Upgrade Your Kernel Without Rebooting
Apply kernel security patches and updates without downtime. Boot the new kernel alongside the old one, migrate workloads, and roll back instantly if anything goes wrong. No maintenance windows required. Available standalone as a per-node subscription: adopt it without changing the rest of your stack.
Zero-Downtime Kernel Upgrades
Kernel upgrades are one of the most painful operations in production Linux. Teams delay security patches for weeks because they require reboots. Livepatching services work around it by patching individual functions in place. LiveUpdate replaces the entire kernel, and the old one keeps running until you commit.
Boot New Alongside Old
Launch the new kernel alongside the running one. Both kernels operate simultaneously on separate cores. No downtime window to schedule.
Migrate Workloads
Move applications from the old kernel to the new one gradually. Validate each migration before proceeding. Keep full control over the transition.
Instant Rollback
If something goes wrong, roll back instantly. The old kernel is still running. No reboot, no recovery procedure, no data loss.
Automatic Kernel Failover
A kernel crash today means a full reboot and minutes of downtime. Multikernel LiveUpdate turns the same event into a sub-second failover.
Continuous Monitoring
A standby kernel runs alongside your primary kernel, monitoring it via heartbeat. Always ready to take over.
Sub-Second Failover
When the primary kernel crashes, the standby takes over its devices and resumes service. No full reboot. No kdump. Applications continue running.
Automatic Recovery
After failover, the system automatically reclaims resources from the failed kernel and prepares a new standby. Self-healing without operator intervention.
Benefits
Ship Security Patches Faster
Kernel updates no longer wait for reboot windows. Apply patches immediately with zero application downtime.
Improve SLA
Sub-second failover means kernel crashes no longer translate to minutes of downtime. Directly measurable improvement in service reliability.
Reduce Operator Burden
Eliminates scheduled maintenance windows and manual crash recovery. The system handles both planned and unplanned events automatically.
How to Get It
Multikernel LiveUpdate is open-source software you install on your own infrastructure. Free to download and build; the enterprise subscription is priced per node per year and buyable standalone.
Open Source
Download and build from source. Perform zero-downtime kernel upgrades on any multikernel-enabled system. Community support via GitHub issues.
Enterprise
A standalone per-node annual subscription for production environments where downtime is not an option.