Hi!
As you might know Grml provides a feature named persistency which allows you to store your settings/software and reuse them on reboot. The code that provides that feature is part of Debian's live-boot, which is what we're using as base for our live-boot-grml.
The relevant bootoption was renamed from "persistent" to "persistence" by Debian's live-boot developers recently, sadly our docs at http://wiki.grml.org/doku.php?id=persistency don't match reality anymore.
As Charles Hewson already noted in the Grml wiki (thanks, Charles!) the best resources WRT persistency are man live-boot, live-persistence.conf and live-snapshot as well as http://live.debian.net/manual/html/live-manual/customizing-run-time-behaviou... Note: the live-manual matches the behaviour of the old "persistent" code, not the one with "persistence" yet. A discussion around those changes are available in the thread at https://lists.debian.org/debian-live/2012/04/msg00110.html
Is there anyone willing to help us in improving the persistency documentation for Debian/Grml?
regards, -mika-