6 vboxnetflt module can't 
> load:
> 
> [work-book]# /usr/local/etc/rc.d/vboxnet start
> /usr/local/etc/rc.d/vboxnet: WARNING: Can't load vboxnetflt module.
> 
> And /var/log/messages contains
> 
> Jan 10 10:36:06 work-book kernel: link_elf: symbol ng_free_item 
> undefined
> 
> 
> With 4.1.22 all works fine.
> 
> Some additional info:
> 
> FreeBSD work-book.lehis.ru 8.3-STABLE FreeBSD 8.3-STABLE #4: Thu Nov  
> 8
> 14:38:26 MSK 2012
> root at work-book.lehis.ru:/usr/obj/usr/src/sys/BOOK-8-STABLE  i386
> 
> Build options for virtualbox-ose-kmod:
> 
> ===> The following configuration options are available for
> virtualbox-ose-kmod-4.2.6:
>      DEBUG=on: Debug symbols, additional logs and assertions
>      VIMAGE=off: VIMAGE virtual networking support
> 
> Please, say direction for resolve this issue.
> 
> Thanks.

The general reason this occurs is because of a mismatch of your kernel 
and your kernel module.  Try rebuilding your kernel and rebooting and it 
will likely load as that has worked for me in the past and I did not 
have problems loading this time.  However, I am running on 9.1 amd64 so 
I am on a different platform for you so I haven't tried to duplicate.

Rusty Nejdl