Hi Dave,
I think you are right that I found the place to do it, but I don't know
what syntax to use to set the environment variable for
netboot=dhcp 0x4000000; setenv bootargs ${bootargs} root='/dev/nfs'
rootpath=${rootpath} ip=dhcp; bootm 0x4000000
I am not sure what needs escaping, etc. Can I just add single quotes
around the whole and escape the ticks? I guess I'll play with it.
Regards,
Dale
On Tue, Aug 23, 2022 at 5:55 PM David Harold Edward MacMahon <
dav...@berkeley.edu> wrote:
> Hi, Dale,
>
> It sounds like you’ve found where to set the `vers=4` option. If that
> doesn’t work, it’s possible that the ROACH2s don’t support NFSv4. If
> that's the case (I’m not sure it is), then you may have to look into
> exporting the root filesystem via NFSv3 instead.
>
> I always have to double check the MTU configuration on the NFS server’s
> network interface. I think setting it to larger than 1500 won’t work for
> the ROACH2s.
>
> I’m curious to know what the solution ends up being!
>
> Cheers,
> Dave
>
> On Aug 23, 2022, at 12:08 PM, Gary, Dale E <dale.e.g...@njit.edu> wrote:
>
> Hi All,
>
> I upgraded my remote boot server to a new machine running ubuntu 20.04,
> and although I tried to set everything up the same for remote booting the
> ROACH2s, the process fails as shown in the attached file because the root
> file system could not be mounted. I found one suggestion on the web to
> edit the Linux/PPC load configuration to add vers=4,tcp to the line, i.e.
> it might look like this:
>
> root=/dev/nfs nfsroot=192.100.16.206:/srv/roach2_boot/etch,vers=4,tcp
> ip=dhcp
>
> but I cannot find any file where that configuration is set. There is a
> file in /srv/roach2_boot called pxelinux.cfg that looks promising, but it
> is an empty file. Am I on the right track?
>
> Any suggestions?
> Thanks,
> Dale
>
>
>
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