Update Ubuntu kernel without reboot using the free Canonical Livepatch Service. Apply critical Ubuntu kernel patches without rebooting Ubuntu. Apply critical kernel security fixes without rebooting. The Canonical Livepatch Service reduces planned or unplanned downtime while maintaining compliance and security. Livepatch is available on LTS based systems from 14.04 LTS within the normal support cycle.
Free service for three installations pr account
Kernel patching is different from upgrading kernel. Canonical Livepatch service uses the upstream Linux Kernel Live Patching technology to apply critical kernel patches without rebooting. You can use the service for free with three installations of Ubuntu pr account.
Step one. Sign up for an Ubuntu One account
Step two. Get your Canonical Livepatch Service token
Step three. Install the service and activate with the token.
Step four. You can check live patch status at any time with:
canonical-livepatch status --verbose
References abotu Ubuntu kernel patches
How to use the Canonical Livepatch service to patch a kernel without rebooting
More info about the Canonical Livepatch Service
Using Canonical Livepatch Service to Patch Ubuntu Kernel without Reboot