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jshi...@gmail.com
Nov 13, 2015, 12:30:03 PM11/13/15
to BeagleBoard
Using a new BeagleBone Black and I have a simple Python test script that is configured
to execute on BBB
bootup. I need it to work without connecting to the host pc (USB connection).
Question: Can the BBB be powered by the external 5 VDC and the USB at the same time,
or is that a power conflict issue?
Question: If powering the BBB with the external 5 VDC power supply, is there a danger in
corrupting the Debian OS by powering down the BBB (no shutdown) ?
Gerald Coley
Nov 13, 2015, 2:08:23 PM11/13/15
to beagl...@googlegroups.com
No power conflict. it is is discussed in the manual.
Yes, you can get corruption.
Gerald
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Jer Lopez
Nov 14, 2015, 1:53:50 PM11/14/15
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Thank you for your reply, one obstacle out of the way :-)
I just ordered the Beaglebone book: "Exploring BeagleBone: Tools and Techniques for Building with Embedded Linux"
by Dekek Molloy .I also read that I can shut down the board (power) by pressing the power button on the BBB. So that seems
to be the way to shutdown the board and not corrupt the memory.
There is still an issue: By using the systemctl file.service method , it does not pass the python print outputs to the ssh when connected
using the host PC -> BBB.
However, if executing the script directly (no systemctl used), the print function works as expected.
Question: Is there a way allow this to work when using systemctl method?
Question: I still can not figure out how to use the 'forum'. I am not sure the proper method to login and sign off.
I do appreciate you assistance and I thank you!
I just ordered the Beaglebone book: "Exploring BeagleBone: Tools and Techniques for Building with Embedded Linux"
by Dekek Molloy .I also read that I can shut down the board (power) by pressing the power button on the BBB. So that seems
to be the way to shutdown the board and not corrupt the memory.
There is still an issue: By using the systemctl file.service method , it does not pass the python print outputs to the ssh when connected
using the host PC -> BBB.
However, if executing the script directly (no systemctl used), the print function works as expected.
Question: Is there a way allow this to work when using systemctl method?
Question: I still can not figure out how to use the 'forum'. I am not sure the proper method to login and sign off.
I do appreciate you assistance and I thank you!
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John
Nov 14, 2015, 8:10:19 PM11/14/15
to beagl...@googlegroups.com
I think the best way to shut down BBblack is to use SSH to 192.168.7.2.
Then use the linux command SUDO shutdown -h now
At least that is what I found in the book you ordered.
John
At 12:53 PM 11/14/2015, you wrote:
>Thank you for your reply, one obstacle out of the way :-)
>I just ordered the Beaglebone book: "Exploring
>BeagleBone: Tools and Techniques for Building with Embedded Linux"
>by Dekek Molloy .I also read that I can shut
>down the board (power) by pressing the power button on the BBB. So that seems
>
>There is still an issue: By using the systemctl
>file.service method , it does not pass the
>python print outputs to the ssh when connected
>using the host PC -> BBB.
>However, if executing the script directly (no
>systemctl used), the print function works as expected.
>Question: Is there a way allow this to work when using systemctl method?
>
>Question: I still can not figure out how to use
>the 'forum'. I am not sure the proper method to login and sign off.
>
>I do appreciate you assistance and I thank you!
><http://www.amazon.com/Exploring-BeagleBone-Techniques-Building-Embedded/dp/1118935128/ref=sr_1_1?s=books&ie=UTF8&qid=1447526564&sr=1-1&keywords=beaglebone+black>
>There is still an issue: By using the systemctl
>file.service method , it does not pass the
>python print outputs to the ssh when connected
>using the host PC -> BBB.
>However, if executing the script directly (no
>systemctl used), the print function works as expected.
>Question: Is there a way allow this to work when using systemctl method?
>
>Question: I still can not figure out how to use
>the 'forum'. I am not sure the proper method to login and sign off.
>
>I do appreciate you assistance and I thank you!
>
>
>On 11/13/2015 01:08 PM, Gerald Coley wrote:
>>No power conflict. it is is discussed in the manual.
>>
>>Yes, you can get corruption.
>>
>>Gerald
>>
>>
>>On Fri, Nov 13, 2015 at 11:30 AM,
>><<mailto:jshi...@gmail.com>jshi...@gmail.com> wrote:
>>
>>Using a new BeagleBone Black and I have a
>>simple Python test script that is configured
>>
>>to execute on BBB bootup. I need it to work
>>without connecting to the host pc (USB connection).
>>
>>
>>Question: Can the BBB be powered by the
>>external 5 VDC and the USB at the same time,
>>
>>or is that a power conflict issue?
>>
>>
>>Question: If powering the BBB with the external
>>5 VDC power supply, is there a danger in
>>
>>corrupting the Debian OS by powering down the BBB (no shutdown) ?
>>--
>>For more options, visit
>><http://beagleboard.org/discuss>http://beagleboard.org/discuss
>
>On 11/13/2015 01:08 PM, Gerald Coley wrote:
>>No power conflict. it is is discussed in the manual.
