If I were you I'd first try the following:
It has been a long time since I've installed from either a cd or dvd so this mightn't be relevant to your installation dvd. When I boot from an installation usb at the first screen that comes up I can hit
Enter or enter a command that will boot up the installed system. For me I can use the following to boot into Slackware on my desktop from an installation usb.
Code:
huge.s root=/dev/sda2 rdinit= ro
It appears you are hanging at a line containing
nouveaufb so you may not be able to boot into an x-session but you may be able to boot into run level 1 as root by appending
linux single to the end of the boot directive like so:
Code:
huge.s root=/dev/sda2 rdinit= ro linux single
I am able to do that on this desktop.
If you can't do that from the dvd but have access to another linux system you could create a usb installer .... directions and image are found in the directory /usb-and-pxe-installers.
Hopefully that will get you to a point where you can set up grub either in an x session or cli.
May not be relevant to your rig, however, first partition on my desktop's first drive is a vfat efi partition and I install lilo using
liloconfig when I install Slackware.
Code:
/dev/sda1 /boot/efi vfat defaults 1 0