I’m using KopiaUI to create a backup from my /home. The repository is on a portable HD.
Comparing the number of files/volume with the snapshot created it’s clear that some files were not copied. I didn’t receive any error message during the process.
Kopia is ignoring its own cache directory and filesystem objects it can’t understand (it only understands files, dirs and symlinks).
Can you run the snapshot using command line to see if there are any warnings about unsupported files? Those warnings will be added to UI in the next release.
I’m not a long time Linux user, but thinking of saving my files from /home ((including settings/confs located on .local or .config for instance) using Kopia, would be safe to say that I got what I need? Or fifos, sockets,device nodes, etc are also important if my pc crashes and I have to revert my files using the snapshot?
Sockets, fifos and device nodes, get usually created from application installs - they are used for (inter)process communication or, hence the name, to devices. They contain any actual data pe se and actually can’t really be backuped.
So, if you installed an app inside your home folder, which created these kind of files, your remedy would be to re-install the app after a crash or recovery.