Thanks for answering! Now I've got a better picture of what you're trying to achieve. However, unfortunately, I've yet to dabble into LFS. So I'm afraid that I might not be that helpful 😭. Wish you the best of luck though!
The official manual page for xorriso is probably the best place to start. Unfortunately it mostly glosses over how it's compatible with mkisofs and doesn't further delve too much into what mkisofs does and thus how to engage with the -b flag. Fortunately, that information can be found on the related manual page for xorrisofs.
Please feel free to notify me if I can be of further help :blush: !
Edit: For anyone reading this in the future ECMA-119 is freely distributable and seems to conform to ISO 9660. ECMA also have versions of some of the specs referenced by ISO 9660. (ECMA-6, ECMA-35, ECMA-43)
Will do. I was gonna start by reading ISO 9660 and I found out it costs 200 dollars from standards.iso.org. Which is a shame because there's a bunch of other ISO standards referenced in 9660 which would cost even more money to read. I always heard people reference these standards but I had no idea they were so inaccessible to regular users. But I think I found some kind of annotated copy of the spec to read,