>>
>>Yes, you can get corruption.
>>
>>Gerald
>>
>>
>>On Fri, Nov 13, 2015 at 11:30 AM,
>><<mailto:jshi...@gmail.com>jshi...@gmail.com> wrote:
>>
>>Using a new BeagleBone Black and I have a
>>simple Python test script that is configured
>>
>>to execute on BBB bootup. I need it to work
>>without connecting to the host pc (USB connection).
>>
>>
>>Question: Can the BBB be powered by the
>>external 5 VDC and the USB at the same time,
>>
>>or is that a power conflict issue?
>>
>>
>>Question: If powering the BBB with the external
>>5 VDC power supply, is there a danger in
>>
>>corrupting the Debian OS by powering down the BBB (no shutdown) ?
>>--
>>For more options, visit
>>---
>>You received this message because you are
>>subscribed to the Google Groups "BeagleBoard" group.
>>To unsubscribe from this group and stop
>>receiving emails from it, send an email to
>><mailto:beagleboard...@googlegroups.com>beagleboard...@googlegroups.com.
>>You received this message because you are
>>subscribed to the Google Groups "BeagleBoard" group.
>>To unsubscribe from this group and stop
>>receiving emails from it, send an email to
>>For more options, visit
>><https://groups.google.com/d/optout>https://groups.google.com/d/optout.
>>
>>
>>
>>
>>--
>>Gerald
>>Â
>><mailto:ger...@beagleboard.org>ger...@beagleboard.org
>><http://beagleboard.org/discuss>http://beagleboard.org/discuss
>>---
>>You received this message because you are
>>subscribed to a topic in the Google Groups "BeagleBoard" group.
>>To unsubscribe from this topic, visit
>><https://groups.google.com/d/topic/beagleboard/O9eZbP-Ibmc/unsubscribe>https://groups.google.com/d/topic/beagleboard/O9eZbP-Ibmc/unsubscribe.
>>You received this message because you are
>>subscribed to a topic in the Google Groups "BeagleBoard" group.
>>To unsubscribe from this topic, visit
>>To unsubscribe from this group and all its
>>topics, send an email to
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>>topics, send an email to
>>For more options, visit
>><https://groups.google.com/d/optout>https://groups.google.com/d/optout.
>
>--
>For more options, visit
><http://beagleboard.org/discuss>http://beagleboard.org/discuss
>--
>For more options, visit
>---
>You received this message because you are
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>You received this message because you are
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John
Nov 14, 2015, 8:14:36 PM11/14/15
to beagl...@googlegroups.com
Sorry, I meant to write:
sudo shutdown -h now
John
At 07:10 PM 11/14/2015, John wrote:
>I think the best way to shut down BBblack is to use SSH to 192.168.7.2.
>Then use the linux command SUDO shutdown -h now
>
>At least that is what I found in the book you ordered.
>
>John
>
>At 12:53 PM 11/14/2015, you wrote:
>>Thank you for your reply, one obstacle out of the way :-)
>>I just ordered the Beaglebone book: "Exploring
>>BeagleBone: Tools and Techniques for Building with Embedded Linux"
>>by Dekek Molloy .I also read that I can shut
>>down the board (power) by pressing the power button on the BBB. So that seems
>--- You received this message because you are
>subscribed to the Google Groups "BeagleBoard" group.
>To unsubscribe from this group and stop
>receiving emails from it, send an email to
>beagleboard...@googlegroups.com.
>subscribed to the Google Groups "BeagleBoard" group.
>To unsubscribe from this group and stop
>receiving emails from it, send an email to
>For more options, visit https://groups.google.com/d/optout.
Jer Lopez
Nov 14, 2015, 11:13:41 PM11/14/15
to beagl...@googlegroups.com
John: Thanks for the reply. I have used the power button on the BBB and
it looks like it exits the OS (Debian) in a manner similar to
pressing and holding the power button on a PC. I have tried that
numerous times at so far no negative effects. I agree that communicating
by using the host shell (ssh) to the BBB and then the shutdown method. I
am thinking that sometime in the future I will want to have a
project that will be stand alone, no host involved.
BTW, is there a section on the forum that I can get the 'rules' on how
to login, post and logout?
Once again, thanks for the help. I am hoping that when I get the book
recently ordered will address a lot of metods and features in the
use of the BBB.
it looks like it exits the OS (Debian) in a manner similar to
pressing and holding the power button on a PC. I have tried that
numerous times at so far no negative effects. I agree that communicating
by using the host shell (ssh) to the BBB and then the shutdown method. I
am thinking that sometime in the future I will want to have a
project that will be stand alone, no host involved.
BTW, is there a section on the forum that I can get the 'rules' on how
to login, post and logout?
Once again, thanks for the help. I am hoping that when I get the book
recently ordered will address a lot of metods and features in the
use of the BBB.
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