[Solved] Ubuntu screen on virtualbox on windows host

[rrocafort]

Hello

I have a simple question. I installed virtual box on windows vista home premium. I am running ubuntu as guest OS. the screen is very small. when I go to full mode, it does not occupy the whole screen. the ubuntu interface does not change size,leaving me a black screen and ubuntu in the middle. the software keeps saying that adjust to 32 bit color, but I don't know how.
How can I make the ubuntu screen large enough so that i occupies the whole screen so that it looks like I am running ubuntu as the main OS?

Thanks

[stefan.becker]

Please read User Manual, Topic "Guest Additions".

[rrocafort]

Hello

Thanks for responding quickly
I am running Windows vista as Host and ubuntu as guest OS. I read all the user manual, and was unable to install the guest additions. it gives me a mesage that unable to proceed needs administrative privileges. I have tried administration log in windows, permissions etc.. I am still unable to install
Can anyone tell me how to do it?

Thanks

[Dest]

guest additions get installed to your guest, not your host.

You need to install them on your ubuntu system

[rrocafort]

Hello
Thanks for reply

I was able to install guest additions, I to enable root as user and had no problems

The screen resolution went from 800x640 to 1024 x 768. How can I get it to 1280 x 800?

thanks

[Sasquatch]

You can get that resolution if you go to full screen and the Auto-Resize is on. When you change the size of the Guest Window, it will resize automatically to fit the window. So you will get custom resolutions with that setup.

[rrocafort]

THANK YOU!!!!!

I can't thank you enough, for helping me to find a solution. it was so simple, and I was complicating myself to the point of having a heart attack. I am new in ubuntu, and trying to learn everything I can. I don't work today. and I have been all day on the internet searching for a solution since this morning.

Thank you

God Bless!!