[yocto] qemu boot fail(root-nfs: unknown option: mountprog=21111)

[Bruce Ashfield]

On 11-09-08 11:09 AM, Scott Garman wrote:
> On 09/07/2011 10:49 PM, 蔡振军 wrote:
>> Hi ALL
>>
>> QEMU run well with a pre-build kernel image from yocto site. Now just
>> change the kernel to one built myself, some error information appeared
>> about nfs. My kernel image version is 2.6.35 configured by
>> versatile_defconfig. Error information as following:
>>
>> “root-nfs: unknown option: mountprog=21111”,this message search nothing
>> on google.
>>
>> Is there something wrong with .config? Add normally is there some
>> special configuration I should do with kernel to fit QEMU?
> 
> Hi Feye,
> 
> The linux-yocto kernel has patches in it to enable booting via a
> userspace NFS server, which needs to use high port numbers for its
> mountd and nfsd daemons. You will need to include these patches in your
> custom kernel if you wish to continue using our userspace NFS boot method.

I already replied to this last night:

"You can't change out the kernel version / tree and expect to use the full
functionality provided by the linux-yocto kernel. In this case there are
changes to NFS and rpc to support alternate rpc ports being used to support
usermode NFS. You would need to port and test the patches for this
which can be found on yocto/standard/base"

Cheers,

Bruce

"

> 
> Bruce, can you point Feye to this patchset?
> 
> Scott
>