Content Directory file path issue

[Moribund]

Hi,

I'm getting the Content directory path isn't absolute error/message when trying to install on a Synology DS218. The example page in the help showing the shared drives looks like its a really old version of the operating system - I'm running 7.2.1 version of disk manager and the shared drives do not have a properties page.
I've tried /volume1/music - it says "Content directory isn't a folder: /volume1/music". On my PC the music folder is a mapped drive \\DS218\Music
I'm about to give up :-)
Thanks John