@Peter1968@JanNLD (and any other who experience segfault): what is your NAS model? Try logging in to SSH and replacing your Sync binary with this one. Let me know if it helps.
This worked for me on my DS214 with a freshly installed 6.0RC. To make it work with a disabled admin user, I changed the start-stop-status script to run under my default user which also belongs to the administrators group.
DSM 6.0 upgrade says Sync not compatible
in Sync for NAS (Network Attached Storage)
Posted
This worked for me on my DS214 with a freshly installed 6.0RC. To make it work with a disabled admin user, I changed the start-stop-status script to run under my default user which also belongs to the administrators group.