[beagleboard] Re: shutdown procedure required for beaglebone black ??

2018-02-26 Thread tomlearman 
Can you use a remote bottom. Does this start-stop bottom come out on the 
terminal strip?

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[beagleboard] Re: shutdown procedure required for beaglebone black ??

2017-04-10 Thread 'woody stanford' via BeagleBoard 
[quote]
Push the power button momentarily.

Gerald
[quote]

ROTFLMAO. Oh gawd that's the funniest thing I've read today. lmao *double 
thumbs up*

On Sunday, October 13, 2013 at 4:09:05 AM UTC-7, arbjful wrote:
>
> Hi,
>
> I am trying to use the beaglebone black (in factory default settings) in a 
> control application, where the BBB interfaces to a 20x4 character LCD, 18 
> button keypad, and a RS 232 connection using ttyO4 port (connects to RS 485 
> network using appropriate drivers).
>
> I have almost developed the hardware and the software using Eclispe C++ 
> IDE. 
>
> As I am not using any batteries or other power backup devices for the BBB, 
> Do I have to implement a shutdown procedure for my users ?? 
>
> I have made a procedure in which the user presses a combination of keys to 
> get the shutdown option on the LCD, selecting the shutdown option runs the 
> system("shutdown -h now") command in my C++ program.
>
> Is a shutdown procedure required for the BBB or will just pulling out the 
> +5V power jack be sufficient. 
>
> I have read in some sites that the eMMC could get corrupted causing 
> startup issues
>
> Please advise
>
> thanks
> a
>
>

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Re: [beagleboard] Re: shutdown procedure required for beaglebone black ??

2015-10-26 Thread lee 
I have an Element14 BBB running 4.1.10-ti-r22 Kernel and Debian 8.1 Jessie.

A momentary press of the PWR button does not have any effect and the manual 
suggests it should start a shut down command.

Holding it down for >8 seconds causes it to reset like the reset button so 
I know the hardware button is physically ok.

Lee

On Tuesday, August 25, 2015 at 12:24:13 AM UTC+1, RobertCNelson wrote:
>
> On Sat, Aug 22, 2015 at 12:50 AM,   
> wrote: 
> > Hi Gerald, 
> > 
> > Do you mean the Linux umount command to un-mount the drive(s)?  In an 
> > earlier post, you said, "Assuming that the SW supports the power button 
> > function."  Were you saying that the umount command is assumed to 
> support 
> > the function of the power button? 
> > 
> > Lawrence 
>
> Lawrence, are you a troll or lawyer? Based on how you question every 
> email... 
>
> With the "current" images.. 
>
> Push button -> signal to systemd -> systemd starts standard shutdown... 
>
> If your "image" doesn't do that, it's not "current"... 
>
> Regards, 
>
> -- 
> Robert Nelson 
> https://rcn-ee.com/ 
>

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Re: [beagleboard] Re: shutdown procedure required for beaglebone black ??

2015-08-26 Thread lmjeung0 
Hi Robert,

My apologies to you and the Forum for how I question every e-mail, but no, 
I'm neither a troll nor a lawyer.  I'm actually a software engineer with a 
physics background.

Thank you for showing me the chain of events that occur when the power 
button is pushed.  I now understand what Gerald meant: systemd was the SW 
he was referring to, and depending on the image, the SW might not support 
this chain.  According to the cat /etc/dogtag command, our image is

BeagleBoard.org BeagleBone Debian Image 2014-04-23

And according to the SparkFun Electronics 
https://www.sparkfun.com/products/12857 website where my team HW lead 
bought our BBB, the rev is

Rev C - DEV-12857

Since the Beagleboard:BeagleBoneBlack - eLinux.org 
http://elinux.org/Beagleboard:BeagleBoneBlack#Revision_A5A wikipage says 
the power button was added in Rev A6A, then our BBB should be able to 
execute the chain.  I tried it, and it works.  I also ran the shutdown 
command (actually, shutdown -h now, based on what I read in the other Forum 
topics), and it worked.  The wikipage also recommends issuing the halt 
command to power off the board; I tried that, too, and it also worked.  I 
have instructed my teammates to use the halt command, as it entails less 
typing and avoids the problem of fat fingers pushing the wrong component on 
the board.  However, not fifteen minutes after I told the HW lead, he 
unceremoniously pulled the USB cable out without issuing the halt command.  
Sigh...

