Re: [PATCH 6/6] mdmon: allow disabling "@dmon" command name at compile time

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On 08/28/2013 07:15 AM, NeilBrown wrote:

> Can you help me understand?  What is anaconda even looking for mdmon?
> Does it need exactly "mdmon" or would "@mdmon" be OK?

To be precise, it's not anaconda but "loader", the C program that starts
anaconda and cleans up after it. It looks exactly for "mdmon". See
https://git.fedorahosted.org/cgit/anaconda.git/tree/loader/shutdown.c?h=rhel6-branch#n59

> Does "started by systemd" mean that "systemctl start mdmon@mdXXX.service" was
> used to start it?  In that case can't we put something in
> systemd/mdmon@.service to make the right thing happen?

Sorry for having explained unclearly. This is *not* a systemd
environment. There is no regular "init" process running AFAICT, "loader"
takes that role as far as necessary in the installation environment.

> 
> I'm going to hold off on this one for the moment.

If this isn't applied, in the RHEL/CentOS 6 installation environment,
"loader" will kill mdmon, and a subsequent "mdadm --wait-clean" will
hang forever.

Martin

> 
> All others applied.
> 
> Thanks,
> NeilBrown

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