virtualbox.org

I have windows 8 with a virtualbox running biolinux 7(ubuntu 12.04) and a version running a qiime partition (qiime. org /install /virtual_box.html). Currently I am mostly using the biolinux. Now my biolinux can't mount anything anymore and my qiime version works fine. I used the biolinux earlier today and accepted some software updates from ubuntu. Now it doesn't work anymore. I tried reinstalling Guestadditions 4.2.12 and after that 4.2.13-85720 and 4.2.10 (sudo ./VirtualboxLinuxGuestAdditions.run)
After trying that most of my guest additions including screen don't work anymore.

This is the error i get trying to mount my shared folders (has been workign for a months)

sudo mount -t vboxsf IRgene /home/bas/Desktop/sharedfolder

/sbin/mount.vboxsf: mounting failed with the error: No such device

I even tried reinstalling virtualbox 4.2.12 but i guess ist more a problem with ubuntu....

"Windows Guests" is not the correct forum for your question, which clearly relates to a Linux guest. Moving you to "Linux Guests".

After trying that most of my guest additions including screen don't work anymore.

And neither will shared folders. Something is missing here.

Post /var/log/vboxadd-install.log (as an attachment)

The problem started with just my shared folders being unable to mount. After e trying to reinstall VGuest additions did everything else it does stop working... Ormore precise; No full screen anymore.

On the guest, open a terminal and run the following command as su / sudo

/etc/init.d/vboxadd setup

Watch and read carefully for anything that looks like an error and post the results here. A screen shot will work as (an attachment) if it is in English.

sudo /etc/init.d/vboxadd setup [ 9:22AM]
Removing existing VirtualBox DKMS kernel modules ...done.
Removing existing VirtualBox non-DKMS kernel modules ...done.
Building the VirtualBox Guest Additions kernel modules ...done.
Doing non-kernel setup of the Guest Additions ...done.
Starting the VirtualBox Guest Additions ...done.

I rebooted and everything works again.....
THanks!!!
So what does this function really do?

It recompiles the guest additions modules when the kernel changes and you don't have DKMS installed.
Better write it down.