Re: [PATCH] auto setup network without netroot

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On Mon, 30 Jan 2012 at 06:43 GMT, Dave Young <dyoung@xxxxxxxxxx> wrote:
> Current dracut network only will be setup when netroot is used. But there are
> some cases we need network even without netroot. For example kdump will need
> copy vmcore to remote machine via scp or nfs mount. OTOH, if we use dracut as
> a recovery system the network is helpful even root is not a network device.
> This implementation is based on the manually bring up method. Here add a kernel
> cmdline argument rd.neednet. If rd.neednet is set dracut will bring up network
> with ifup $INTERFACE -m. If netroot is used we still keep original behavior.

I don't think we really need to introduce a new cmdline, I think we
can re-use ip= cmdline. Currently, if ip= is specified but netroot is
not, ip= will be ignored. We can change this, let dracut bring up
network as long as we have ip=, even we don't have netroot.

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