In any case, we now know the required shutdown procedure for the BBB.  
Thank you, Robert, Gerald, and cmbaker3, for your assistance.  We really 
appreciate it.

Best regards,
Lawrence

On Monday, August 24, 2015 at 4:24:13 PM UTC-7, RobertCNelson wrote:

 On Sat, Aug 22, 2015 at 12:50 AM,  lmje...@gmail.com javascript: 
 wrote: 
  Hi Gerald, 
  
  Do you mean the Linux umount command to un-mount the drive(s)?  In an 
  earlier post, you said, Assuming that the SW supports the power button 
  function.  Were you saying that the umount command is assumed to 
 support 
  the function of the power button? 
  
  Lawrence 

 Lawrence, are you a troll or lawyer? Based on how you question every 
 email... 

 With the current images.. 

 Push button - signal to systemd - systemd starts standard shutdown... 

 If your image doesn't do that, it's not current... 

 Regards, 

 -- 
 Robert Nelson 
 https://rcn-ee.com/ 


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Re: [beagleboard] Re: shutdown procedure required for beaglebone black ??

2015-08-24 Thread Robert Nelson 
On Sat, Aug 22, 2015 at 12:50 AM,  lmjeu...@gmail.com wrote:
 Hi Gerald,

 Do you mean the Linux umount command to un-mount the drive(s)?  In an
 earlier post, you said, Assuming that the SW supports the power button
 function.  Were you saying that the umount command is assumed to support
 the function of the power button?

 Lawrence

Lawrence, are you a troll or lawyer? Based on how you question every email...

With the current images..

Push button - signal to systemd - systemd starts standard shutdown...

If your image doesn't do that, it's not current...

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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Re: [beagleboard] Re: shutdown procedure required for beaglebone black ??

2015-08-24 Thread lmjeung0 
Hi Gerald,

Do you mean the Linux *umount* command to *un*-mount the drive(s)?  In an 
earlier post, you said, Assuming that the SW supports the power button 
function.  Were you saying that the *umount* command is assumed to support 
the function of the power button?

Lawrence

On Friday, August 21, 2015 at 4:52:30 PM UTC-7, Gerald wrote:

 It is a standard linux command to mount the drive.

 Gerald


 On Fri, Aug 21, 2015 at 5:02 PM, lmje...@gmail.com javascript: wrote:

 Hi Gerald,

 Oops, by may not necessary work, I mean, may not necessarily work. 
  Will I need to develop SW that supports the power button function - that 
 is, will I need to develop SW to enable the button?  We are refraining from 
 powering up the BBB until we know for sure.

 Best regards,
 Lawrence


 On Monday, August 10, 2015 at 6:46:51 AM UTC-7, lmje...@gmail.com wrote:

 Hi Gerald,

 Do you mean that the power button function may not necessary work?  Is 
 the SW that supports it SW that I will need to develop, like the C++ SW 
 that arunbarn...@gmail.com was developing?

 Lawrence

 On Wednesday, August 5, 2015 at 9:07:57 AM UTC-7, Gerald wrote:

 Assuming that the SW supports the power button function.

 Gerald


 On Wed, Aug 5, 2015 at 8:34 AM, Chad Baker cmba...@gmail.com wrote:

 Section 5.10 in the SRM Rev C.1 recommends using the power button to 
 power down the board and prevent contamination of the SD card or the 
 eMMC. 
 This section gives a brief explanation of why also.
 Chad


 On 8/5/2015 4:07 AM, lmje...@gmail.com wrote:

 Hi Gerald,

 Following the instructions on the BeagleBoard.org - getting-started 
 http://beagleboard.org/getting-started webpage, my team lead and I 
 have been powering up the BBB by using the provided USB cable to plug our 
 Beagle into our computers.  We didn't find instructions on powering it 
 down.  So, we have been powering it down by simply pulling the cable out. 
  
 By doing this, can we also get corruption?  If so, where is the shutdown 
 procedure documented?

 Lawrence

 On Sunday, October 13, 2013 at 12:19:54 PM UTC-7, Gerald wrote: 

 Nope. If you do it the way I just said, the board is powered off 
 after it is done. Then you can pull the power.  

 Pull the power without letting the kernel unmount the eMMC or SD 
 card, and you can get corruption. 

 Gerald



 On Sun, Oct 13, 2013 at 1:31 PM, arunbarn...@gmail.com wrote:

 So pulling out the power with properly shutting down the system 
 could corrupt the eMMC ??? 


