Convert from memsql-ops to memsql-admin

I recently upgraded our V5 cluster to V6.7.
After the upgrade I would like to start using memsql-tools/memsql-admin but was very frustrate not to find any clear cut documentation on how to do it.

If I try to execute any memsql-admin commands, I get
no master aggregator found in this cluster

So how do I specify/register master node ?
I tried

memsql-admin bootstrap-aggregator --memsql-id
not working. I got
no node found with given prefix

Tried
memsql-admin register-node …
error:
no host found with hostname

What next ? add host ?

Hello,

Sorry to hear that you had a tough time switching. You will have to do a migration process to start using toolbox.
These docs will guide you through the process: SingleStoreDB Cloud · SingleStore Documentation