takeover.sh

The kind of tool that I'm waiting for would allow me to log into a machine remotely, then reboot it once into a provided image (which could then run Linux in a ramdisk). I.e., take over the entire machine until it is restarted again. Does something like this exist? I want something like "kexec" but taking over the entire hardware at the lowest possible level. Edit, found this: https://github.com/marcan/takeover.sh But it's not as low level as I hoped, though it keeps the network running which is nice :)

If you're interested in the userspace machinations, as opposed to what goes on in the kernel, there's a great rundown on this StackOverflow answer: https://unix.stackexchange.com/questions/226872/how-to-shrin... There's also https://github.com/marcan/takeover.sh (previously on HN: https://news.ycombinator.com/item?id=13622301) Both of these share a similar premise - set up and transfer control to an in-memory root filesystem, in order to make major changes to the real root filesystem.