Activate 1024x768 console

How to change the default Linux console screen resolution to 1024x768 (non-X)

kernel         /vmlinuz-2.6.22-3-amd64 root=/dev/md1 ro single
 * open /boot/grub/menu.lst with your favorite text editor.
 * move down to the lines starting with "kernel" like:


 * according to your original line, just append "vga=791" without quotes

kernel         /vmlinuz-2.6.22-3-amd64 root=/dev/md1 ro single vga=791
 * example:


 * save the file and quit your editor. reboot.