Hi all,

I have several hundreds of devices with different configuration files (for 
instance, a network configuration). When I perform upgrade of packages for bug 
fixing or configuration change, how can I be sure not to break the 
configuration by performing the upgrade?

For example:
I have some devices with 2 network interfaces per device.
The first configuration was given at the time devices were installed by a 
script sent by a server (hence modifying /etc/network/interfaces)
I want to add the second configuration to all these devices following a 
customer request.

If I connect to these devices, and perform an ipkg update and upgrade, I will 
end up with the initial configuration of /etc/network/interfaces as well as 
other files that could leads to broken configuration (for example, by modifying 
hosts file)

How could I tell ipkg not to overwrite the already present configuration files? 
I know there is an option when building ipkgs to indicate that files are config 
ones (conffiles in CONTROL directory of the ipk). And how to indicate ptxdist 
that there are some prerm, postrm, preinst and postinst scripts?


Thanks for your help.

Ben
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