Remember to install dosfstools and ntfs-3g. Note that the data partition may need to be the first partition on the device, as Windows assumes that there can only be one partition on a removable device, and will happily automount an EFI system partition otherwise. If you have chosen to install Arch onto a USB mass storage device and want to be able to continue to use it as a cross-platform removable drive, this can be accomplished by creating a partition housing an appropriate file system (most likely NTFS or exFAT).This is necessary to allow booting on multiple systems each requiring different modules in early userspace. Before creating the initial RAM disk, in /etc/nf move the block and keyboard hooks before the autodetect hook.If you run Windows or macOS, download VirtualBox, install VirtualBox Extensions, attach your removable medium to a virtual machine running Linux (either already installed or via a live ISO), and point the installation into the now attached drive while using the instructions at the Installation guide.If booting from a Live USB, the installation cannot be made to the same removable medium you are booting from.

An Arch Linux CD/USB can be used to install Arch onto the removable medium, via booting the CD/USB and following the installation guide.If you have another Linux computer available (it does not need to be Arch), you can follow the instructions at Install from existing Linux.There are various ways of installing Arch on removable media, depending on the operating system you have available: However, if you plan to install desktop environments such as KDE, 3 GiB or more is recommended. A modest set of packages will fit, leaving a little free space for storage. Note: At least 2 GiB of storage space is recommended.

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