From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Young Subject: Re: [PATCH] auto setup network without netroot Date: Mon, 30 Jan 2012 17:49:24 +0800 Message-ID: <4F2667A4.4080203@redhat.com> References: <20120130064305.GA7108@darkstar.nay.redhat.com> <4F265A0B.1000402@redhat.com> <4F265A22.2090407@gmail.com> <4F265C01.4010701@redhat.com> <4F265CDB.7070204@gmail.com> <4F266004.5080501@redhat.com> <4F266389.70303@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4F266389.70303-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: initramfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Cong Wang Cc: initramfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org On 01/30/2012 05:31 PM, Cong Wang wrote: > On 01/30/2012 05:16 PM, Dave Young wrote: >> >> How to say... >> There's many different configs for network like: >> 1. ip={dhcp|on|any|dhcp6|auto6|ibft} >> 2. ip=:{dhcp|on|any|dhcp6|auto6} >> 3. ip=:[ >> ]:::::{none|off} >> 4. ifname= >> 5. bootdev= >> 6. root=nfs:[snip] >> >> They are all possibly be used, IHMO they are not good options for this >> patch using. For example there's no NIC specified in 1 and 3, we will >> still have to bring up the default > > > Kdump module can make sure that at least one NIC will be specified, if > there is ip=. > >> >> Also this is a general feature, maybe it will be used by users other >> than kdump. For kdump I think we can use proper ip= plus rd.neednet=1 >> > > Why? If we can re-use ip=, it will imply rd.neednet=1, so again, > rd.neednet is not needed. why choose ip=? what if user pass ifname= or bootdev= without ip=? I want to benefit to other user as well, from semantic point of view one global switch like rd.neednet is more clear then reuse the various other options. -- Thanks Dave