Thanks for the reply Marc. I am able to mount the share from another
machine on the network without problems. I interrupted the uboot and typed
printenv, which produces this output:
Hit any key to stop autoboot: 0
=> printenv
baudrate=115200
bootargs=console=ttyS0,115200
bootcmd=run netboot
bootdelay=2
bootfile=uImage
clearenv=protect off fff40000 fff7ffff;era fff40000 fff7ffff;protect on
fff40000 fff7ffff
ethact=ppc_4xx_eth0
ethaddr=02:44:01:02:05:06
hostname=roach1
initboot=echo; echo type run netboot to boot via dhcp+tftp+nfs; echo type
run soloboot to run from flash independent of network; echo
mem=524264k
mmcboot=setenv bootargs ${bootargs} rootdelay=2 root=b301;bootm 0xf8000000
netboot=dhcp 0x4000000; setenv bootargs ${bootargs} root='/dev/nfs'
rootpath=${rootpath} ip=dhcp; bootm 0x4000000
netdev=eth0
newkernel=run yget; run writekernel
newroot=run yget; run writeroot
newuboot=run yget; run writeuboot
preboot=run initboot
rootpath=/dev/mtdblock1
soloboot=setenv bootargs ${bootargs} root=/dev/mtdblock1; bootm 0xf8000000
tftpkernel=dhcp; tftp 0x4000000 uImage; run writekernel
tftproot=dhcp; tftp 0x4000000 romfs; run writeroot
tftpuboot=dhcp; tftp 0x4000000 u-boot.bin; run writeuboot
usbboot=setenv bootargs ${bootargs} rootdelay=8 root='/dev/sda1 rw'; bootm
0xf8000000
ver=U-Boot 2011.06-rc2-00000-gd422dc0-dirty (Nov 26 2012 - 12:08:53)
writekernel=era 0xf8000000 0xf83fffff; cp.b 0x4000000 0xf8000000 ${filesize}
writeroot=era 0xf8400000 0xfc3fffff; cp.b 0x4000000 0xf8400000 ${filesize}
writeuboot=protect off 0xfff80000 0xffffffff; era 0xfff80000 0xffffffff;
cp.b 0x4000000 0xfff80000 ${filesize}; protect on 0xfff80000 0xffffffff
yget=loady 0x4000000
Environment size: 1516/8187 bytes
The line "netboot=dhcp 0x4000000; setenv bootargs ${bootargs}
root='/dev/nfs' rootpath=${rootpath} ip=dhcp; bootm" looks promising, so
are you saying I should edit this line and save it using saveenv? Are
there instructions anywhere on how to do this?
Thanks,
Dale
On Tue, Aug 23, 2022 at 3:40 PM Marc <m...@sarao.ac.za> wrote:
> Hi
>
> So it might be worth checking if your new server actually exports the
> NFS filesystem - "showmount -e localhost" might be a first start, but
> perhaps a better approach would be to try and mount the filesystem on
> a normal PC ?
>
> Other things to try might be the "nolock" option - I am hazy on the
> detail, but I don't think the roaches are running a lock manager
>
> The roaches get their command line via uboot, which can be
> interrupted, and the commandline inspected by typing "printenv". I
> remember the variables being nested - so the "bootargs" variable would
> contain references other ${variables}. Be careful to escape them
> propery, and only use saveenv once you are sure they do what you want.
>
> All the best and regards
>
> marc
>
>
>
> On Tue, Aug 23, 2022 at 7:08 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
> >
> >
> > --
> > You received this message because you are subscribed to the Google
> Groups "casper@lists.berkeley.edu" group.
> > To unsubscribe from this group and stop receiving emails from it, send
> an email to casper+unsubscr...@lists.berkeley.edu.
> > To view this discussion on the web visit
> https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAKeNqUiMwt1RWdSmW6qACbPptY_Dfc1TYiddZa6CdTdUDkDGSA%40mail.gmail.com
> .
>
>
>
> --
> https://katfs.kat.ac.za/~marc/
>
> --
> You received this message because you are subscribed to the Google Groups "
> casper@lists.berkeley.edu" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to casper+unsubscr...@lists.berkeley.edu.
> To view this discussion on the web visit
> https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAGrhWaT4ZYUX5SKKkxC054rF_pZiTcGB12s3RiSS9wZ3Jd-DUQ%40mail.gmail.com
> .
>
--
You received this message because you are subscribed to the Google Groups
"casper@lists.berkeley.edu" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to casper+unsubscr...@lists.berkeley.edu.
To view this discussion on the web visit
https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAKeNqUgSPOXfLecqnvxBgs4J_zaF2itqBnnuW_UvRBVr4dip_A%40mail.gmail.com.
