Fixing the new Ubuntu grub / VGA console.

I use Ubuntu on various servers; unfortunatly Ubuntu is increasingly aimed more at a consumer desktop audience, and it tries to do things like boot with a pretty, high resolution spash screen, hide the grub screen, etc. This does not work at all well for a server - it fails with the monitors on datacenter crash carts, it fails with many KVMs, DRACs, etc. 

In order to get back to a more sane console, edit /etc/defaults/grub and make the beginning look like: 

GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="nosplash xvga=640x480"

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