[[Solved] Run btsync after install from repository on Raspberry Pi]

You should be able to use the command "update-rc.d" 

Something like 'update-rc.d btsync defaults' or 'update-rc.d btsync enable'

[Remove duplicated/old devices]

an alternate title "How to resync devices."

Currently, there seems to be a issue with devices that weren't successfully unlinked (happened to me recently) or devices that had the OS crash and wasn't able to unlink them prior to the crash. 

SO, I propose a new feature that can re-link the existing devices all at once which effectively un-links the lost devices and forever bans them from the devices list.

The basic function would be that on an active device you can have an option to re-link simultaneously all the active devices. Basically doing the manual steps of 1) unlink all your devices, and 2) relink them one-by-one automagically in the background. In theory the manual steps aren't an issue, but if you have more than [any number greater than 2] devices... you are going to have a hard time.

My OCD gets me anxious  seeing umpteen devices in my device list that haven't been active for months because I can't manually unlink them due to hard drive crash or some weird BTSync bug that forced me to re-link them without unlinking them.

 

Just my 2 cents.