tree be822131d8e57e88bf20bc069a26ba4dcc8a5222
parent 883a59d45f1b3e2277c3d77c7f853059b104aba4
author Andrew Geissler <geissonator@yahoo.com> 1591386188 -0500
committer Andrew Geissler <geissonator@yahoo.com> 1591646880 -0500

clear host-on file when host stopped

This file is currently removed in the chassis poweroff target within the
op-wait-power-off service. This was fine until our recent introduction of
warm resets.

Here's the scenario that causes trouble:

- Reboot BMC with host up, /run/openbmc/host@0-on is created to indicate
  the host is already on and the services involved in booting the host
  should do nothing.
- Now issue a warm reboot of the host. Because the chassis power is not
  cycled on a warm reboot, the service is not run which clears the
  host@0-on file. This then leads to the service responsible for starting
  the host not running.

The solution is to clear this file when the host is stopped.

The removal of the file should stay within chassis poweroff target to
handle corner cases where only a hard power off is done to the system.

Tested:
Built image with fix and verified that test scenario now works and that
file was cleared as expected as a part of the warm reboot.

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I6383d96f7a6be32ca19b998d9cd1cce81a307412