How can I back up my Fedora system's /home + whole configuration + everything installed by user?

edit

You should probably not worry about the entire OS... Just make sure you get a backup of your installed packages:

rpm -qa > ~/mystorage/my.system.stuff

(You can do a re-install better and faster from any media than you can fiddling with backups of the ENTIRE filesystem)

THEN:

You have many options (any of these will do):

1. tar -cf /mystorage/funkychicken.home.tar /home/funkychicken
2. cp -rp /home/funkychicken /mystorage/funkychicken.backup
3. rsync -au /home/funkychicken /mystorage/funkychicken.backup . . .

...or create BTRFS with Snapper support :) Can you also use dd

dd if=/dev/mydatadiskorpartition | gzip -9 > backupofmydatadiskorpartition.backup

You could use rsync:

$ rsync --recursive --times --links --delete --numeric-ids --compress --verbose --progress --itemize-changes --protect-args ~/ /PATHWHERETOSAVEBACKUP/

If you don't feel confortable with command line interface, and since rsync has lots of options, you could try using grsync (which is a GUI for rsync and has lots of tooltips explaining every option).