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name: Documentation/decisions/001-host-update-mechanism.adoc 	 # note: path name is non-authoritative(*)
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# Host update mechanism

## 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.

debug log:

solving 03bbae2 ...
found 03bbae2 in https://inbox.spectrum-os.org/spectrum-devel/20220708110215.92996-1-ville.ilvonen@unikie.com/

applying [1/1] https://inbox.spectrum-os.org/spectrum-devel/20220708110215.92996-1-ville.ilvonen@unikie.com/
diff --git a/Documentation/decisions/001-host-update-mechanism.adoc b/Documentation/decisions/001-host-update-mechanism.adoc
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Checking patch Documentation/decisions/001-host-update-mechanism.adoc...
Applied patch Documentation/decisions/001-host-update-mechanism.adoc cleanly.

index at:
100644 03bbae2cd469cbb270e4ed776de217657542cdcf	Documentation/decisions/001-host-update-mechanism.adoc

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