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User Mode Linux

Oh man, what a blast from the past. I have fond memories of learning linux networking with netkit (based on UML).

UML was a really really cool piece of technology.

If anybody is wondering, User Mode Linux lets you boot a Linux kernel as a normal linux process, and then run an userspace, still in a linux process. This is from 2001. Super cool.

I was trying to remember what this was called the other day, for some reason.

It turns out that if you run a uml kernel and point its root at the root of the disk the host Linux is running on, there's a hell of a turf war between the two and no-one wins.

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