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Date:	Thu, 23 Jun 2005 09:20:10 +0200
From:	Cyprien Laplace <cyprien@cypou.net>
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To:	linux-mips@linux-mips.org
Subject: Re: booting error on db1550 for kernel 2.4.31
References: <2db32b720506221648eed011b@mail.gmail.com>
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rolf liu wrote:

>I compiled the kernel 2.4.31 using sde tools. Download linux to db1550
>through yamon. but the kernel can't find the NFS root. I tried the NFS
>system from other linux box, and the NFS is ok. Who met this same
>problem?
>
>Looking up port of RPC 100003/2 on 10.200.0.198
>RPC: sendmsg returned error 128
>portmap: RPC call returned error 128
>Root-NFS: Unable to get nfsd port number from server, using default
>Looking up port of RPC 100005/1 on 10.200.0.198
>RPC: sendmsg returned error 128
>portmap: RPC call returned error 128
>Root-NFS: Unable to get mountd port number from server, using default
>RPC: sendmsg returned error 128
>mount: RPC call returned error 128
>Root-NFS: Server returned error -128 while mounting /nfsroot/mipsel
>VFS: Unable to mount root fs via NFS, trying floppy.
>kmod: failed to exec /sbin/modprobe -s -k block-major-2, errno = 2
>VFS: Cannot open root device "" or 02:00
>Please append a correct "root=" boot option
>Kernel panic: VFS: Unable to mount root fs on 02:00 
>
>Thanks for the suggestion
>
>  
>
What cmdline did you give to the kernel ?
Had it an IP address ?
Can you tcpdump your local ethernet traffic ? Is there any correct ARP 
traffic ?

Regards,
Cyp