HD Install :: feh not sticking around after reboot
When running frugal, liveCD, or any other compressed versions then deb packages should be treated like any other dsl package. That being, keep an uninstalled copy of the .deb(s) and then upon bootup use dpkg -i otherwise, you would be adding so much to the filetool list and also have the same issues of backing up and restoring large static packages that is very inefficent and not at all desireable.
You said you have a frugal install, so no, it won't stick around. You can have added files re-added automatically when you reboot, but anything that you remove will return. The filesystem is running in RAM, not running as an installed system like in a typical OS. The only way to permanently remove files from frugal is to remaster the KNOPPIX file. You could also set up /opt/bootlocal.sh to automatcally delete any files you don't want, but it would probably be more convenient to remaster.
original here.