Is there a way to do this?

 

I'd like to perform some actions before shutdown/restart using bash scripts. Is there a way that I can hook into the existing shutdown/restart to do this? Failing that I guess I'd like to make my own shutdown script that calls the safe shutdown somehow so that I don't need a parity check on reboot.

In the   /sbin   directory, there is this command--- dated march 8, 2021:

 

 

And in the forum, there is this suggestions:

 

https://forums.unraid.net/topic/50490-solved-commands-to-start-and-stop-array/#comment-496967

 

The problem (as my memory serves me) is making sure that the array, Dockers and VM's are all stopped properly and that 'ArrayStopped' flag is properly written to the flash drive to achieve a 'clean' shutdown.   (There are situations where the GUI buttons don't always succeed in meeting all of these requirements!)

 

 

Edited July 30, 20232 yr by Frank1940

And then there is this section of the manual:

 

    https://docs.unraid.net/unraid-os/manual/troubleshooting#unclean-shutdowns

 

 

The ‘shutdown’ command from the CLI does exactly what pressing the Shutdown button in the GUI does.

 

The section on troubleshooting unclean shutdowns applies regardless of how the shutdown process is initiated.

 

So it took a little digging and another post on here, but it seems like the 'powerdown' command itself calls a script which then calls the 'stop' file which doesn't exist by default but can be created. It runs very early in the process so it should fit this use case nicely.