From: Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua>
To: William Lee Irwin III <wli@holomorphy.com>
Subject: Re: initrd does not boot in 2.6.3, working in 2.4.25
Date: Fri, 5 Mar 2004 18:31:31 +0200
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On Friday 05 March 2004 13:04, William Lee Irwin III wrote:
> On Fri, Mar 05, 2004 at 12:38:53PM +0200, vda wrote:
> > I am using initrd in order to configure ethernet and
> > mount NFS root. It works with 2.4.25 kernel, like this:
> > linld image=2425 initrd=image.gz vga=4 "cl=root=/dev/ram
> > init=/linuxrc.nfs.vda devfs=mount" that is, it unpacks image.gz into
> > ramdisk #0, mounts it,
> > mounts devfs on /dev and execs /linuxrc.nfs.vda.
> > When I tried to boot 2.6.3 with
> > linld image=263 initrd=image.gz vga=4 "cl=root=/dev/ram
> > init=/linuxrc.nfs.vda devfs=mount" it unpacks image.gz into ramdisk #0,
> > mounts it,
> > mounts devfs on /dev and ... complains about NFS server.
> > Wow. I did not say /dev/nfs, what NFS?
> > ...
> > VFS: Mounted root (ext2 filesystem)
> > Mounted devfs on /dev
> > 	(here 2.4.25 would say "Freed unused kernel mem..." and exec init)
> > Root-NFS: No NFS server available, giving up
> > VFS: Unable to mount root fs via NFS, trying floppy
> > VFS: Insert root floppy and press ENTER
> > Omitting devfs=mount does not help.
> > root=/dev/ram0, root=/dev/rd/0 does not help.
> > Config attached.
>
> nfsroot works in 2.6.3 and above here. I'm not sure you need it per se
> for initrd's; I think the way it's intended to work with that is for
> the scripts to configure network interfaces, mount the nfsroot, and then
> pivot_root(). Can you try without initrd?
>
> Also, try passing ip= for these things.

I run these things everyday.
nfsroot and ip=.... works, no question about that.

Just imagine all-modular kernel which needs to load ethernet driver first,
*then* mount nfs root and pivot_root. Or nfsroot-over-wireless :)
--
vda

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