 On Sunday, October 13, 2013 4:39:05 PM UTC+5:30, 
 arunbarn...@gmail.com wrote: 

 Hi,

 I am trying to use the beaglebone black (in factory default 
 settings) in a control application, where the BBB interfaces to a 20x4 
 character LCD, 18 button keypad, and a RS 232 connection using ttyO4 
 port 
 (connects to RS 485 network using appropriate drivers).

 I have almost developed the hardware and the software using Eclispe 
 C++ IDE. 

 As I am not using any batteries or other power backup devices for 
 the BBB, Do I have to implement a shutdown procedure for my users ?? 

 I have made a procedure in which the user presses a combination of 
 keys to get the shutdown option on the LCD, selecting the shutdown 
 option 
 runs the system(shutdown -h now) command in my C++ program.

 Is a shutdown procedure required for the BBB or will just pulling 
 out the +5V power jack be sufficient. 

 I have read in some sites that the eMMC could get corrupted causing 
 startup issues

 Please advise

 thanks
 a

 -- 
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Re: [beagleboard] Re: shutdown procedure required for beaglebone black ??

2015-08-21 Thread Gerald Coley 
It is a standard linux command to mount the drive.

Gerald


On Fri, Aug 21, 2015 at 5:02 PM, lmjeu...@gmail.com wrote:

 Hi Gerald,

 Oops, by may not necessary work, I mean, may not necessarily work.
  Will I need to develop SW that supports the power button function - that
 is, will I need to develop SW to enable the button?  We are refraining from
 powering up the BBB until we know for sure.

 Best regards,
 Lawrence


 On Monday, August 10, 2015 at 6:46:51 AM UTC-7, lmje...@gmail.com wrote:

 Hi Gerald,

 Do you mean that the power button function may not necessary work?  Is
 the SW that supports it SW that I will need to develop, like the C++ SW
 that arunbarn...@gmail.com was developing?

 Lawrence

 On Wednesday, August 5, 2015 at 9:07:57 AM UTC-7, Gerald wrote:

 Assuming that the SW supports the power button function.

 Gerald


 On Wed, Aug 5, 2015 at 8:34 AM, Chad Baker cmba...@gmail.com wrote:

 Section 5.10 in the SRM Rev C.1 recommends using the power button to
 power down the board and prevent contamination of the SD card or the eMMC.
 This section gives a brief explanation of why also.
 Chad


 On 8/5/2015 4:07 AM, lmje...@gmail.com wrote:

 Hi Gerald,

 Following the instructions on the BeagleBoard.org - getting-started
 http://beagleboard.org/getting-started webpage, my team lead and I
 have been powering up the BBB by using the provided USB cable to plug our
 Beagle into our computers.  We didn't find instructions on powering it
 down.  So, we have been powering it down by simply pulling the cable out.
 By doing this, can we also get corruption?  If so, where is the shutdown
 procedure documented?

 Lawrence

 On Sunday, October 13, 2013 at 12:19:54 PM UTC-7, Gerald wrote:

 Nope. If you do it the way I just said, the board is powered off after
 it is done. Then you can pull the power.

 Pull the power without letting the kernel unmount the eMMC or SD card,
 and you can get corruption.

 Gerald



 On Sun, Oct 13, 2013 at 1:31 PM, arunbarn...@gmail.com wrote:

 So pulling out the power with properly shutting down the system could
 corrupt the eMMC ???


 On Sunday, October 13, 2013 4:39:05 PM UTC+5:30,
 arunbarn...@gmail.com wrote:

 Hi,

 I am trying to use the beaglebone black (in factory default
 settings) in a control application, where the BBB interfaces to a 20x4
 character LCD, 18 button keypad, and a RS 232 connection using ttyO4 
 port
 (connects to RS 485 network using appropriate drivers).

 I have almost developed the hardware and the software using Eclispe
 C++ IDE.

 As I am not using any batteries or other power backup devices for
 the BBB, Do I have to implement a shutdown procedure for my users ??

 I have made a procedure in which the user presses a combination of
 keys to get the shutdown option on the LCD, selecting the shutdown 
 option
 runs the system(shutdown -h now) command in my C++ program.

 Is a shutdown procedure required for the BBB or will just pulling
 out the +5V power jack be sufficient.

 I have read in some sites that the eMMC could get corrupted causing
 startup issues

 Please advise

 thanks
 a

 --
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 --
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Re: [beagleboard] Re: shutdown procedure required for beaglebone black ??

