Solved sort of....
I ended up installing OMV5 from scratch on a new VM and redoing the config. I wanted to try and fix the existing omv install but I couldn't find any info specific to my issue, and I didn't have enough time in the day to do extensive debugging. Further more considering OMV5 is still being tested, and previous instructions that OMV3 > OMV4 requires a fresh install I figured I better as well bite the bullet. FYI for anyone else running OMV + snapraid + mergerfs, the process to move everything over was really simple. The broken OMV install was working fine other than the web GUI so I was able to SSH in and look at config files when needed.
While the broken OMV VM was running, I spun up a new Debian Buster VM and installed OMV 5 following this guide - Install OMV5 on Debian 10 (Buster) OMV 5.x (development).
Then I installed omv-extras 5 using the guide here - OMV-Extras.org Plugin
After that it was the typical process of setting up snapraid, mergerfs, creating users, and shares. This whole time the broken OMV install was running, but before I enabled the CIFS and NFS shares I shut down the broken OMV VM, assigned its IP to the OMV5 VM in my router, and then rebooted the OMV5 VM. After this I enabled the CIFS and NFS shares and all my other devices picked up the shares like nothing had changed.
One thing I remember to do this time, I took a snapshot of the VM after everything was setup so when I do eventually break this again I can just revert to the backup.
Original Post
Upgraded to OMV 5.0 because I like testing stuff. Everything was working fine after the update but then after a reboot I lost access to the web gui. Everything else on OMV is running, I can SSH, snapraid, the cifs and nfs shares all work.
So far I've tried the commands below
sudo omv-salt deploy run nginxThe result runs fine and installs nginx and configures it without any issues. I can't post the log of that here because its too long.
Then I did
sudo omv-salt deploy run php-fpm
but the results are 'state php-fpm does not exist'
I've also tried php7.0-fpm, php, and -php7.0
I've restarted nginx which works fine but the web interface is still giving me a 502.
The results of dpkg -l | grep openm is
ii openmediavault 5.0.10-1 all openmediavault - The open network attached storage solution
ii openmediavault-diskstats 5.0-1 all OpenMediaVault disk monitoring plugin
ii openmediavault-duplicati 4.0 all openmediavault duplicati plugin
ii openmediavault-keyring 1.0 all GnuPG archive keys of the OpenMediaVault archive
ii openmediavault-lvm2 5.0.1-1 all OpenMediaVault Logical Volume Manager (LVM2) plugin
ii openmediavault-omvextrasorg 5.1.1 all OMV-Extras.org Package Repositories for OpenMediaVault
iF openmediavault-snapraid 5.0.1 all snapraid plugin for OpenMediaVault.
ii openmediavault-unionfilesystems 5.0 all Union filesystems plugin for OpenMediaVault.Doing apt install -f keeps erroring out whwn the snapraid plugin tries to update.