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Can't dump flash via telnet interface, Arris TM902S #60
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Please retry with the latest commit! |
Hi, I'm back now and starting the testing. So tried the latest commit, but not works.
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Please recompile with the latest commit, re-run with |
Tried new commit: the same result, telnet login failed.
Tried telnet with PuTTY, it works:
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io.log |
Try the latest commit please, and post the io.log. |
Otput and the io.log
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How about now? |
This time connected, but can't dump anything and exit.
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When you connect to it using PuTTY, type |
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Try the latest commit. That should auto-detect the available read commands on your device! |
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What's the command to disable the DS channel scan on this device? Also, please login to the device using PuTTY, run the following commands (in that order), and post the full output:
If prompted for a password by |
the problem is that with Arris PoTD I can access only limited shell, and there is no
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Try the latest commit. That should work, although with the scan still running, it's going to be noticeably slower! |
The DS frequency scan is constantly printing because I'm testing offline, with no coax cable connected. Still the same.
Is it possible before dump, first run |
How about now? |
Still complains:
There is also another, a full shell, and password for it, which is definitely somewhere in the f/w code. |
The ability to dump flash is only available from the full (i.e. privileged) shell. Since there's no What you'll have to do first is dump the currently running firmware from RAM. With that dump in hand, it should be fairly easy to figure out how to switch to a full shell.
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Is the RAM image the same as image1, image2 dump? If so, then I have a dump of firmware image1, image2 that I got last year using serial connection. |
The problem is that the channel scan and both output to the console at the same time, leading to clobbered lines such as
which is exactly where the code fails (offset
You're right. The image currently running is Try adding the following options to your
This should switch the Telnet console into privileged mode (which should persist after EDIT: Also try logging into telnet using |
I tried:
Logging into telnet or SSH with |
Arris TM902S, I'm using the latest build for Linux. I can access a limited shell via telnet and ssh both use POTD, but when I tried dump flash, I got error
The same result when use
./bcm2dump -P generic -vv dump '192.168.100.1,ARRIS,VAFRWXSVSG' flash dynnv dynnv.bin
The coax cable is conneted during all tests.When I connect telnet using terminal or putty, first I see this output
To proceed and get password prompt I need press 'Enter'.
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