Hello Stefan,
Like I said, I haven't tried this myself lately, but live-media-path allows you to change exactly the "/live" part, according to the manpage. So you could have something like live-media-path=/mycoolsquashfsgoeshere/ for your custom squashfs and live-media-path=/officialdebiansquashfsgoeshere/ for an official image, for example.
Thank you. This is exactly what I was looking for. I was so focused on thinking that live-media/bootfrom wanted a specific partition that I didn't notice that option available. It turns out I didn't even need to specify the live-media option for this to work!
Thanks, -- Ben Westover
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