How do I get to the grub menu to select an older kernel?

[rocket77]

I need to roll back Zorin to an older kernel. I have LVM (encryption) set up. How do I get a grub menu so I can choose an older kernel? Every time I enter my LVM passphrase, it takes to the login regardless of what I press (shift key or escape key).

[freshjeff]

Zorin and nvidia drivers

It is very easy. And if it does not work out, just boot to grub menu > Advanced Options and revert to the earlier kernel by selecting it from the list. sudo add-apt-repository ppa:tuxinvader/jammy-mainline sudo apt update && sudo apt install linux-generic-6.12 To undo: sudo apt remove --purge linux-generic-6.12 sudo add-apt-repository --remove ppa:tuxinvader/jammy-mainline

From the grub menu, go to advanced options and from there you can select an older kernel from the list.

[Aravisian]

Boot into Zorin normally, then open terminal and run:

sudo nano /etc/default/grub

Move to this line: GRUB_TIMEOUT_STYLE=hidden and change the option of "hidden to "menu:"
GRUB_TIMEOUT_STYLE=menu

Ensure the timeout is set to a non-zero number. I will recommend a ten full seconds:
GRUB_TIMEOUT=10

Tap ctl+o to overwrite, then enter to save the current configuration. Tap ctl+x to exit the editor.
The terminal will revert to normal. Now you must run

sudo update-grub

Reboot and test if you can access grub menu and roll back your kernel.
If you can and you need to stay on the older kernel:

[HOW TO] set an older kernel to default boot

You may need to use an earlier kernel than the current kernel used by Zorin. This method allows you to set the kernel that you will boot into by default. To set the new kernel to default: Boot into the kernel you wish to be Saved. Open terminal and run: sudo nano /etc/default/grub Change GRUB_DEFAULT=0 to GRUB_DEFAULT=saved Hit enter to drop down a line. Add GRUB_SAVEDEFAULT=true ctrl+x to exit, then the y key to say yes to save, then the enter key to save as current configuration. Ru…