After the installation ends and it restarts the PC I get this error, found on a forum that can be ignored but it doesn't seems so...
#SQUASHFS failed to read block / installation failed
kind apex
So wtf I just discovered that pressing f3 makes this boot correctly
What? My boot order is ok
lofty shuttle
So wtf I just discovered that pressing f3 makes this boot correctly
I'm glad you solved it, but it's quite bizarre that if I press F3 it starts
full oyster
What? My boot order is ok
what you showed in beginning, squashfs error, is nothing, just the live medium drive pulled out.
what you showed at 0:51 is the Live mode grub menu (you know it's live because the OEM install option)
regarding the beeping, it may be due to a missing boot flag on the hard drive
if you can boot either the final install, or the live system, do so and show results of sudo parted -l from terminal.