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On Sun, 23 Nov 2014 17:42:52 -0600
Dennis Gilmore <dennis(a)ausil.us> wrote:
<snip>
the network autodetection is broken and systemd's predictable
naming
actually makes it unpredicatable in the cloud/vm use cases.we probably
should explicitly turn it off in the boot arguments.
To give a little more detail of what actually happens here and to try
and illustrate why systemd's predictabvle naming is broken for the use
cases we are looking at.
the link argument tells anaconda to configure the device with a link.
it only works when you have a single nic with a link. The device name
used in the install environment is what is hardcoded into the config
files of the installed image. anaconda makes a big assumption that the
environment that is used when installing is the same environment that
the system will be ran in. during f21 naming was bouncing backwards and
forwards between ens3 and eth0 but depending on what was in use when
the system was installed effected what was in use in the cloud image.
the outcome is that unless we turn off predictable naming it could
randomly change under us and not work. if we turn off predictable
naming we should always get eth0 and things should work. there is
always a chance something goes wrong and no networking. to deal with
that NetworkManager probably needs changing.
Dennis
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