How to access GRUB 2 in a computer with only Ubuntu?
I want to start the Recovery mode on an Ubuntu-only machine. The problem is that machine seems to skip grub and boot directly into ubuntu (as it is the only OS installed.
How can I boot into the recovery mode (whether it is through GRUB or not)
According to this, holding the Shift key while booting should bring up the GRUB menu. If the Shift doesn't work, repeatedly pressing the Esc may work.
If you enter BIOS (normally F2) first and then exit choosing EXIT WITHOUT SAVING or similar, you will be prompted with the GRUB menu.