Script for installing xanmod on Pop!_OS

xanmod-install.sh

#!/bin/bash

set -e

for field in $(cat /proc/cmdline); do
    if [[ "${field}" = root=* ]]; then
    	UUID=$(echo $field | awk -F= '{print $3}')
    	break
    fi
done

if test -z ${UUID}; then
    echo "failed to find UUID of root"
    exit 1
fi

cd /tmp
wget "https://dl.xanmod.org/xanmod-repository.deb"
sudo dpkg -i "xanmod-repository.deb"

sudo apt update
sudo apt install linux-xanmod -y

KERNEL="$(ls /boot | grep -E 'vmlinuz.*xanmod' | sort -r | head -1)"
INITRD="$(ls /boot | grep -E 'initrd.*xanmod' | sort -r | head -1)"

sudo mkdir -p "/boot/efi/EFI/xanmod/"

sudo cp "/boot/${KERNEL}" "/boot/efi/EFI/xanmod/vmlinuz.efi"
sudo cp "/boot/${INITRD}" "/boot/efi/EFI/xanmod/initrd.img"

echo "title Pop!_OS (XanMod)
linux /EFI/xanmod/vmlinuz.efi
initrd /EFI/xanmod/initrd.img
options root=UUID=${UUID} ro quiet loglevel=0 systemd.show_status=false splash" \
    | sudo tee "/boot/efi/loader/entries/Pop_OS-xanmod.conf"