My bad on the location, think my clipboard did that, argh, but yea you found the right spot.gamjaevel wrote:When i check the grub.cfg I do not find any line with the command GRUB_CMDLINE_LINUX_DEFAULT= ... Can i add it manually?
however i can find this line in /etc/default/grub and currently it looks like this : GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset"
What exactly are you doing with the disc to boot your installation? Have you tried just editing the grub line when grub comes up? I'm a bit confused I guess with how the disc is used to boot your installation.