Re: initramfs for /dev/console with udev?

From: Rob Landley
Date: Wed Nov 02 2005 - 22:40:47 EST


On Wednesday 02 November 2005 16:20, Robert Schwebel wrote:
> Hi,
>
> If I understand Documentation/early-userspace/README correctly it should
> be possible to solve the "unable to open an initial console" problem by
> using a file like
>
> dir /dev 0755 0 0
> nod /dev/console 0600 0 0 c 5 1
> nod /dev/null 0600 0 0 c 1 3
> dir /root 0700 0 0
>
> and let CONFIG_INITRAMFS_SOURCE point to that file. The gpio archive is
> built correctly with that, but my kernel doesn't seem to use it.

1) You have no init in initramfs, so it goes ahead and mounts whatever root=
points to over it. I'm guessing that's where it's looking for /dev/console
from.

2) What's the directory /root for?

> Is anything else needed to use an initrd, like a command line argument?
> My kernel boots from a nfs partition, so it sets nfsroot=...

Note that initramfs and initrd and very different things.

> As I still get the "unable to open an initial console" message it looks
> like the initramfs is not extracted, mounted or however that works.
>
> Robert

Rob
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