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Agilent E7495 linux root account

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technogeeky:

--- Quote from: ke6iyc on May 10, 2017, 10:36:30 pm ---Hello all!

Ordered one of the cheap units on fleabay (but it does power up and function) for a good price today.

Glad I found this thread AFTER I ordered (otherwise I would have been tempted to pay too much).

Thank you to all for the hard work and time you have put into this.

Will have to  disassemble to fix the screen gasket when it arrives mid next week.

Brian
KE6IYC

--- End quote ---

This reminds me...

Q: What kind of plastic is the screen protector, and how can I clean the adhesive gunk off of it?

Unless you are a better chemist than I am (entirely possible...) , you're going to find that the only solution (no pun intended) which actually releases the gasket adhesive is acetone. This same acetone will destroy the top layer of the plastic (and/or the UV coating, or something). It doesn't look great. It looks pretty awful, actually. Since I used acetone, and hence destroyed the plastic (or its coating), I decided to try and identify the exact plastic so I could find a replacement. I did some destructive testing to determine exactly what kind of plastic the screen protector is, and after some burning, melting, and inhaling burned plastic odors... I am pretty sure I came up with an answer. And probably nose cancer. PVF. Polyvinyl Fluoride. And while this link (it's a good URL to bookmark. As is the other one. Do it.) wasn't helpful, further browsing and this site convinced me that PVF is an understandable choice for this screen. It could also be any of the self-extinguishing, non-dripping ones (PPO, PVC). In any case, I couldn't find a good supplier of PVF clear sheets, and I could easily find many places to get PVC clear sheets.

In any case, I wasn't able to find any easy to way to buy PVF glass sheets, so I eventually went with plain PVC. I got them custom cut from an Amazon vendor, and I still have three sheets exactly cut to size. I will be happy to send them out if you want, or otherwise I can just share the measurements I took so you can see if you agree; and we can learn where and how to buy PVF plastic clear thick sheets.


Q: What facts do we know about the plastic type of the screen?


* available in clear, rather rigid sheets that do not crease
* some sort of UV or anti-reflective coating
* softens, not burns (thermoplastic)
* sinks in water
* does not appear to have flames (50%?)
* does not continue to burn (95%?)
* does not appear to drip (50%)
No, the stuff I have does not have any anti-glare or anti-reflective coating. Yes, it's slightly worse than the original. Yes, you would about $1 plus shipping. Oh, thanks for the interest. My address is, roughly speaking:

Atlanta, GA, USA, Earth, Sol, Milky Way, Universe A

So if shipping to you would be uncomplicated, let me know. I have 3 more of them. They still have the factory tape on them, so there should not be any defects.

ke6iyc:
That would be most helpful, but I would only need one (share the love).

I am, roughly speaking, Boise, Idaho, USA, Earth, Sol, Milky Way, Universe A

Currently sitting in Florida, however, so that might be a tad cheaper.

If you have PayPal, I would happily reimburse for any costs incurred......

Email would look something like ke6iyc (at) mac (dot) com , but with the generally accepted punctuation and symbology, instead of the parenthetical words.

Thank you in advance!

Brian
KE6IYC

ke6iyc:
Simple question,

Is the RS-232 cable for Telnet straight through, or null modem?

Thanks!

kirill_ka:

--- Quote from: ke6iyc on May 12, 2017, 03:36:45 pm ---Is the RS-232 cable for Telnet straight through, or null modem?

--- End quote ---
E7495 ports are normal "DTE" ports. So the cable should have TX to RX connections (null modem).

kirill_ka:

--- Quote from: DogP on May 10, 2017, 09:49:31 am ---An alternative, if you simply telnet into the box, you can run the following commands to patch the binary in place.  Once you're done, you should probably reboot the box to make sure it's running the modified binary.

The first line backs up the binary file, in case you screw something up, or need to revert back to the original.  The 2nd line does the actual patch.  Note that Linux is case sensitive, so copy it exactly as shown (i.e. capital S on egServer).

--- Code: ---cp /flash/egServer/elgato /flash/egServer/elgato.bak
printf '\xde\x25\x85\xe2\x3f\x28\x82\xe2' | dd of=/flash/egServer/elgato bs=1 seek=1190016 count=8 conv=notrunc

--- End code ---

--- End quote ---
I would hesitate to use that command unless I'm absolutely sure the binary is the right one.
There are few caveats:
1. Original binary should be the same version. Probably we'd post md5sums of original and patched files.
2. Writing to the executable which is running may fail.
3. There are number of "printf" versions you can find on the same system. Some of them may not support hex escape sequences. E.g. bash built-in printf, /bin/sh built-in printf, /usr/bin/printf.

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