= The User Partition :SPDX-FileCopyrightText: 2022 Alyssa Ross :SPDX-License-Identifier: GFDL-1.3-or-later OR CC-BY-SA-4.0 The Spectrum host system is immutable, so configuration and user data lives on a separate partition. The host system discovers the user partition by looking for the special partition type `9293e1ff-cee4-4658-88be-898ec863944f`. This behavior can be overridden with the `ext` parameter on the host's kernel command line, which works in a similar way to the standard Linux `root` parameter.