Make grub menu readable on high-resolution screens
When grub loads on my work laptop, a DELL XPS 17 9710, the font is tiny and practically unreadable.
You can change the font of this screen.
To find the available resolutions on your machine, boot into the grub
menu and press
C to enter console mode. Then type
for the list of available resolutions and choose one.
I went with
640x480, which meant I only had to uncomment the
sudo update-grub to save the change. Reboot and you should
be able to read the screen.