<aside> 💡 Manually booting
Identify the boot partition
grub > ls
(hd0,gpt1) (hd0,gpt2) (hd0,gpt3)
Load the normal module (for configuration file), Linux module (for similarity), boot module (for finding grub.cfg) then load the configuration file
grub > insmod normal
grub > insmod linux
grub > insmod boot
grub > normal
Set root partition and load the kernel and initrd images
grub > root=(hd0,gpt3)
grub > linux /boot/vmlinuz-x.x.x-xx-generic root=/dev/sda3
grub > initrd /boot/initrd.img-x.x.x-xx-generic
grub > boot
Then you should reinstall grub
sudo grub-install /dev/sda
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