Products > Test Equipment
Agilent E7495 linux root account
(1/91) > >>
Urs42:
I found out i'ts running linux on an ARM CPU, i can't have any Linux Box without root access, so i did some password cracking:

User: guest
Pass: noname

User: root
Pass: wh1skers

You can log in to it with telnet, it has many serial ports, i suspect that most of them are used to communicate with the Spectrum Analyzer Part. The Powerup Config of the Device is stored in /flash/egServer/registry/Powerup/ if you want to change some default settings. There is an ftp client on the device, if you run a ftp server on your computer, you can use it to copy files from and to the device. Binaries from debian woody will work on the Device.

jwm_:
That is great, time to email them and ask for the source code. Depending on their mood, we may get the source to drivers for their hardware in it.
Wuerstchenhund:
Nice find! Yes, the E7495 is a nice device, and great for hacking or expanding its capabilities, probably more so than most other VSAs in that price class.

You should be able to get the source code for the OSS stuff from Keysight but I believe the hardware drivers are closed source binaries.

But hey, there's a lot that could potentially be done with that thing. Maybe someone can fix the sometimes temperamental screen capture function, or even modify it so that it works with USB drives as well.
Urs42:
There is no USB Storage Support in the kernel running on the device, and the module is also missing :-(

The kernel Version that is running on the device is available on the internet, the .config from the kernel would help with building a matching module, i'm not sure if it's possible to build it without the .config.

They are Obligated to give us the source, because of the GPL...

I think that the mounting and unounting of the cf card is done with shell scripts, it should be possible to switch the scripts to USB.

The licensing of options is done with the flexlm license manager, i have no idea how secure this thing is. There are many Options that don't need additional hardware. I think it might be possible to copy licenses from one device to another.

jwm_:
If it does just communicate with its devices over serial links, it would be easy to interpose a driver to capture and sniff the data. also possible for usb, but a bit trickier if we can't load a kernel module.

can you post its full boot logs, lspci and lsusb?

I was thinking of picking up one of those for use as a general spectrum analyzer, how hampered will i be that it was designed for a specific purpose? Will i always be fighting the UI that keeps on wanting me to repair base stations?
Navigation
Message Index
Next page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod