could that write up be used in the same way but for OMV? Or is there something within that process that would fail.
Unfortunately the whole write up is a fail since it only tries to cope with creating backups (using the pretty unreliable tmutil setdestination method). This tutorial totally ignores two things:
- why we do backup: to be able to (do a full) restore. This won't work with such a hack since the share is not announced automagically in the network. So once your Mac's drive died you won't be able to restore from your backup unless you're an expert. Everything that requires special knowledge or manual work around backup is bad
- it also ignores reliability. An SMB server doing TM backups must at least support the F_FULLFSYNC Extension to reliably store backups. Otherwise data corruption will happen anyway. So trying this prior to Samba 4.8 is a horribly bad idea
The web is full of dangerous TM tutorials and confusion (like the one spread here, not understanding that TM over AFP still works flawlessly). It started back with OS X 10.5 when people proposed ugly hacks to make TM work over SMB, NAS vendors like Synology advertised TM capabilities without using an appropriate Netatalk version supporting the recently introduced new AFP calls and so on. Then people loose data, forget about these complicated hacks but of course the tutorials remain...