Upgrade MinIO KMS on Linux

MinIO KMS supports upgrades through replacing the older binary with the newer release on each cluster host. You can then restart the cluster to bring up all nodes with the new version.

Review and complete all prerequisites before proceeding.

1. Make a backup of the current state of your MinIO KMS cluster.

   minkms backup
   

2. Download the new MinIO KMS binary and replace the old binary.

   Do this for each node in the MinIO KMS cluster.

   Select the tab corresponding to your OS/Architecture combination. The displayed commands download the latest MinIO KMS binary, set it to executable, and move it into the system path at /usr/local/bin. If you installed MinIO KMS at another location, replace /usr/local/bin with the path of the existing MinIO KMS binary. You may need sudo for one or more of the commands.

   Linux AMD64

   curl --progress-bar --retry 10 -L https://dl.min.io/aistor/minkms/release/linux-amd64/minkms -o minkms
   chmod +x ./minkms
   mv ./minkms /usr/local/bin/
   

   Linux ARM64

   curl --progress-bar --retry 10 -L https://dl.min.io/aistor/minkms/release/linux-arm64/minkms -o minkms
   chmod +x ./minkms
   mv ./minkms /usr/local/bin/
   

3. Restart MinIO KMS.

   minkms restart
   

4. Verify all nodes show the expected version.

   minkms stat