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Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

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Old 02-11-2014, 01:38 PM   #1
steve_pa
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BeagleBone Black - Firefox unable to connect (using usb cable)


Problem: I am unable to connect to the IP 192.168.2.7, which Firefox errors out with "unable to reach..."

My environment:
PC Laptop running Arch Linux, fully updated.
Beagle Bone Black - brand new, stock software.
usb cable as provided.

What I did:
  • connected the usb cable from laptop to BBB.
  • booted laptop.
  • observed flashing leds and heartbeat on BBB.
  • Launched firefox and attempted to navigate to 192.168.2.7, but unable to reach it.
  • Tried different combinations of rebooting laptop and BBB with no effect.
  • Able to use file manager to navigate to contents of BBB.
  • running lsusb shows the device
  • tried running that script as root to make udev rules against my better judgement but no change and no error.

Not sure where to go next on trouble shooting this device.
Any hints?
TIA
Steve.

Last edited by steve_pa; 02-11-2014 at 01:45 PM. Reason: typo
 
Old 02-12-2014, 10:15 AM   #2
rtmistler
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Firstly, the correct address is 192.168.7.2.

Make sure you're plugging into the client USB which is the USB mini connector near the LEDs and the RJ45 plug. The USB host connector is down near the uSD card and what appears to be a microUSB is not that, it is an HDMI.

If you're plugging your computer into the correct client USB and have absolutely no other cables plugged into your board, then the board should attain power from this connection. If you have to power it otherwise, then you're likely not plugging into the USB client connector, refer to the diagram for step 1 Connecting to the Beagle.

If all connections are correct, you've tried the correct address and it still doesn't work. You can create a new flash uSD card to place a version on the board. That process is here.

My personal notes/experience on this are that they claim it should take as much as 40 minutes to burn the flash, I've seen it take a lot longer; longer than and hour and a half I left it powered overnight after waiting 1.5 hours and when I returned to it in the morning, the four LEDs were finally solid. So, the four LEDs do eventually get to that state; however in my case, 2 separate boards, it took much, much longer than 40 minutes. Note I also have a display and attached a keyboard/mouse so that I could login as root and perform stuff like "ps -ef | grep -i mmc" to see if there were processes which has the mmc block (the flash) as an argument. There were, that's why I decided that the 1.5 hours wasn't yet a lost cause.
 
Old 02-13-2014, 09:06 AM   #3
steve_pa
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Location: Houston Tx USA
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Update

rtmistler,

That was my typo on the ip.

As stated in my post, I was able to browse the files on the BBB so my cables were right.

I remain unable to connect from my linux laptop to the BBB webpage because the ip fails to connect for whatever reason.

Using the same cable and BBB, I got my Win7 laptop to connect to the BBB quickly. Windows is not really the way I prefer to work with the BBB.

Any ideas on where to go from here to get my linux laptop to connect? Do you still think updating the BBB software is the next course? FYI, bbs.archlinx.org and google searches were not helpful.

Your advice appreciated.
Steve.
 
Old 02-15-2014, 07:54 PM   #4
steve_pa
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Registered: Jan 2012
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connection success using serial

I never got to connect to the BBB using the web browser. Bummer.

But I was able to connect using:

Code:
#screen ttyACM0 115200
So life is better. I believe I can get wifi working and of course ethernet.

But before I proceed, anyone have any pros and cons about sticking with Angstrom? Seems to be some negatives with this distro.

Thanks very much.
Steve.
 
  


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