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Serious problem with C20 & TFTP software recovery

Luke Sykes
Level 1
Level 1

Good Morning

Just a quick question

We have a C20 here which was working fine until we plugged a suspected faulty camera into it to test it. Unsure if the camera may have caused the fault but the codec was fine before hand. After the camera upgrade the unit would boot and all we had was a flashing green LED on the front.

Initially, on a putty session I could see that there was 2 firmware images on the codec, and image 2 was active. I entered the selectsw image 1 command and the codec booted properly after about 20 minutes, but when I was stood near it I noticed that it rebooted on its own. I managed to serial into it again and logged in as root and using the 'selectsw' command, and then discovered that there is only one software image. (Image 2) Now the codec just keeps rebooting its self, and moments after the boot is complete the image becomes corrupt and the unit reboots again.

It will not stay up long enough for me to attempt a firmware upgrade.

Any ideas?

Also, please could you tell me how to do a software recovery using TFTP?

Many thanks

Luke

1 Reply 1

Danny De Ridder
Cisco Employee
Cisco Employee

Hello,

you access the C20 via putty? Do you have admin access? If so, please enable root access too using following command :

sweet-brew-7:/home/dderidde # ssh admin@10.60.142.199

Password:

Welcome to dderidde.ex90.home

TANDBERG Codec Release TC5.1.5.297625

SW Release Date: 2012-11-16

OK

systemtools rootsettings on cisco

OK

Connection to 10.60.142.199 closed by remote host.

Connection to 10.60.142.199 closed.

sweet-brew-7:/home/dderidde #

The login as root before the codec reboots using password cisco :

sweet-brew-7:/home/dderidde # ssh root@10.60.142.199

Password:

[dderidde-ex90-home:~] $

[dderidde-ex90-home:~] $

[dderidde-ex90-home:~] $ touch /tmp/noboot

[dderidde-ex90-home:~] $

Do the command touch /tmp/noboot

If the codec crashes now, it will not reboot.

Now you can look at the logfiles, e.g. cat all the files to your screen to a file.

[dderidde-ex90-home:~] $ cat /var/log/eventlog/* /var/log

Now we should be able to see in these files why we are crashing.

From here, you can also upgrade using tftp. My tftp server is named drop.

[dderidde-ex90-home:~] $ tftp drop

tftp> status

Connected to drop.cisco.com.

Mode: netascii Verbose: off Tracing: off Literal: off

Rexmt-interval: 5 seconds, Max-timeout: 25 seconds>

tftp> bin

tftp> get s52000tc5_1_5_rc2.pkg /upgrade/pkg  

Regards,

Danny.

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