Making an ISO image of a hard drive means creating a 1-to-1 backup copy that consists of a .iso file. Here are two ways to do just that.

To Dual Boot, say Windows and Ubuntu, on separate Hard Drives, you must first meet the prerequisite and then follow the steps mentioned here.

I don't know what Fedora version you mean exactly, but up to Fedora 1, you could use "/sbin/mkbootdisk", as root, to create a booting floppy disk.

It looks like a floppy won't be big enough, so I believe for this to work I need to create a small hard drive image (about 5 megs will work).<BR><BR>It appears I can do this with dd, but I don't ...

It's handy to have an external, bootable macOS Ventura installer, but you practically have to fight Apple to make one. Here's what you have to do.