How to pause shutdown?

[Scott James Remnant]

As far as I'm aware, Ubuntu still uses SysV scripts for shutdown, so there's
no reason the previous runlevel scripts should not work.

On Tue, Feb 22, 2011 at 12:07 PM, Henning Moll <newsScott at gmx.de> wrote:

> Hi,
>
> i have a direct question to upstart, but please let me first give you some
> background information:
>
> on my ubuntu desktop i implemented a system to automatically backup my
> system on a daily basis via rsnapshot. The backup is started by anacron.
> While the backup is running, a lockfile is present.
>
> To avoid broken backups i tried to pause a user intended shutdown as long
> as the lockfile exists. Up to now i was able to achieve this by introducing
> some runlevel scripts (rc1.d/K12backup_wait and rc0.d/K12backup_wait). The
> script behind these links just waits until the lockfile is no longer valid.
> After this, the shutdown continued just as normal.
>
> Now that Ubuntu is using upstream more and more, i am not able to this the
> same way (i recently installed 10.10).
>
> Now my question: Is it possible to implement this with upstart? How?
> For my backup solution it is also neccessary that network (cable lan) and
> sshd stays intact.
>
> Best regards
> Henning
>
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