trkdev
"Boot from your existing TRK 3.1, modify scripts, test them if you like and run updatetrk. This will put your updated scripts (from /bin, /sbin and /etc) back to a renewed ISO file. Check out the howto on usage of updatetrk. If you want to add files to everything in /usr, you need to use the old way, since the compressed ramfilesystem is readonly."
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