Re: [Embeddedxen-devel] Mounting root filesystem through NFS

[Rossier D. <Dan...@he...>]

Hi Salvatore,

Sorry for my late answer.

> -----Original Message-----
> From: Salvatore Campagna [mailto:sal...@gm...]
> Sent: mardi 9 novembre 2010 17:16
> To: emb...@li...
> Subject: [Embeddedxen-devel] Mounting root filesystem through NFS
> 
> Hi, I'm writing since I'm trying to run EmbeddedXen on top of QEMU.
> I have the root filesystem in /home/user/opt/boards/filesystem/rootfs-
> oabi/
> and the machine where the NFS server is running has ip=10.0.2.15
> 
> I run qeum with the following command
> 
> sudo qemu-system-arm -localtime -M mainstone -kernel
> xen/arch/arm/boot/zImage -append "root=/dev/nfs
> nfsroot=10.0.2.15:/home/user/opt/boards/filesystem/rootfs-oabi rw
> ip=dhcp" -pflash ./flash1 -pflash ./flash2 -s -m 256 -net nic -net
> tap,ifname=$iface,script=/etc/qemu-ifup -serial vc:1000x500
> 
> and before mounting the root filesystem it prints the following:
> 
> OVERRUN
> done!
> [DOM0] IP-Config: Complete:
>    device=eth0, addr=192.168.1.150, mask=255.255.55.0, gw=192.168.1.1
>    host=qemu0, domain=, nis-domani=(none)
>    bootserver=192.168.1.1, rootserver=192.168.1.1, rootpath= [DOM0] <5>
> Looking up port of RPC 100003/2 on 192.168.1.1 [DOM0] <5> portmap: server
> 192.168.1.1 not responding, timed out [DOM0] <3> Root-NFS: Unable to get
> nfsd port number for server, using default ...
> 
> It is clear that the ip address where the NFS server should be is not right...
> 
> Is there any way to change the NFS configuration parameters in order to put
> the right values?
> Is there something wrong in the command line?

Indeed, you can edit .cmdline.h which is located in the root tree, and adapt the rootserver IP.

> 
> I tryied to append the NFS parameters through the kernel command line but
> it lokks like it is not working.

No, in this version, the command line is not processed correctly.

I will update a new release in the coming days, hopefully before end of December.

Cheers
Daniel