AAC

Hi there, I have successfully created a an image of my system, as well as creating a live restore iso which works well. What i want to do is edit the menu of the restore iso. I have taken the zip also of my image, and as a test, before even editing any files, ran the following command i found on here to recreate the iso from the zip. Unfortunately this does not work. BalenaEtcher complains of missing partition tables and it does not boot. Can someone please advise what is the simplest and easiset...