Hello chaps
Just stated to fire up time machine to use with my external disk that ive got bits and bobs on, and time machine informs me I have to use an empty disk for backups! Is this true? Do I have to buy another disk!?

RiverCottage
Just stated to fire up time machine to use with my external disk that ive got bits and bobs on, and time machine informs me I have to use an empty disk for backups! Is this true? Do I have to buy another disk!?
RiverCottage