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Unclean shutdown detected

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Unsure.  It started shutting down, then half way through it decided that files were stuck open on the cache drive and disk 4, so it itemized the processes, then the system carried on, unmounted the remaining drives and shut down like nothing happened.


I have seen this on occasion on my own system where it believes that the shutdown was unclean even though it was clean (I suspect a race condition somewhere).  When this happens, I hit Fix Common Problems and see what it says.  If it doesn't think that an unclean shutdown happened (the GUI and FCP check for unclean shutdowns differently), then I just cancel the parity check.  (Assuming of course that you haven't hit ignore on that particular warning)

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20 minutes ago, aberg83 said:

this is happening on every reboot

It has to be able to write the started/stopped status to config/super.dat on flash. If that doesn't happen for some reason you can get unclean. Maybe put your flash in PC and checkdisk though I didn't see anything in syslog. Also check timestamp of super.dat to see if it corresponds to the shutdown time.

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  • 2 years later...

hi Guys


Since the last Unraid Update to 6.9.1 I got the message "Unclean shutdown detected" after every restart.
This means that a parity check is started every day, but this takes so long that it is never finished.
The server is shut down again via a script before the parity check is ended.

I activated the syslog according to the instructions and shut down the server (this time even via the Unraid button in the GUI, not via the script).


syslog- unraid-diagnostics-20210421-2004.zip

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Is there a topic in which the shutdown is described. I couldn't find anything.
Unfortunately, my scripting skills are very modest.

Do the VMs actually have to be terminated before the array?
These partially access the array.

Most of them, however, run on the cache drives.

At the moment I have this script installed.


#! / bin / bash

echo running powerdown

/ usr / local / sbin / powerdown


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No the Script works fine.

Sorry the spaces are only a copy paste failure to the post.


The problem is, the script terminates the server before the array has shut down correctly.


if I understood JorgeB correctly I had to do it like this:
1. End the array
2. Add timeout
3. Quit the server in general


I couldn't figure out how to end the array with a command first and the command for the timeout.

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  • 6 months later...

im hoping someone can help me.  my server shuts down the arrays and vm, etc.  when i run the log it says there is an unclean shutdown error.  im not sure what this is and im new so i dont really know how to fix it.  hoping this is an easy solution.  it happens intermittently, so say every few weeks or so, then when i start the array back up the parity check starts. i have attached the syslog i grabbed before starting the array back up.


any help is much appreciated.

2021-10-27 syslog-unclean shutdown.txt

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2 hours ago, sirhotness said:

i have attached the syslog i grabbed before starting the array back up.

That doesn't help since it starts over after any reboot.


On 4/21/2021 at 7:18 PM, JorgeB said:

When Unraid forces a shutdown it saves the diags in the logs folder of your flash drive, attach latest ones of those here.


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12 hours ago, JorgeB said:

When Unraid forces a shutdown it saves the diags in the logs folder of your flash drive, attach latest ones of those here.


ok i just realized i dont have the syslog enabled.  i will have to enable this and then the next time this happens grab the diags you're talking about from the log folder on the flash drive.  im thinking it might be better to use my old server since its still running to to dump the syslog that you need instead of using the flash drive in order to save wear and tear on the flash drive.  this problem doesnt happen all the time, so would you also suggest the same method i just described?  i have changed the timeouts as you described earlier in this post and im hoping that was the issue, but just incase i'd rather enable the syslog server.


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