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Diffstat (limited to 'Documentation/decisions/001-host-update-mechanism.adoc')
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diff --git a/Documentation/decisions/001-host-update-mechanism.adoc b/Documentation/decisions/001-host-update-mechanism.adoc new file mode 100644 index 0000000..56a37fc --- /dev/null +++ b/Documentation/decisions/001-host-update-mechanism.adoc @@ -0,0 +1,22 @@ +# Host update mechanism + +// SPDX-FileCopyrightText: 2022 Unikie +// SPDX-License-Identifier: GFDL-1.3-no-invariants-or-later OR CC-BY-SA-4.0 + +## Status +Proposed + +## Context +Spectrum OS has no implementation for software update. The host - consisting of +Linux kernel, KVM, cloud-hypervisor and minimal user space tools - software +updates are required to support feature development and security fixes. + +## Decision +A-B partitioning created by Spectrum installer Installer sets up the system on +partition A of the block device A-B update scheme where user (or installer) +writes the update image to partition B Bootloader provides four boot options: +A, A mutable, B, B mutable + +## Consequences +Default boot selection, incremental updates (e.g. overlays), network update +postponed for later. |