VirtualBox GuestAdditions

LukasH · 11-30-2012, 08:51 AM

Hello everyone,

I followed this explanation on how to install the GuestAdditions on a Ubuntu Server VM using VirtualBox: http://mylinuxramblings.wordpress.co...-server-10-04/

But when I do the following step:

sudo mount /dev/cdrom /media/cdrom

I get the following error: “mount: special device /dev/cdrom does not exist”. Has anyone encountered this before?

I tried ls -l /dev/cdrom to see what actually is in there, and it says

Code:

foundation less SharedFolder Vagrant Vagrant.pub

Habitual · 11-30-2012, 10:01 AM

http://www.virtualbox.org/manual/ch04.html#idp12082384

LukasH · 12-04-2012, 03:48 AM

That does not help me at all, since I did not find a soluton to my error.

Escpecially, as this Manual (which I have read before) is not specified for Ubuntu Server.

So please, if anyone has more ideas than posting a manual link, help!

Habitual · 12-04-2012, 09:30 AM

Quote:

That does not help me at all, since I did not find a soluton to my error.
...is not specified for Ubuntu Server.

SO WHAT? You haven't even told us what build of "Ubuntu Server".

"my car doesn't start"
"what kind of car is it?"
"blue".

Your opening post is missing some key information, such as:

What OS/build does the Host have installed?
What is the Virtual Guest OS/build?
What version of Virtualbox is installed on the Host?
How did you install virtualbox?

Quote:

So please, if anyone has more ideas than posting a manual link, help!

Even a broke watch is right twice a day.

Maybe if you can provide those answers, someone here can help you learn to help yourself.

LukasH · 12-04-2012, 09:40 AM

Though that post is harsh, I will try to get ofc the information that is wanted.

1. Ubuntu 12.04 LTS (image received from this place)
2. Ubuntu 12.04.1, Precise Pangolin, server version (image received from this place)
3. Up-to-date (which is 4.2.4)
4. By a manual download of the .deb-file matching my host system on the official oracle page

Hope that helps?

TobiSGD · 12-04-2012, 10:41 AM

Try it again with the device sr0 instead of cdrom:

Code:

sudo mount /dev/sr0 /mnt/cdrom

LukasH · 12-10-2012, 03:54 AM

I get a "mount: no medium found on /dev/sr0" on that one

Anymore ideas?

LukasH · 12-10-2012, 04:24 AM

Okay, so here is another update. It worked with /dev/sr0, after I deleted the virtual cdrom-device and rebuilt another one.

The next thing that happened now is the Error_1.png you can find attached.
The errorlog you can find on Error_log.png.

I will continue working on that and post my results in here, but I do appreciate any form of help!

LukasH · 12-10-2012, 04:51 AM

Okay, here is the solution for the header issue:

Basically it all comes down to a

Code:

sudo apt-get install linux-headers-generic --fix-missing

and a (though I don't know if that is really required)

Code:

sudo grub-update

(Note: Depending on the distro you have take care if it's GRUB2 or an older version)

___

And here comes the edit: That did not work. Though it updated the headers, it still says the The "headers for the current running kernel were not found" and fails. Wuuuargh...
___

Edit #2:

That should help a lot.