I tried to restore Grub using Life-CD, but some error popped up during the process. Now I want to boot Linux manually. I enter the following commands:

grub>

ls

(hd0) (hd0,gpt1) (hd0,gpt2) (hd0,gpt3)

set root=(hd0,1)

linux (hd0,2)/vmlinuz-6.15.0-20-generic root=/dev/sda1 ro

initrd (hd0,2)/initrd.img-6.15.0-20-generic

boot

A lot of letters fly by. As a result, I get the BusyBox command line.

What am I doing wrong?