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Old 08-18-2016, 06:46 PM   #1
iFunction
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Centos on Virtualbox


Hi there,

I've been battling with this for some time now, but is there a way to get better screen resolution than 1024 x 768.

I've tried to install the guest additions, but I am suspecting they have not installed. Can someone point me in the right directions as to what to do here please, getting really lost.

The problem seems to be dkms package that does not want to install, is there a way to get this to work please.

kind regards
iFunc

Last edited by iFunction; 08-18-2016 at 06:47 PM.
 
Old 08-18-2016, 07:00 PM   #2
frankbell
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I'm afraid I don't have an answer, and I can't duplicate the problem.

When I enter my CentOS VM and go to Settings-->Display, I have a number of options available. I tested several (not all) and the ones I tested worked. I have done nothing to tweak the display settings. I'm running VB v. 5.1.4 installed from the *.run AMD64 installation script from the virtualbox website on Slackware --Current.

I do not have Guest Additions installed to CentOS. You can see a screen shot at this link.

http://www.pineviewfarm.net/weblog/w...VM_display.jpg
 
Old 08-18-2016, 07:20 PM   #3
iFunction
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Wow, no I have nothing like that going on, maybe I should try to reinstall virtual box then
 
Old 08-18-2016, 09:36 PM   #4
frankbell
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Frankly, I have no idea what might be going on.

All I know is that I can't duplicate the problem.

I doubt it's related, what version of VB do you have installed?

Last edited by frankbell; 08-18-2016 at 09:37 PM.
 
Old 08-19-2016, 03:04 PM   #5
erik2282
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https://www.howtoforge.com/installin..._phpvirtualbox

What OS is your guest and host? Did you install guest additions on guest or host? supposed to be in guest.
 
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Old 08-20-2016, 04:02 AM   #6
iFunction
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So this is still a problem, does anyone who has come across this know how to fix it? I can't be the only person to have had this problem.
 
Old 08-20-2016, 08:51 AM   #7
snowday
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Here are some clear and official instructions to install the Guest Additions in your CentOS "guest" operating system:

https://www.virtualbox.org/manual/ch04.html#idm1948
 
Old 08-20-2016, 01:39 PM   #8
iFunction
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WooHoo, Finally after, 14 installations, I finally figured it out. The following solution refers to the download of the CentOS7everything installation specifically, as that is the one I have installed on VirtualBox 5

So basically when it comes to the actual installation, at the beginning, there is a window full of configuration of which most of it is done as default for you but you still have to configure the Installation Destination. Well above that is the Installation Source, and to the right, is Software Selection. For my installation I picked Gnome Desktop, though I don't think it is that part that matters, but what is needed in the right hand pane once your installation of choice is picked, then checking "Development Tools" will make the installation of Guest additions a lot easier as it was the installation of the Kernel Development tools that was causing the problem. Now I am not sure which specific package was causing the problem, but all in all, I did not have enough experience to install all that was needed, and as a result, the Guest Additions would not fully install. Taking all this from the ISO file solved the problem.

HOWEVER: currently, there is an issue with 3D graphics acceleration also, so it is important not to have 3D acceleration checked in the VirtualBox settings. This will cause CentOS to crash on reboot after the Guest Additions have been installed with no recovery. Without that, though, I finally have a full screen Virtual installation of CentOS7 on VirtualBox

Thanks all for your help and input.

EDIT: (due to incorrect date citing). Here is the link https://www.virtualbox.org/ticket/13332. However if you switch off 3D acceleration and then reboot, it does indeed work fine.

Regards
iFunK

Last edited by iFunction; 08-20-2016 at 02:57 PM.
 
  


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