From: Darren Hart <dvhart@linux.intel.com>
To: "Jürgen Messerer" <juergen.messerer@bbv.ch>
Cc: "yocto@yoctoproject.org" <yocto@yoctoproject.org>
Subject: Re: qemux86 Image won't boot from CF
Date: Wed, 13 Jun 2012 08:56:12 -0700 [thread overview]
Message-ID: <4FD8B81C.2030603@linux.intel.com> (raw)
In-Reply-To: <A7B59F6D52627C44813C136D437B0832068BC78CACF3@TKSSREX01.outnet.ch>
On 06/12/2012 04:07 AM, Jürgen Messerer wrote:
> Hi everybody.
>
>
>
> The following problem occurs when I try to start a x86 linux system from
> CF-Card.
>
>
>
> I have generate a qemux86 core-image-minimal image with the latest pokey.
>
...
> VFS: Unable to mount root fs via NFS, trying floppy.
>
> VFS: Cannot open root device "hdb1" or unknown-block(2,0)
>
> Please append a correct "root=" boot option; here are the available
> partitions:
>
> VFS: Unable to mount root fs on unknown-block(2,0)
The kernel should list the known block devices. It isn't finding any. So
either you don't have the driver for it installed, or it is a removable
device. As Andrea pointed out, rootwait can help with the latter.
However, it should be noted that the qemux86 machine is intended to be
booted under emulation, and has the drivers required for that scenario.
If you want to boot on real hardware, you really should be creating a
machine config and a kernel bbappend with whatever drivers you need for
your hardware in a config fragment.
--
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel
next prev parent reply other threads:[~2012-06-13 15:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-12 11:07 qemux86 Image won't boot from CF Jürgen Messerer
2012-06-12 12:04 ` Andrea Adami
2012-06-12 12:08 ` Andrea Adami
2012-06-13 8:13 ` Jürgen Messerer
2012-06-13 15:56 ` Darren Hart [this message]
2012-06-13 16:19 ` Jürgen Messerer
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