Hi,
Over the last few months, I have an intermittent issue with a "missing key file"
Normal behaviour:
Server runs 24/7, using a Sandisk USB for boot, a random old drive to start the array, and a bunch of 3TB WD Reds in a zpool. When I log in to the dashboard, I have a dark theme and all the pages work as expected.
Problematic behaviour:
Every now and then, I'll log into the dashboard to start or stop a container.
When I get to the login page, it's a white background instead of my dark theme.
When I login, my dark theme is replaced with the stock white theme
The server information in the top right says "Unraid OS - Missing key file"
The dashboard has a bunch of php errors relating to docker
The docker tab is absent, but the containers are still running
The log usage shows 100% but when I try to open the log (logging.htm) the page just loads and timeouts eventually.
When I reboot, everything is back to normal, until the next time it (seemingly randomly) happens.
I thought the boot USB was dying, so I replaced it.
The problem went away for a few weeks, but now it's back again.
What steps do I need to take to diagnose it and fix it for good? This system has been rock-steady for years up until a few months ago and I'd like to get it back to being stable.
Edit:
Syslog - I'll have to capture that the next time it happens. Unfortunately, I have no idea when it's going to happen. Before I replaced the USB, it would happen almost daily. Since replacing it a few weeks ago, this is the first occurrence. With the last USB, it progressively got worse until I had to shutdown with the power button because none of the controlled shutdown (ui, remote ssh, or local terminal) were actually shutting the system down.
Version: 6.9.2
Hardware:
Motherboard: ASUSTeK COMPUTER INC. P8B75-M LX
CPU: Intel® Core™ i3-3225 CPU @ 3.30GHz
RAM: 16GB Corsair, don't recall the exact model
Plugins:
Unassigned Devices
CA Auto Update Applications
CA Backup / Restore Appdata
CA Cleanup Appdata
Community Applications
Dark Theme
Dynamix Active Streams
Dynamix S3 Sleep
Dynamix System Buttons
Dynamix System Statistics
Dynamix System Temperature
Fix Common Problems
Nerd Tools
ssh Plugin
Unassigned Devices Plus
User Scripts
ZFS for Unraid 6
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