Slow down in guest ubuntu 10.04 console

Discussions about using Linux guests in VirtualBox.
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savgur
Posts: 7
Joined: 22. Jun 2010, 21:04
Primary OS: openSUSE
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Ubuntu 10.04

Slow down in guest ubuntu 10.04 console

Post by savgur »

Hi, I find some bug:
on my 32-bit opensuse 11.2 host with PUEL VirtualBox 3.2.4r62467 I run guest 32-bit ubuntu 10.04 in console(command line interface, cli), and it is slow down scrolling console, compering with same 32-bit debian guest console, for example when I run 'man' pages, or read file by 'less' or 'cat'.
Maybe it is ubuntu drivers bug or specification.
Settings for my ubuntu guest: http://pastebin.com/qm4rwju5
Have any ideas?
Perryg
Site Moderator
Posts: 34369
Joined: 6. Sep 2008, 22:55
Primary OS: Linux other
VBox Version: OSE self-compiled
Guest OSses: *NIX

Re: Slow down in guest ubuntu 10.04 console

Post by Perryg »

The slow drawing performance is because Ubuntu switch into VGA16 mode (for virtualization this is the worst graphics mode you can imagine) if no graphics card of Intel, AMD or nVidia is found.
You can ssh or rdp in and it is smokin fast
savgur
Posts: 7
Joined: 22. Jun 2010, 21:04
Primary OS: openSUSE
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Ubuntu 10.04

Re: Slow down in guest ubuntu 10.04 console

Post by savgur »

Ok, it is possible to turn off it switch to VGA16 mode, and work like in debian console?
Perryg
Site Moderator
Posts: 34369
Joined: 6. Sep 2008, 22:55
Primary OS: Linux other
VBox Version: OSE self-compiled
Guest OSses: *NIX

Re: Slow down in guest ubuntu 10.04 console

Post by Perryg »

I have not found a way to change the Ubuntu 10.04 to work differently yet. Used to be able to set the parameter in the boot menu but they have changed a lot of things that we used to be able to do.
savgur
Posts: 7
Joined: 22. Jun 2010, 21:04
Primary OS: openSUSE
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Ubuntu 10.04

Re: Slow down in guest ubuntu 10.04 console

Post by savgur »

Ok, thanks. I find some solution for this.
Perryg
Site Moderator
Posts: 34369
Joined: 6. Sep 2008, 22:55
Primary OS: Linux other
VBox Version: OSE self-compiled
Guest OSses: *NIX

Re: Slow down in guest ubuntu 10.04 console

Post by Perryg »

If you find a way please post it here. I am sure everyone that uses Ubuntu 10.04 Server would appreciate it.
Since I ssh into mine I don't see this problem but other that are using the CLI direct would.
savgur
Posts: 7
Joined: 22. Jun 2010, 21:04
Primary OS: openSUSE
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Ubuntu 10.04

Re: Slow down in guest ubuntu 10.04 console

Post by savgur »

Yes, sure if I find solution, I post it here.
savgur
Posts: 7
Joined: 22. Jun 2010, 21:04
Primary OS: openSUSE
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Ubuntu 10.04

Re: Slow down in guest ubuntu 10.04 console

Post by savgur »

savgur
Posts: 7
Joined: 22. Jun 2010, 21:04
Primary OS: openSUSE
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Ubuntu 10.04

Re: Slow down in guest ubuntu 10.04 console

Post by savgur »

I find one one more solution: http://ubuntuforums.org/showpost.php?p= ... stcount=10.
With this solution I have 1024x768 screen without slow-down scrolling like by default.
Try and enjoy this!
Perryg
Site Moderator
Posts: 34369
Joined: 6. Sep 2008, 22:55
Primary OS: Linux other
VBox Version: OSE self-compiled
Guest OSses: *NIX

Re: Slow down in guest ubuntu 10.04 console

Post by Perryg »

Very well done savgur. This will make a lot of people happy I am sure.
I have not tried the second one yet but the first one works well.
SimoneGianni
Posts: 9
Joined: 22. Oct 2010, 03:37
Primary OS: Mac OS X other
VBox Version: OSE other
Guest OSses: Ubuntu, WinXP

Re: Slow down in guest ubuntu 10.04 console

Post by SimoneGianni »

I can confirm http://ubuntuforums.org/showpost.php?p= ... stcount=10 works great, except that on step 6, if Ubuntu is the only OS (which usually is the case in VirtualbBox), you'll not find the file /boot/grub/menu.lst . Instead you'll have to modify /boot/grub/grub.cfg and find a line starting with "linux /boot/kernel.... " instead of "kernel /boot/....".
Cyberaw
Posts: 4
Joined: 29. Oct 2010, 17:08
Primary OS: MS Windows XP
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Ubuntu 10.04

Re: Slow down in guest ubuntu 10.04 console

Post by Cyberaw »

I tried the 2nd link first and it didn't work...
The 1st link worked for my setup (http://ubuntu-virginia.ubuntuforums.org ... ?t=1484385).
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