HD Install :: how to save config after reboot ???
For 4.2: /opt/.filetool.lst.
Add paths for whatever you want included in the backup (use an editor like beaver or vim).
In earlier versions, .filetool.lst is in the /home/dsl directory.
note: "hidden" files show up in emelFM by clicking the 'h' button at the top (or 'ls -a' from the terminal).
original here.