Method for customizing release cdrom iso
It should be possible to use a program like xorriso to add files to a Sortix release cdrom iso, and use that to configure the defaults. This will be especially useful for unattended installations/upgdes, but also doing many upgrades, or adding simply getting files (ssh keys, sshd keys, random seed) into live environments. GRUB defaults could be changed to pick a different boot option, select default ports, cut down the release size maybe, etc. It could also be useful for system testing if a nightly iso could easily be augmented to automatically boot into a special test environment that runs in qemu, without the need to specially build the iso in the first place, but being able to do it after the fact. It should also be possible to put additional files onto an iso, such as ports like quake that can't be commercially redistributed. This should be able to run natively. It could be combined with a native tool for fetching a release iso for the system that's currently running.