Hello,
I was having problem of changing the resolution of the console of Ubuntu 12.10 Server (64bit) version, running on Oracle Virtualbox environment.
First I installed Virtualbox guest additions using the following command.
#apt-get install virtualbox-guest-additions-iso
But I still couldn't change increase the resolution of the server console. Finally I tried the below method which was successful for me. I hope it will help you also.
Step 01:
Edit the file /etc/default/grub using your favorite text editor. Here I am using "vi"
#sudo vi /etc/default/grub
......
......
# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
......
......
In the above file uncomment the line "#GRUB_GFXMODE=640x480"
You can increase the resolution by changing the values 640x480 to 800x600 or to 1024x768
Then save the file and exit.
Step 02:
Run the below command to upgrade the grub.
#sudo update-grub
Step 03:
Restart the Ubuntu server.
Note: Please note that if you host environment and/or the Virtualbox installation graphic configurations does not support specified level resolution the above steps won't work. Then try to change the resolution to a commonly used values.
I was having problem of changing the resolution of the console of Ubuntu 12.10 Server (64bit) version, running on Oracle Virtualbox environment.
First I installed Virtualbox guest additions using the following command.
#apt-get install virtualbox-guest-additions-iso
But I still couldn't change increase the resolution of the server console. Finally I tried the below method which was successful for me. I hope it will help you also.
Step 01:
Edit the file /etc/default/grub using your favorite text editor. Here I am using "vi"
#sudo vi /etc/default/grub
......
......
# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
......
......
In the above file uncomment the line "#GRUB_GFXMODE=640x480"
You can increase the resolution by changing the values 640x480 to 800x600 or to 1024x768
Then save the file and exit.
Step 02:
Run the below command to upgrade the grub.
#sudo update-grub
Step 03:
Restart the Ubuntu server.
Note: Please note that if you host environment and/or the Virtualbox installation graphic configurations does not support specified level resolution the above steps won't work. Then try to change the resolution to a commonly used values.