Linux_hpc_swstack - May 2008 - /etc/dhcpd_sunhpc.conf for the beta

I''m looking at one of our test head nodes that has the beta installed.
I see that dhcpd is configured via /etc/dhcpd_sunhpc.conf.  Can I safely
modify this file to add an entry for a host?  I don''t want to add it to
the hostlist since it will be running a different kernel for testing.

I notice that the file is owned by the sunhpc-configuration RPM but
it''s
not marked as a configuration file.  This makes me hesitant to modify
it, especially since it will be overwritten if sunhpc-configuration is
ever upgraded.  Is that a bug?

Cheers,
Jody

-- 
Jody McIntyre - Linux Kernel Engineer, Sun HPC

/etc/dhcpd_sunhpc.conf is referring dhcp_hostlist and dhcp_hostlist_datamover
with "include" option. If you want to add hostlist, please add to
these files.
So, no necessary to modify dhcpd_sunhpc.conf

Thanks,
-Ihara

Jody McIntyre wrote:
> I''m looking at one of our test head nodes that has the beta
installed.
> I see that dhcpd is configured via /etc/dhcpd_sunhpc.conf.  Can I safely
> modify this file to add an entry for a host?  I don''t want to add
it to
> the hostlist since it will be running a different kernel for testing.
> 
> I notice that the file is owned by the sunhpc-configuration RPM but
it''s
> not marked as a configuration file.  This makes me hesitant to modify
> it, especially since it will be overwritten if sunhpc-configuration is
> ever upgraded.  Is that a bug?
> 
> Cheers,
> Jody
>

Hi Ihara,

On Thu, May 29, 2008 at 10:56:07AM +0900, Shuichi Ihara wrote:
> /etc/dhcpd_sunhpc.conf is referring dhcp_hostlist and
> dhcp_hostlist_datamover with "include" option. If you want to add
> hostlist, please add to these files.
As I mentioned, I want to add a host with different options from the
defaults.  So I need to modify this file.

dhcp_hostlist and dhcp_hostlist_datamover are also not marked as config
files, so they will be overwritten on sunhpc-configuration upgrade too.
That really looks like a bug to me.

Cheers,
Jody
> So, no necessary to modify dhcpd_sunhpc.conf
> 
> Thanks,
> -Ihara
> 
> Jody McIntyre wrote:
> >I''m looking at one of our test head nodes that has the beta
installed.
> >I see that dhcpd is configured via /etc/dhcpd_sunhpc.conf.  Can I
safely
> >modify this file to add an entry for a host?  I don''t want to
add it to
> >the hostlist since it will be running a different kernel for testing.
> >
> >I notice that the file is owned by the sunhpc-configuration RPM but
it''s
> >not marked as a configuration file.  This makes me hesitant to modify
> >it, especially since it will be overwritten if sunhpc-configuration is
> >ever upgraded.  Is that a bug?
> >
> >Cheers,
> >Jody
> >
-- 
Jody McIntyre - Linux Kernel Engineer, Sun HPC

Jody

Jody McIntyre wrote:
> Hi Ihara,
> 
> On Thu, May 29, 2008 at 10:56:07AM +0900, Shuichi Ihara wrote:
> 
>> /etc/dhcpd_sunhpc.conf is referring dhcp_hostlist and
>> dhcp_hostlist_datamover with "include" option. If you want to
add
>> hostlist, please add to these files.
> 
> As I mentioned, I want to add a host with different options from the
> defaults.  So I need to modify this file.
OK, what kind of changes do you need? If it will be needed in general,
I will add that options as default.
> 
> dhcp_hostlist and dhcp_hostlist_datamover are also not marked as config
> files, so they will be overwritten on sunhpc-configuration upgrade too.
> That really looks like a bug to me.
Yes, thanks for this feedback. I will check and fix it.

-Ihara

Hi Ihara,

On Fri, May 30, 2008 at 09:28:29AM +0900, Shuichi Ihara wrote:
> OK, what kind of changes do you need? If it will be needed in general,
> I will add that options as default.
It will need to run the kernel I''m testing.  This is not a good idea
for
general use - nobody else should run my test kernels :)

Cheers,
Jody

-- 
Jody McIntyre - Linux Kernel Engineer, Sun HPC