Check out Ventoy! Unless you need a single ISO on the drive, it’s just something you install to it and then copy and paste ISOs to the folder on it. No flashing needed, it runs them for you. I’ve got 128GB drives almost filled with every ISO I could possibly want.
Also worth mentioning you can copy more files on it afterwards and it works as normal storage too.
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It still works for installing the OS though, at least in the case of Nix. I’ve not tried Guix so far, but I’ve installed NixOS on two machines in the past year using Ventoy.
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Why is everyone suggesting ventoy and stuff and no one is telling you to just reformat drives you no longer need? Or are they all live OSs in use? Am I missing something?
I mean, they clearly already know how to do a fresh image of a live OS on a USB key. But the number of keys involved sounds like they don’t know you only need one.
