[Gumstix-users] gumstix thumbo ssh or telnet over usbnet

[headupinclouds <hea...@gm...>]

I'm trying to communicate with my Thumbo board over a ssh or telnet session
via usbnet.  I'm using an Overo Earth + Thumbo with an open embedded image
that I checked out and bitbaked yesterday.  I'm using a by-the-book
installation, i.e.

>bitbake omap3-console-image
>bitbake x-load
>mount /dev/sdc1 /media/card
>cp ~/overo-oe/tmp/deploy/glibc/images/overo/MLO-overo /media/card/MLO
>cp ~/overo-oe/tmp/deploy/glibc/images/overo/MLO-overo/u-boot-overo.bin
/media/card/u-boot.bin
>cp ~/overo-oe/tmp/deploy/glibc/images/overo/MLO-overo/uImage-overo.bin
/media/card/uImage
>sudo umount /dev/sdc1

>sudo mount /dev/sdc2 /media/card
>cd /media/card/
>tar xvjf
~/overo-oe/tmp/deploy/glibc/images/overo/omap3-console-image-overo.tar.bz2 

Since the Thumbo has no USB console port, my hope was to configure the board
for a telnet or ssh session from my Ubuntu 10.04 PC via usbnet.  Using the
instructions provided in this link 
http://docwiki.gumstix.org/Setting_up_USBnet Setting_up_USBnet  as a guide,
I mounted my gumstix micro SD card and then modified /etc/network/interfaces
on the SD card filesystem by adding the following entry.  This is the only
usb0 entry in the file (default Kubuntu 10.04 file).

iface usb0 inet static
       address 192.168.0.2
       netmask 255.255.255.0
       pre-up /sbin/modprobe g_ether;/sbin/modprobe af_packet
       post-down /sbin/modprobe -r g_ether

On my host Ubuntu machine I run 

> modprobe usbnet

and then confirm that this is running with:

> lsmod | grep usbnet
usbnet                 14943  0 
mii                     4381  1 usbnet

Then I connect the Thumb + Overo Earth board with the configured micro SD
card.  After waiting a very reasonable period for boot up (> 1 minute) I
run:

> ifconfig -a | grep usb0

but there is no usb0 interface.  I guess this should show up in /dev/usb0. 

I'm not sure if I am missing some key steps or details or if this whole
approach isn't expected to work for some reason from the start.  Any help
would be appreciated.  Otherwise, I guess I will need to hack a USB->serial
port cable to  solder to the serial cable pinouts that should be located
around the periphery of the Thumbo board.


 
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