Most likely you are running old version of DSS V6. In newer version it is possible to repair system volume even if you have no NAS volumes. Please update and then try to repair FS (download new ISO file from our web site and upload it in software updater field).
I downloaded dss6.0up95_b6156.oe_i.iso. But if I choose "S/W upgrade" in the webgui, it says: "it is not possible to upload an update file if the system volume does not exist".
Can I upgrade anyway? Using the gui? Is the config preserved then?
You can copy content of ISO file on USB stick and run /boot/bootinst.sh or /boot/bootinst.exe if on windows to make it bootable and boot DSS V6 from it to run file system repair. Later you may boot from old installation medium to save setup files to restore it on new version.
We are having the same issue : No System Volume found. I cannot upload a new release and the options I have read in the forums are all grey'd out or not clickable due apparently to the 'no system volume found' issue. Of the solutions I've read so far, the only one to have resulted in a fix was to add another drive but our frame is full. We are happy to upgrade and have already accepted that all the contents are probably lost so we are willing to fully rebuild the drive if required although it would be great to recover the contents. This all started when a motherboard crashed and we have run the repair tool and the raid array is reporting health. We've run the repair tool in the console and after 3 days is returned success. But we still don't have a system volume. Any help would be greatly appreciated!!
Model: Data Storage Software V6 Lite
Version: 6.0up06.8401.3535 32bit
Release date: 2009-07-22
Updates: u33719, u33719, u33719, u33719, u33719