Reinstalling Alpine Linux on a Lighthouse Instance

wget https://mirrors.cqu.edu.cn/archlinux/iso/latest/archlinux-2022.02.01-x86_64.iso -O /archlinux.iso

wget https://mirrors.tuna.tsinghua.edu.cn/alpine/v3.15/releases/x86_64/alpine-minirootfs-3.15.0-x86_64.tar.gz -O /alpine.tar.gz

menuentry "Archlinux Live (x86_64)" {
     insmod iso9660
     set isofile=/archlinux.iso
     loopback lo0 ${isofile}
     linux (lo0)/arch/boot/x86_64/vmlinuz-linux img_dev=/dev/vda1 img_loop=${isofile} earlymodules=loop
     initrd (lo0)/arch/boot/x86_64/initramfs-linux.img
}

mount -o rw,remount /dev/vda1
mv /run/archiso/img_dev/archlinux.iso /tmp/
mv /run/archiso/img_dev/alpine.tar.gz /tmp/
rm -rf /run/archiso/img_devpas/*
mount /dev/vda1 /mnt
mv /tmp/archlinux.iso /mnt/
mv /tmp/alpine.tar.gz /mnt/
tar -xf /mnt/alpine.tar.gz -C /mnt

mount -t proc /proc /mnt/proc
mount --rbind --make-rslave /dev /mnt/dev
mount --rbind --make-rslave /sys /mnt/sys
cp -L /etc/resolv.conf /mnt/etc/resolv.conf
chroot /mnt /bin/sh

source /etc/profile
cat > /etc/apk/repositories << EOF
https://mirrors.tuna.tsinghua.edu.cn/alpine/v3.15/main
https://mirrors.tuna.tsinghua.edu.cn/alpine/v3.15/community
EOF

apk update
apk upgrade
apk add alpine-base

apk add grub-bios
echo 'GRUB_CMDLINE_LINUX="rootfstype=ext4"' >> /etc/default/grub

grub-install /dev/vda
apk add linux-firmware-none
apk add linux-virt

apk add e2fsprogs

echo "/dev/vda1 / ext4 defaults 0 1" > /etc/fstab

cat > /etc/network/interfaces << EOF
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp
EOF

for i in bootmisc hostname hwclock loadkmap loopback modules networking swap sysctl syslog urandom; do
	ln -s /etc/init.d/$i /etc/runlevels/boot/
done

for i in devfs dmesg hwdrivers mdev; do
	ln -s /etc/init.d/$i /etc/runlevels/sysinit/
done

for i in acpid sshd; do
	ln -s /etc/init.d/$i /etc/runlevels/default/
done

for i in killprocs mount-ro savecache; do
	ln -s /etc/init.d/$i /etc/runlevels/shutdown/
done

passwd