Hi again! I'm trying to create a few modules that could be added to the /casper directory to be automatically mounted when my Live CD boots. Yes, I am fully aware that I could just add everything I need to my package list and that I'll have to keep all those modules updated manually, but I'm experimenting here, so please bear with me :)
The principle, of course, is always the same: You create a directory that contains the files that I want in the module and the squash it up. The big question, then, is how to best create this directory. I have had the best success with programs that install in /opt: I just create a new directory, bind-mount it to /opt and start installing. The problem, though, is that sometimes, I'd like to install programs that spread out all over the system: Insist on writing to /etc, install kernel modules, that kind of stuff. Also, sometimes I'd like to add a Debian package to the mix as well. I tried playing around with the union fs like this: - create the new directory - add it to the '/' union before /cow - set /cow to read-only in the union - install my stuff - set /cow read-write in the union - set my new directory read-only in the union - remove my new directory from the union, if unionctl lets me Then comes the fun part, though: Clean up the directory. Do I need to keep etc/ld.so.cache? What about that new ifup script? A new version of libsysfs??? There's a lot of trial and error going on before I can squash up my directory. So the question: Is there a better way to create Casper modules for my live CD? How are you going about that? Any input will be much appreciated. Thanks, ~Juergen
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