Custom Partitioning

If your plan is to install Arch Linux on more than one disk or if you don't want to format an entire drive, you have to select NO at Do you wish to install Arch Linux on a dedicated disk? wich will just ask for drive id. This option requires you to create and format partitions before running archboot.

Partitioning scheme:

  SYSTEM_PARTITION......: /mnt            (required)
  BOOT_PARTITION........: /mnt/boot       (required)
  SWAP_PARTITION........: no mountpoint   (optional)
  HOME_PARTITION........: /mnt/home       (optional)

Do not forget, UEFI boot requires fat32 filesystem. More information on partitioning is available here.