2015-08-21 Thread lmjeung0 
Hi Gerald,

Oops, by may not necessary work, I mean, may not necessarily work. 
 Will I need to develop SW that supports the power button function - that 
is, will I need to develop SW to enable the button?  We are refraining from 
powering up the BBB until we know for sure.

Best regards,
Lawrence

On Monday, August 10, 2015 at 6:46:51 AM UTC-7, lmje...@gmail.com wrote:

 Hi Gerald,

 Do you mean that the power button function may not necessary work?  Is the 
 SW that supports it SW that I will need to develop, like the C++ SW that 
 arunbarn...@gmail.com was developing?

 Lawrence

 On Wednesday, August 5, 2015 at 9:07:57 AM UTC-7, Gerald wrote:

 Assuming that the SW supports the power button function.

 Gerald


 On Wed, Aug 5, 2015 at 8:34 AM, Chad Baker cmba...@gmail.com wrote:

 Section 5.10 in the SRM Rev C.1 recommends using the power button to 
 power down the board and prevent contamination of the SD card or the eMMC. 
 This section gives a brief explanation of why also.
 Chad


 On 8/5/2015 4:07 AM, lmje...@gmail.com wrote:

 Hi Gerald,

 Following the instructions on the BeagleBoard.org - getting-started 
 http://beagleboard.org/getting-started webpage, my team lead and I 
 have been powering up the BBB by using the provided USB cable to plug our 
 Beagle into our computers.  We didn't find instructions on powering it 
 down.  So, we have been powering it down by simply pulling the cable out.  
 By doing this, can we also get corruption?  If so, where is the shutdown 
 procedure documented?

 Lawrence

 On Sunday, October 13, 2013 at 12:19:54 PM UTC-7, Gerald wrote: 

 Nope. If you do it the way I just said, the board is powered off after 
 it is done. Then you can pull the power.  

 Pull the power without letting the kernel unmount the eMMC or SD card, 
 and you can get corruption. 

 Gerald



 On Sun, Oct 13, 2013 at 1:31 PM, arunbarn...@gmail.com wrote:

 So pulling out the power with properly shutting down the system could 
 corrupt the eMMC ??? 


 On Sunday, October 13, 2013 4:39:05 PM UTC+5:30, arunbarn...@gmail.com 
 wrote: 

 Hi,

 I am trying to use the beaglebone black (in factory default settings) 
 in a control application, where the BBB interfaces to a 20x4 character 
 LCD, 
 18 button keypad, and a RS 232 connection using ttyO4 port (connects to 
 RS 
 485 network using appropriate drivers).

 I have almost developed the hardware and the software using Eclispe 
 C++ IDE. 

 As I am not using any batteries or other power backup devices for the 
 BBB, Do I have to implement a shutdown procedure for my users ?? 

 I have made a procedure in which the user presses a combination of 
 keys to get the shutdown option on the LCD, selecting the shutdown 
 option 
 runs the system(shutdown -h now) command in my C++ program.

 Is a shutdown procedure required for the BBB or will just pulling out 
 the +5V power jack be sufficient. 

 I have read in some sites that the eMMC could get corrupted causing 
 startup issues

 Please advise

 thanks
 a

 -- 
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 --- 
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 -- 
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 -- 
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 ger...@beagleboard.org
 http://beagleboard.org/



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Re: [beagleboard] Re: shutdown procedure required for beaglebone black ??

2015-08-21 Thread lmjeung0 
Hi Gerald,

Please let us know we can unmount the drives and power down the BBB by 
either pushing the power button momentarily or using the Linux shutdown 
command.  We are refraining from powering up the BBB until we know how to 
power down the board correctly.

Lawrence

On Monday, August 10, 2015 at 6:46:56 AM UTC-7, lmje...@gmail.com wrote:

 Hi Gerald,

 So to unmount the drives and power down the BBB, I can either push the 
 power button momentarily or use the Linux shutdown command?

 Lawrence

 On Wednesday, August 5, 2015 at 5:39:06 AM UTC-7, Gerald wrote:

 By doing this you can get corruption. Linux requires that you unmount the 
 drives before powering down.

 There is also a Linux shutdown command that can be used.

