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Shell script that creates a Arch Linux image for the Raspberry Pi 2. Downloads the latest distribution from archlinuxarm.org and creates the flash filesystems including boot partition. Partitions are aligned for typical SD cards and ext filesystem tuned accordingly.
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#!/bin/sh -ex | |
losetup /dev/loop0 && exit 1 || true | |
image=arch-linux-$(date +%Y%m%d).img | |
wget -q -N http://archlinuxarm.org/os/ArchLinuxARM-rpi-2-latest.tar.gz | |
truncate -s 1G $image | |
losetup /dev/loop0 $image | |
parted -s /dev/loop0 mklabel msdos | |
parted -s /dev/loop0 unit s mkpart primary fat32 -- 1 65535 | |
parted -s /dev/loop0 set 1 boot on | |
parted -s /dev/loop0 unit s mkpart primary ext2 -- 65536 -1 | |
parted -s /dev/loop0 print | |
mkfs.vfat -I -n SYSTEM /dev/loop0p1 | |
mkfs.ext4 -F -L root -b 4096 -E stride=4,stripe_width=1024 /dev/loop0p2 | |
mkdir -p root | |
mount /dev/loop0p2 root | |
bsdtar xfz ArchLinuxARM-rpi-2-latest.tar.gz -C root | |
mv root/boot root/boot-temp | |
mkdir -p root/boot | |
mount /dev/loop0p1 root/boot | |
mv root/boot-temp/* root/boot/ | |
rm -rf root/boot-temp | |
sed -i "s/ defaults / defaults,noatime /" root/etc/fstab | |
umount root/boot root | |
losetup -d /dev/loop0 |
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#!/bin/sh -exu | |
dd if=arch-linux-*.img of=/dev/<blockdevice> status=progress | |
sync |
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I turned this into a CI/CD workflow: https://github.com/bcomnes/archlinux-arm-img with images releasing to the releases page: https://github.com/bcomnes/archlinux-arm-img/releases