tree 85cf721d9711e7adc88c744c55ee12a96ee7114d
parent 79d7a625709242204993cffbd99ed734dc1c50a5
author Serge Bazanski <serge@nexantic.com> 1584016603 +0100
committer Serge Bazanski <serge@nexantic.com> 1584016603 +0100

init: remount to tmpfs

runsc needs to be able to pivot_root. According to @lorenz this does not
work from initramfs. This introduces a temporary fix to re-mount and
re-exec into a new root based on tmpfs.

A proper fix would be to use a real filesystem instead of initramfs
(like squashfs), but this will do for now.

We also use this opportunity to use devtmpfs instead of manually
managing /dev. This collides with the storage manager that tries to
create all storage nodes - we just remove that.

Test Plan: shouldn't change behaviour

X-Origin-Diff: phab/D433
GitOrigin-RevId: aa59fec6551bab1b1b9c2fe037dce410e550981b