[vserver] Sending signals to PID 1

Hey,

I'm trying to build a NFSROOT for FAI [0] within a vserver guest, but
when it install sysvinit-core the postinst tries to send a USR1 signal
to PID 1 which fails with no such PID.

I'm using "sysv" as the init style for the vserver guest, is it
possible to allow to send signals to PID 1, even if they're ignored?

Cheers,
Andrew

[0] https://fai-project.org

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Andrew Ruthven, Wellington, New Zealand
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