How to fix ubuntu 12.04 desktop Error (gfxmode)

If an error occurs at boot time on ubuntu 12.04, with a message like the following:

“unknown command ‘gfxmode’. Pressing any key continues”

Sollution :

1. You must erase or add the pound symbol (#) before the line ‘gfxmode \$linux_gfx_mode’.
   

   dnd@riyaniezt:~$ sudo -i
   [sudo] password for dnd:
   root@riyaniezt:~#  gedit /etc/grub.d/proxifiedScripts/linux

   

2. After your save file linux conf, update grub with the command
   

   root@riyaniezt:~# update-grub

3. After the update is complete, reboot your system
   

   root@riyaniezt:~# reboot

* … Good Luck ! … *