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108 lines
4.6 KiB
Markdown
108 lines
4.6 KiB
Markdown
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---
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lang: en
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layout: doc
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permalink: /doc/upgrade/4.2/
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title: How to upgrade to Qubes 4.2
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---
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This page explains how to upgrade from Qubes 4.1 to Qubes 4.2. There are two
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ways to upgrade: a clean installation or an in-place upgrade. In general, a
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clean installation is simpler and less error-prone, but an in-place upgrade
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allows you to preserve your customizations.
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## Back up
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Before attempting either an in-place upgrade or a clean installation, we
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strongly recommend that you first [back up your
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system](/doc/how-to-back-up-restore-and-migrate/) so that you don't lose any
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data.
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## Clean installation
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If you would prefer to perform a clean installation rather than upgrading
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in-place:
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1. Create a
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[backup](/doc/how-to-back-up-restore-and-migrate/#creating-a-backup) of your
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current installation.
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2. [Download](/downloads/) the latest 4.2 release.
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3. Follow the [installation guide](/doc/installation-guide/) to install Qubes
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4.1.
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4. [Restore from your
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backup](/doc/how-to-back-up-restore-and-migrate/#restoring-from-a-backup) on
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your new 4.2 installation.
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## In-place upgrade
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**Warning:** It is not possible to upgrade directly from releases earlier than
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4.1. If you're still on an earlier release, please either perform a [clean
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installation of 4.2](#clean-installation) or [upgrade to
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4.1](/doc/upgrade/4.1/) first.
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The upgrade may take several hours, and will download several gigabytes of
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data.
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In place upgrade is a complex operation. For this reason, we provide a
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`qubes-dist-upgrade` tool to handle all the necessary steps automatically. You
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can install it with the following command in the dom0 terminal:
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sudo qubes-dom0-update -y qubes-dist-upgrade
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The upgrade consists of five stages --- three before restarting the system ---
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labeled "STAGE 1" through "STAGE 3" in the options list below, and two after restarting the system --- labeled as "STAGE 4" and "STAGE 5" below.
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Full list of options can be obtained with `qubes-dist-upgrade --help`:
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Usage: qubes-dist-upgrade [OPTIONS]...
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This script is used for updating current QubesOS R4.1 to R4.2.
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Options:
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--update, -t (STAGE 1) Update of dom0, TemplatesVM and StandaloneVM.
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--release-upgrade, -r (STAGE 2) Update 'qubes-release' for Qubes R4.1.
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--dist-upgrade, -s (STAGE 3) Upgrade to Qubes R4.1 and Fedora 32 repositories.
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--template-standalone-upgrade, -l (STAGE 4) Upgrade templates and standalone VMs to R4.1 repository.
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--finalize, -x (STAGE 5) Finalize upgrade. It does:
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- resync applications and features
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- cleanup salt states
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--all-pre-reboot Execute stages 1 do 3
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--all-post-reboot Execute stages 4 and 5
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--assumeyes, -y Automatically answer yes for all questions.
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--usbvm, -u Current UsbVM defined (default 'sys-usb').
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--netvm, -n Current NetVM defined (default 'sys-net').
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--updatevm, -f Current UpdateVM defined (default 'sys-firewall').
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--skip-template-upgrade, -j Don't upgrade TemplateVM to R4.2 repositories.
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--skip-standalone-upgrade, -k Don't upgrade StandaloneVM to R4.2 repositories.
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--only-update Apply STAGE 4 and resync appmenus only to
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selected qubes (comma separated list).
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--keep-running List of extra VMs to keep running during update (comma separated list).
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Can be useful if multiple updates proxy VMs are configured.
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--max-concurrency How many TemplateVM/StandaloneVM to update in parallel in STAGE 1
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(default 4).
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After installing the tool, before-reboot stages can be performed at once with:
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sudo qubes-dist-upgrade --all-pre-reboot
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Optionally, an `--assumeyes` (or `-y`) option can be used to automatically
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accept all the actions without confirmation.
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Alternatively, each upgrade stage can be started separately (see the list of
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options above).
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After completing "STAGE 1" through "STAGE 3", restart the system. Then perform
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the final steps:
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sudo qubes-dist-upgrade --all-post-reboot
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After performing those steps, it's recommended to restart the system one last time.
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When this completes, you can start using Qubes OS 4.2.
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## Update
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After upgrading or performing a clean installation, we strongly recommend
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[updating your system](/doc/how-to-update/).
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