Re: booting without initrd

[Arjan van de Ven]

On Thu, 2006-06-08 at 13:40 -0400, Rahul Karnik wrote:
> On 6/7/06, Ram Gupta <ram.gupta5@xxxxxxxxx> wrote:
> > I am trying to boot with 2.6.16  kernel at my desktop running fedora
> > core 4 . It does not boot without initrd generating the message "VFS:
> > can not open device "804" or unknown-block(8,4)
> > Please append a correct "root=" boot option
> > Kernel panic - not syncing : VFS:Unable to mount root fs on unknown-block(8,4)
> 
> AFAIK Fedora sets up the kernel command line with "root=LABEL=/" in
> grub.conf and therefore needs the initrd in order to work correctly.
> If you do not want an initrd, then change this to
> "root=/dev/<your_disk>" in grub.conf. 

it's more than that; also udev is used from the initrd to populate a
ramfs /dev, if you go without the initrd you need to populate the
*real* /dev manually first

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