This is a request for official documentation. As I understand it, kernel command line parameters, e.g.:

root=/dev/sda1 foo=bar

That are not recognized by the kernel itself are passed on to init, on linux now most commonly systemd.

While the kernel's own parameters are largely documented, I can't find any for systemd itself. man systemd does refer to a handful of things but it does not seem to cover this, and searching online has led me nowhere.


As @Bigon notes, the official documentation you are looking for is in man kernel-command-line.

  • I thought there was more it but I think this is as good as it is likely to get! – goldilocks Dec 28 '16 at 19:27

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