[puredyne] custom live system

Dear community, I want to create a custom live-dvd from my system for backups. I tried it to do with uck, but when I want to choose the iso-file I get: File ~/puredyne.iso is not an Ubuntu Desktop Edition ISO image, alternate CDs can be remastered using backend scripts. Does someone know somethin

[puredyne] problem after update

Dear community, after sudo apt-get update I get: > W: GPG error: http://ppa.launchpad.net karmic Release: Die folgenden > Signaturen konnten nicht überprüft werden, weil ihr öffentlicher Schlüssel > nicht verfügbar ist: NO_PUBKEY 4822C80CB3227623 > W: Duplicate sources.list entry http://ppa.launch