 Gerald


 On Wed, Aug 5, 2015 at 4:07 AM, lmje...@gmail.com wrote:

 Hi Gerald,

 Following the instructions on the BeagleBoard.org - getting-started 
 http://beagleboard.org/getting-started webpage, my team lead and I 
 have been powering up the BBB by using the provided USB cable to plug our 
 Beagle into our computers.  We didn't find instructions on powering it 
 down.  So, we have been powering it down by simply pulling the cable out.  
 By doing this, can we also get corruption?  If so, where is the shutdown 
 procedure documented?

 Lawrence

 On Sunday, October 13, 2013 at 12:19:54 PM UTC-7, Gerald wrote:

 Nope. If you do it the way I just said, the board is powered off after 
 it is done. Then you can pull the power. 

 Pull the power without letting the kernel unmount the eMMC or SD card, 
 and you can get corruption.

 Gerald



 On Sun, Oct 13, 2013 at 1:31 PM, arunbarn...@gmail.com wrote:

 So pulling out the power with properly shutting down the system could 
 corrupt the eMMC ???


 On Sunday, October 13, 2013 4:39:05 PM UTC+5:30, arunbarn...@gmail.com 
 wrote:

 Hi,

 I am trying to use the beaglebone black (in factory default settings) 
 in a control application, where the BBB interfaces to a 20x4 character 
 LCD, 
 18 button keypad, and a RS 232 connection using ttyO4 port (connects to 
 RS 
 485 network using appropriate drivers).

 I have almost developed the hardware and the software using Eclispe 
 C++ IDE. 

 As I am not using any batteries or other power backup devices for the 
 BBB, Do I have to implement a shutdown procedure for my users ?? 

 I have made a procedure in which the user presses a combination of 
 keys to get the shutdown option on the LCD, selecting the shutdown 
 option 
 runs the system(shutdown -h now) command in my C++ program.

 Is a shutdown procedure required for the BBB or will just pulling out 
 the +5V power jack be sufficient. 

 I have read in some sites that the eMMC could get corrupted causing 
 startup issues

 Please advise

 thanks
 a

 -- 
 For more options, visit http://beagleboard.org/discuss
 --- 
 You received this message because you are subscribed to the Google 
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 -- 
 Gerald
  
 ger...@beagleboard.org
 http://beagleboard.org/



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Re: [beagleboard] Re: shutdown procedure required for beaglebone black ??

2015-08-10 Thread lmjeung0 
Hi Chad,

Thank you for pointing us to that section.  We missed seeing the 
recommendation, because it was somewhat implied.  We were searching for an 
instruction like To power down the board, do ...

Lawrence

On Wednesday, August 5, 2015 at 6:34:45 AM UTC-7, cmbaker3 wrote:

 Section 5.10 in the SRM Rev C.1 recommends using the power button to power 
 down the board and prevent contamination of the SD card or the eMMC. This 
 section gives a brief explanation of why also.
 Chad

 On 8/5/2015 4:07 AM, lmje...@gmail.com javascript: wrote:

 Hi Gerald,

 Following the instructions on the BeagleBoard.org - getting-started 
 http://beagleboard.org/getting-started webpage, my team lead and I have 
 been powering up the BBB by using the provided USB cable to plug our Beagle 
 into our computers.  We didn't find instructions on powering it down.  So, 
 we have been powering it down by simply pulling the cable out.  By doing 
 this, can we also get corruption?  If so, where is the shutdown procedure 
 documented?

 Lawrence

 On Sunday, October 13, 2013 at 12:19:54 PM UTC-7, Gerald wrote: 

 Nope. If you do it the way I just said, the board is powered off after it 
 is done. Then you can pull the power.  

 Pull the power without letting the kernel unmount the eMMC or SD card, 
 and you can get corruption. 

 Gerald



 On Sun, Oct 13, 2013 at 1:31 PM, arunbarn...@gmail.com wrote:

 So pulling out the power with properly shutting down the system could 
 corrupt the eMMC ??? 


 On Sunday, October 13, 2013 4:39:05 PM UTC+5:30, arunbarn...@gmail.com 
 wrote: 

 Hi,

 I am trying to use the beaglebone black (in factory default settings) 
 in a control application, where the BBB interfaces to a 20x4 character 
 LCD, 
 18 button keypad, and a RS 232 connection using ttyO4 port (connects to RS 
 485 network using appropriate drivers).

 I have almost developed the hardware and the software using Eclispe C++ 
 IDE. 

 As I am not using any batteries or other power backup devices for the 
 BBB, Do I have to implement a shutdown procedure for my users ?? 

