Backend Reinstall

Backend reinstalls

We are putting this here because it is a common task especially when getting your configuration correct.

There are several reasons to reinstall a backend node.

• You're customizing and figuring out if the node's configuration is correct.
• You added software or a cart and want to refresh the OS.
• You want to nuke the whole thing and start over.

Reinstall to refresh

# stack set host boot a:backend action=install

# stack run host command="reboot"

Reinstall to start over

Do this if:

• Your level of certainty is no longer high.
• You've changed partitioning schemas.
• You've changed controller schemas.

# stack set host boot a:backend action=install
# stack set host attr a:backend attr=nukedisks value=True

If you have controller config you also are redoing:

# stack set host attr a:backend attr=nukecontroller value=True

Check it:

# stack list host boot
HOST         ACTION  NUKEDISKS NUKECONTROLLER
frontend-0-0 ------- False     False
backend-0-0  install True      True
backend-0-1  install True      True
backend-0-2  install True      True
backend-0-3  install True      True
backend-0-4  install True      True

Reboot:

# stack run host command="reboot"

Or power-cycle with your magic power-cycle scripts. (I have those, doesn't everybody have those?)

Or go push the buttons.