For those who think the new Arch Install Scripts are no longer the Arch Way, here are the original install instructions of Arch Linux 0.1 published in March 2002.
ARCH LINUX #VERSION#
SHORT & SWEET INSTALL INSTRUCTIONS
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1. Make your swap/root partitions
# fdisk /dev/discs/disc0/disc
2. Make your target filesystems
# mkswap /dev/discs/disc0/partX
# mkreiserfs /dev/discs/disc0/partY
3. Activate your swap partition
# swapon /dev/discs/disc0/partX
4. Mount your target root filesystem under /mnt
# mount /dev/discs/disc0/partX /mnt
5. Initialize the pacman database
# mkdir -p /mnt/var/lib/pacman
# touch /mnt/var/lib/pacman/pacman.db
6. Add the filesystem package from /arch/pkg/filesystem-0.X-Y.tar.gz
# cd /arch/pkg
# pacman --add -r /mnt filesystem-0.X-Y.tar.gz
7. Mount any other data partitions you may have created
# mount /dev/discs/disc0/partX /mnt/home
# mount /dev/discs/disc0/partY /mnt/usr
8. Install some base packages
# cd /arch
# ./installworld /mnt
9. Uncompress the linux source to /mnt/usr/src
# cd /mnt/usr/src && tar zxvf /arch/linux-2.4.XX.tar.gz
10. Mount a dev and proc under your new system and chroot
# mount -t devfs none /mnt/dev
# mount -t proc none /mnt/proc
# chroot /mnt /bin/bash
11. Build & install your new kernel from /usr/src/linux
NOTE: make sure you ask for "/dev file system support" and
"Automatically mount at boot", since we use DevFS.
12. Install a lilo bootloader
# vi /etc/lilo.conf
# lilo
13. Edit settings
# vi /etc/rc.conf
# vi /etc/resolv.conf
# vi /etc/fstab
# vi /etc/modules.conf (if needed)
14. Exit your chroot shell
# exit
15. Reboot!
16. Verify success and install any additional packages you want.
# pacman -A /mnt/cd/arch/pkg/whatever-1.1-1.pkg.tar.gz