Howto install archlinuxarm raspberrypi5

download image

download archlinux-arm-aarch64 image:

wget http://os.archlinuxarm.org/os/ArchLinuxARM-rpi-aarch64-latest.tar.gz

chroot with qemu

use qemu-user-static to interpret the arm instructions in the chroot:

pacman -Sy qemu-user-static --noconfirm

copy the qemu-aarch64-static binary to the chroot:

cp /usr/bin/qemu-aarch64-static /mnt/temp/usr/bin

register the qemu-aarch64-static as an arm interpreter in the kernel:

echo ':aarch64:M::\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7:\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/bin/qemu-aarch64-static:' > /proc/sys/fs/binfmt_misc/register

script to mount image:

#!/bin/bash

if [ ! -d /mnt/temp ];
then
mkdir /mnt/temp
fi

kpartx -va $1 1> /tmp/part-names.txt

PART2=$(cat /tmp/part-names.txt | awk '{print $3}' | grep p2$)
PART1=$(cat /tmp/part-names.txt | awk '{print $3}' | grep p1$)
sleep 1
mount /dev/mapper/$PART2 /mnt/temp
mount /dev/mapper/$PART1 /mnt/temp/boot/
sleep 1
mount -o bind /dev /mnt/temp/dev
mount -o bind /dev/pts /mnt/temp/dev/pts
mount -o bind /proc /mnt/temp/proc
mount -o bind /sys /mnt/temp/sys
rm /tmp/part-names.txt
if [[ $1 == *[32]* ]]; then
mount -o bind ./pkg32 /mnt/temp/var/cache/pacman/pkg
fi
if [[ $1 == *[64]* ]]; then
mount -o bind ./pkg64 /mnt/temp/var/cache/pacman/pkg
fi

enter chroot using arch-chroot:

arch-chroot /mnt/temp

references

• https://github.com/mikkeloscar/binfmt-manager