[Bug 348455] Re: init: transfer state across re-exec

[Jacek Konieczny]

@Scott: do the connections to clients and pending D-Bus messages really
need transfering? Re-exec would be an exceptional event anyway and the
goal is to keep system running with the new init daemon, so upgrade can
continue and, maybe, a clean shut-down can  be done. Will anything
disastrous happen if the pending D-Bus messages are just flushed (errors
raised if the requests cannot be handled immediately) and connection are
just closed before the re-exec?

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init: transfer state across re-exec
https://bugs.launchpad.net/bugs/348455
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Status in Upstart: Triaged
Status in upstart  0.3 series: Won't Fix
Status in PLD Linux Distribution: New

Bug description:
Upstart needs to be able to transfer its state across a re-exec.  This can then be used for safely restarting (e.g. after a libc or upstart upgrade), and for changing of root device (e.g. initramfs to full system)