This morning (AU time) I installed OMV on my old HP-PROLIANT micro server. It has been running on Ubuntu Server 18.04 LTS, and includes the boot HDD plus a LVM array of mixed size HDDs.
After some initial trial and tribulations I eventually got to a clean install. I mainly had issues with the installer insisting on installing to the installation USB drive. I got past that eventually.
Once installed & rebooted, I logged into the web GUI from my work station, using the default username & password (admin and openmediavault)
At this point I tried to do some basic configuration. Every action that required a "Save" resulted in a not so helpful warning dialog "An error occurred".
I was unable to open logs ("An error occurred"), so shut down and explored the HDD on a docking station on my work station.
I am not finding any meaning full errors. There are a number of "error.log" files. including for nginx. These are all zero bytes.
Any tips on where I might start trouble shooting this?