k3s server --cluster-reset
Alex just responded: “Downgrade.”
Mixing agent and server versions is supported as long as the agent version is not higher than the server’s. Downgrading agents alone is safe and often fixes node-level issues (e.g., kubelet flags changed).
After downgrade, kubectl returns no matches for kind "HorizontalPodAutoscaler" in version "autoscaling/v2" . Manually edit HPA manifests to use autoscaling/v1 (if supported) or restore from snapshot and avoid downgrading so far.
Download the desired version binary:
The reply came instantly: “How?”
This command restarts the node, discarding its current etcd data and re-initializing from the most recent snapshot in /var/lib/rancher/k3s/server/db/snapshots/ .
If your HA cluster becomes non-functional after a downgrade (e.g., etcd fails to start due to incompatible data directory), you can force a cluster reset.
(same as single-node)
k3s server --cluster-reset
Alex just responded: “Downgrade.”
Mixing agent and server versions is supported as long as the agent version is not higher than the server’s. Downgrading agents alone is safe and often fixes node-level issues (e.g., kubelet flags changed). k3s downgrade version
After downgrade, kubectl returns no matches for kind "HorizontalPodAutoscaler" in version "autoscaling/v2" . Manually edit HPA manifests to use autoscaling/v1 (if supported) or restore from snapshot and avoid downgrading so far.
Download the desired version binary:
The reply came instantly: “How?”
This command restarts the node, discarding its current etcd data and re-initializing from the most recent snapshot in /var/lib/rancher/k3s/server/db/snapshots/ . Manually edit HPA manifests to use autoscaling/v1 (if
If your HA cluster becomes non-functional after a downgrade (e.g., etcd fails to start due to incompatible data directory), you can force a cluster reset.
(same as single-node)