On Wed, 12 Oct 2011, Mike Dodd wrote:
> I can't boot a 7250 to Debian Sarge over NFS. I've read the "Linux for
> ARM on TS-72XX User's Guide" and _think_ I've followed all the steps, but
> the 7250 just hangs before I see even the first indication that the
> kernel is loading.
>
> After the Redboot messages, the 7250 hangs after "Using base address
> 0x00218000 and length 0x00?J??"
>
> I put together a Web page describing how I set up NFS, and the Redboot
> session that should, but doesn't, boot into Debian. Please see
> <http://mdodd.com/files/redboot.html>
>
> I believe I've set up the NFS host correctly:
>
> * Downloaded and untarred debian-sarge-256MB-05-01-2006.tar.bz2 to
> /ts5250-debian on the Linux host
> * Edited /etc/exports on the Linux host(I can mount and use this share on
> another Linux bost)
> * Edited /ts5250-debian/etc/fstab in the on the Linux host to specify an
> NFS root path for Debian on the 7250
> * Configured Redboot to boot into NFS with:
> fis load vmlinux
> exec -c "console=ttyAM1,115200 ip=dhcp nfsroot=192.168.1.20:/ts7250-debian"
>
> This same 7250 boots into TS-Linux and works on the network if I change
> the Redboot configuration to "root=/dev/mtdblock1".
>
> Will someone please have a look at my details on
> <http://mdodd.com/files/redboot.html> and tell me if you see anything I'm
> doing wrong?
Ok I boot into the debian image via NFS. The difference with your setup is
is that I have line like
exec -c "console=ttyAM1,115200 ip=dhcp nfsroot=/ts7250-debian"
and in my DHCP settings on my Linux DHCP3 server I have an entry for the
board like this (substitute your name and board mac address...
# TS7260 ARM SBC ethernet
host scandium {
hardware ethernet 00:d0:69:40:00:4c;
fixed-address 192.168.1.50;
next-server 192.168.1.20;
}
The "next-server" parameter is instead of trying to specify the nfs server
address in the kernel command line. Given the kernel crashes almost
immediately, I'm wondering if the nfsroot string your are giving is valid?
cheers
Jim
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