Arch Linux ARM image for Raspberry Pi

Currently neither Raspberry Pi nor the Arch Linux ARM website offer an image ready for use of Arch Linux for Raspberry Pi, and because of that I created this small step by steps on how to do it on Linux.

Tutorial

Download the last release image for your Pi (ARM).

Create a image file of 2gb:

$ dd if=/dev/zero of=arch.img bs=1M count=1850

Partition the image file¹:
```
$ fdisk arch.img
```
1. Type o. This will clear out any partitions on the drive.
2. Type p to list partitions. There should be no partitions left.
3. Type n, then p for primary, 1 for the first partition on the drive, press ENTER to accept the default first sector, then type +100M for the last sector.
4. Type t, then c to set the first partition to type W95 FAT32 (LBA).
5. Type n, then p for primary, 2 for the second partition on the drive, and then press ENTER twice to accept the default first and last sector.
6. Write the partition table and exit by typing w.
Check the partitions created:
```
$ fdisk -l arch.img
```

Mount the boot partition²:

$ losetup -v -f -o $((2048 * 512)) --sizelimit 104857600 arch.img

Mount the root partition:

$ losetup -v -f -o $((206848 * 512)) --sizelimit 1833959424 arch.img

Format and mount boot partition

$ mkfs.vfat /dev/loop0
$ mkdir boot
$ mount /dev/loop0 boot

Format and mount root partition

$ mkfs.ext4 /dev/loop1
$ mkdir root
$ mount /dev/loop1 root

Become root:
```
$ sudo su -
```

Extract image files:

$ bsdtar -xpf ArchLinuxARM-rpi-latest.tar.gz -C root
$ sync

Copy boot files:
```
$ mv root/boot/* boot
$ sync
```
Unmount partitions:
```
$ umount boot root
$ rmdir boot root
```
Back to your user:
```
$ exit
```

Detach partitions:

$ losetup -d /dev/loop0
$ losetup -d /dev/loop1

Your image is ready to be used!