[CronosTitan]

After connecting the backup app with dropbox on my Kodi Matrix 19.4 and doing the backup I get the message destination may not be 'writable'. All data is gathered but the compression does not finish.

[CronosTitan]

OK. I tried my portable HDD. Same thing. I create a folder for the backup. choose Remote path and navigate to the folder. But still I get 'make sure destination is writable'.

[Klojum]

Which exact Backup app on which Linux OS? What disk format does the portable HDD have?

[CronosTitan]

Running Coreelec on ODROID N2. HDD format NTFS. The App from repo in Kodi. Program addons

[Klojum]

I'd tip the CoreELEC devs on their shoulders for this one. Their OS = Their problem.