Fun with devicemapper snapshots
I find myself working with Raspbian disk images fairly often. A typical workflow is: Download the disk image. Mount the filesystem somewhere to check something. Make some changes or install packages just to check something else. Crap I’ve made changes. …at which point I need to fetch a new copy of the image next time I want to start fresh. Sure, I could just make a copy of the image and work from there, but what fun is that?