Mysql Cluster Manager - bootstrap option, losing data on machine restart (no replies)

Hello, we are trying to use mysql cluster manager for development using the bootstrap option, but when the machine restarts all data is lost.

Here's what I'm doing:

1. start ./bin/mcmd --bootstrap
2. create tables, load data etc.
3. use ./bin/mcm -> stop cluster mycluster;
4. reboot machine
5. start ./bin/mcmd --bootstrap
6. use ./bin/mcm -> start cluster mycluster;
7. all data created in step #2 is gone.

My understanding was that on a total cluster failure (reboot when on 1 machine), data nodes are brought back by looking at transaction logs, but this doesn't appear to be happening. Maybe I'm missing a command here?

Thank you.