New answers tagged livecd
Try adding the -e flag to xvfb-run so you can see what is going wrong: xvfb-run -e /tmp/xvfb-errors.txt firefox & Now this may show you some error messages: cat /tmp/xvfb-errors.txt
It seems impossible to copy base packages from boot media to RAM to build an alternative APT repository for installation with current Debian Installer. But you might be able to eject the media after boot and continue installation using "netboot" image which would download everything from the internet, not out of boot media. You can remove it permanently ...
I have had some successful experience with Live System (in the Debian corresponding package is called live-build). This tool allows to create custom live images and installers with specified version of kernel, architecture, packages and custom content. May be it's not exactly what do you need, but anyway I hope it will be useful.
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