|
Firmware upgrade - Tahoe 1701/1708/1741/1748/1801/1808
To upgrade the firmware you'll need a TFTP client. Please use utftp client for
Linux, which was tested and works for sure. Other clients should
also work, but for example a client supplied with Slackware 8.0 was buggy.
Untar and compile the utftp:
tar xvf utftpd-0.2.4.tar.gz
cd utftpd-0.2.4
make
make install
We advise to connect the router directly to the PC, with no other traffic
present. Although it's possible to upgrade firmware remotely (over the
Internet), the upgrade procedure is a little bit risky and should be
performed carefuly.
Connect to the router and enable TFTP access:
The modem executes its firmware directly from the Flash memory. To erase
the Flash contents and upload new one you have to make router stop using the
Flash for a moment. To achieve this you need to upload a 'boot' file which
is a small, simplified operating system that resides entirely in the RAM.
When the router starts executing that 'boot' system from RAM, it doesn't use
Flash, so you can exchange it's contents.
There are two different 'boot' files for different router models:
Send appropriate file under the name 'boot':
utftp -p 10.0.0.1 boot boot.1700
(replace '10.0.0.1' with router's IP address)
The router will reboot and will have default settings (IP address
10.0.0.1, etc). You can connect to it using telnet and check whether it
does use the 'boot' file - most of the commands (like 'route', 'ifconfig',
etc.) should't work ('Unknown command').
Now you can send the 'erase' file (zero-length) to erase the Flash
memory:
After a few seconds the Flash memory is erased.
WARNING: do not power off or reboot the router until you complete
writing the new firmware. It has no firmware at all at the moment and won't
boot again.
Send the new firmware under the name 'flash':
utftp -p 10.0.0.1 flash t1700-1.2.9.bin
(yout may need to change 't680-1.2.7.bin' to another filename)
After some time the firmware upload will be complete. If something goes
wrong, repeat the procedure by first erasing the Flash and then programming
again.
Now you can reboot the router. If will start with the factory settings.
If anything goes wrong (router reboots with no firmware present, power
goes off) please contact us immediately.
|
