Title.
I know there are tools to set up a linux distro’s installer on a USB flashdrive. What I’m looking for is slightly different: I want to install a linux distro (a Debian derivative, but am still unsure which) on a USB hard drive, but I want to do it from a running system, rather that have to boot into installer mode.
The rationale is that this is the only active machine I have ATM. I guess this exists since that’s how “live distros” with installers even function in the first place, but I haven’t had much luck searching for information.
NixOS sounds interesting for a Sometime when I have more experience, certainly!
So far I’ve only had experience with a Nix thing that functions like a package manager, something like a Nix version of Brew.