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 drive?

This option requires you to create and format partitions before running archboot, only partitions id will be prompted.

Partitioning scheme:

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

🚨 UEFI boot partition requires EFI partition type (ef00) with FAT32 filesystem 🚨

More information on partitioning is available here