Messages in this thread | | | Date | Thu, 8 Jun 2006 23:33:50 -0400 | From | Joe Korty <> | Subject | Re: booting without initrd |
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On Thu, Jun 08, 2006 at 06:43:25PM -0700, Paul Dickson wrote: > On Fri, 09 Jun 2006 02:40:59 +0200, Arjan van de Ven wrote: > > On Thu, 2006-06-08 at 13:40 -0400, Rahul Karnik wrote: > > > On 6/7/06, Ram Gupta <ram.gupta5@gmail.com> 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
When I do the following to FC5, I am able to boot kernel.org kernels w/o an initrd:
# mount --bind / /mnt # cd /mnt/dev # mknod null c 1 3 # mknod console c 5 1 # for i in $(seq 0 9); do mknod tty$i c 4 $i; done # cd / # umount /mnt
IMHO, FC5's failure to set up a minimal disk-based /dev like this is a bug on its part.
Regards, Joe - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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