Updating the system is a crucial task, ensuring the system remains functional is paramount. RLXOS provides dedicated tools for managing system updates and fallbacks.


Sysroot is a command-line utility designed for managing your system's roots, updates, and extensions, similar to other package managers but with the following features:

  1. Atomic Updates: Updates either complete successfully or fail without making any partial alterations to your system.
  2. Rollback Option: You can revert to a previous version of your system in case updates are faulty.
  3. Delta Transactions: Instead of receiving complete updated files or packages, you will only get the changes, unlike traditional packaging systems.

Checking for Updates

Before applying updates, it's advisable to review the changelog. Execute the following command:

$ sudo sysroot update

System Status

The sysroot utility maintains two deployments (or versions) for better understanding:

  1. Active: This is the current deployment (or version) that you are currently using.
  2. Inactive: This represents either the previous or future deployment after any changes have been made.

Switching Update Channels

RLXOS offers three update channels based on stability:

Channel NameDescriptionRelease Cycle
stable(Default) This channel provides point releases after verifying stability on the preview channel.Monthly to Quarterly
previewThis channel offers monthly to weekly changes for the next major release for stability testing.Weekly to Monthly
unstableThis channel is used by distro developers to test their changes.Daily to Weekly

While it's recommended to stay on the stable channel, you can switch channels via $ sysroot switch <channel> and reboot.