How to upgrade to Qubes 4.1
This page explains how to upgrade from Qubes 4.0 to Qubes 4.1. There are two ways to upgrade: a clean installation or an in-place upgrade. In general, a clean installation is simpler and less error-prone, but an in-place upgrade allows you to preserve your customizations.
Before attempting either an in-place upgrade or a clean installation, we strongly recommend that you first back up your system so that you don’t lose any data.
If you would prefer to perform a clean installation rather than upgrading in-place:
- Create a backup of your current installation.
- Download the latest 4.1 release.
- Follow the installation guide to install Qubes 4.1.
- Restore from your backup on your new 4.1 installation.
The upgrade may take several hours, and will download several gigabytes of data.
In place upgrade is a complex operation. For this reason, we provide a
qubes-dist-upgrade tool to handle all the necessary steps automatically. You
can install it with the following command in the dom0 terminal:
sudo qubes-dom0-update -y qubes-dist-upgrade
The upgrade consists of seven stages — six before restarting the system —
labeled “STAGE 0” through “STAGE 5” in the options list below. The seventh stage
is rebuilding the application and features lists, which you can start with the
Full list of options can be obtained with
Usage: qubes-dist-upgrade [OPTIONS]... This script is used for updating current QubesOS R4.0 to R4.1. Options: --double-metadata-size, -d (STAGE 0) Double current LVM thin pool metadata size. --update, -t (STAGE 1) Update of dom0, TemplatesVM and StandaloneVM. --template-standalone-upgrade, -l (STAGE 2) Upgrade templates and standalone VMs to R4.1 repository. --release-upgrade, -r (STAGE 3) Update 'qubes-release' for Qubes R4.1. --dist-upgrade, -s (STAGE 4) Upgrade to Qubes R4.1 and Fedora 32 repositories. --setup-efi-grub, -g (STAGE 5) Setup EFI Grub. --all, -a Execute all the above stages in one call. --assumeyes, -y Automatically answer yes for all questions. --usbvm, -u Current UsbVM defined (default 'sys-usb'). --netvm, -n Current NetVM defined (default 'sys-net'). --updatevm, -f Current UpdateVM defined (default 'sys-firewall'). --skip-template-upgrade, -j Don't upgrade TemplateVM to R4.1 repositories. --skip-standalone-upgrade, -k Don't upgrade StandaloneVM to R4.1 repositories. --only-update Apply STAGE 0, 2 and resync appmenus only to selected qubes (coma separated list). --keep-running List of extra VMs to keep running during update (coma separated list). Can be useful if multiple updates proxy VMs are configured. --max-concurrency How many TemplateVM/StandaloneVM to update in parallel in STAGE 1 (default 4). --resync-appmenus-features Resync applications and features. To be ran individually after reboot.
After installing the tool, upgrade can be performed all at once with:
sudo qubes-dist-upgrade --all
-y) option can be used to automatically
accept all the actions without confirmation.
Alternatively, each upgrade stage can be started separately (see the list of options above).
After completing “STAGE 0” through “STAGE 5”, restart the system. Then perform the final step:
sudo qubes-dist-upgrade --resync-appmenus-features
When this completes, you can start using Qubes OS 4.1.
- The script does not convert LUKS1 to LUKS2 disk encryption format (fresh Qubes 4.1 install uses LUKS2 for disk encryption, while earlier versions use LUKS1).
- Early Qubes 4.0 pre-releases (before R4.0-rc2) made
/boot/efipartition only 200MB, which is too small for R4.1. In case of such partition layout, clean installation is necessary.
- If user has created some custom qrexec policy entries, they may not be
correctly handled in R4.1, resulting in denying all the calls. It is advised
to verify if there are not qrexec policy errors in the log after the system
restart - using
If any early upgrade stage fails, the
qubes-dist-upgrade tool will try to
restore previous system state. After fixing an issue, the tool can be started
again, to retry the operation. If a later stage (number 3 or later) fails, the
tool may not be able to rollback the changes. But it may still be possible to
retry the upgrade.
After upgrading or performing a clean installation, we strongly recommend updating your system.