grub2 – Can’t access grub menu no matter what I try | Ubuntu 22.04 | EFI boot

I wanna access the grub menu so I can play around with kernel parameters and have them be temporary per boot.

My system is EFI so I tried holding Esc at boot. When I do, it gets frozen at the Lenovo logo. I’ve also tried setting the following in /etc/default/grub…

GRUB_DEFAULT=10
GRUB_TIMEOUT_STYLE=menu
GRUB_TIMEOUT=10

…and running sudo update-grub. That makes the system get stuck at the Lenovo logo for 10 seconds before booting with the Ubuntu logo like normal.

It seems like the Lenovo logo is preventing the grub menu from showing. My laptop is a Thinkpad T440p. How do I get to my grub menu?

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