I would like Time Machine to manage two separate backups for me: the first, an external HD to backup my entire system; and the second, an SD card for essential files and projects. The SD card, ...

I'm trying to create a TM backup to restore from. Even though it is a completely new drive and TM is set to defaults, it is only backing up 1/2 the data. The drive is 50GB full. TM is backing up only ...