 I have made a procedure in which the user presses a combination of keys 
 to get the shutdown option on the LCD, selecting the shutdown option runs 
 the system(shutdown -h now) command in my C++ program.

 Is a shutdown procedure required for the BBB or will just pulling out 
 the +5V power jack be sufficient. 

 I have read in some sites that the eMMC could get corrupted causing 
 startup issues

 Please advise

 thanks
 a

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Re: [beagleboard] Re: shutdown procedure required for beaglebone black ??

2015-08-10 Thread lmjeung0 
Hi Gerald,

Do you mean that the power button function may not necessary work?  Is the 
SW that supports it SW that I will need to develop, like the C++ SW that 
arunbarn...@gmail.com was developing?

Lawrence

On Wednesday, August 5, 2015 at 9:07:57 AM UTC-7, Gerald wrote:

 Assuming that the SW supports the power button function.

 Gerald


 On Wed, Aug 5, 2015 at 8:34 AM, Chad Baker cmba...@gmail.com 
 javascript: wrote:

 Section 5.10 in the SRM Rev C.1 recommends using the power button to 
 power down the board and prevent contamination of the SD card or the eMMC. 
 This section gives a brief explanation of why also.
 Chad


 On 8/5/2015 4:07 AM, lmje...@gmail.com javascript: wrote:

 Hi Gerald,

 Following the instructions on the BeagleBoard.org - getting-started 
 http://beagleboard.org/getting-started webpage, my team lead and I 
 have been powering up the BBB by using the provided USB cable to plug our 
 Beagle into our computers.  We didn't find instructions on powering it 
 down.  So, we have been powering it down by simply pulling the cable out.  
 By doing this, can we also get corruption?  If so, where is the shutdown 
 procedure documented?

 Lawrence

 On Sunday, October 13, 2013 at 12:19:54 PM UTC-7, Gerald wrote: 

 Nope. If you do it the way I just said, the board is powered off after 
 it is done. Then you can pull the power.  

 Pull the power without letting the kernel unmount the eMMC or SD card, 
 and you can get corruption. 

 Gerald



 On Sun, Oct 13, 2013 at 1:31 PM, arunbarn...@gmail.com wrote:

 So pulling out the power with properly shutting down the system could 
 corrupt the eMMC ??? 


 On Sunday, October 13, 2013 4:39:05 PM UTC+5:30, arunbarn...@gmail.com 
 wrote: 

 Hi,

 I am trying to use the beaglebone black (in factory default settings) 
 in a control application, where the BBB interfaces to a 20x4 character 
 LCD, 
 18 button keypad, and a RS 232 connection using ttyO4 port (connects to 
 RS 
 485 network using appropriate drivers).

 I have almost developed the hardware and the software using Eclispe 
 C++ IDE. 

 As I am not using any batteries or other power backup devices for the 
 BBB, Do I have to implement a shutdown procedure for my users ?? 

 I have made a procedure in which the user presses a combination of 
 keys to get the shutdown option on the LCD, selecting the shutdown option 
 runs the system(shutdown -h now) command in my C++ program.

 Is a shutdown procedure required for the BBB or will just pulling out 
 the +5V power jack be sufficient. 

 I have read in some sites that the eMMC could get corrupted causing 
 startup issues

 Please advise

 thanks
 a

 -- 
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 --- 
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 -- 
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 -- 
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 ger...@beagleboard.org javascript:
 http://beagleboard.org/


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Re: [beagleboard] Re: shutdown procedure required for beaglebone black ??

2015-08-10 Thread lmjeung0 
Hi Gerald,

So to unmount the drives and power down the BBB, I can either push the 
power button momentarily or use the Linux shutdown command?

Lawrence

On Wednesday, August 5, 2015 at 5:39:06 AM UTC-7, Gerald wrote:

 By doing this you can get corruption. Linux requires that you unmount the 
 drives before powering down.

 There is also a Linux shutdown command that can be used.

 Gerald


 On Wed, Aug 5, 2015 at 4:07 AM, lmje...@gmail.com javascript: wrote:

 Hi Gerald,

 Following the instructions on the BeagleBoard.org - getting-started 
 http://beagleboard.org/getting-started webpage, my team lead and I 
 have been powering up the BBB by using the provided USB cable to plug our 
 Beagle into our computers.  We didn't find instructions on powering it 
 down.  So, we have been powering it down by simply pulling the cable out.  
 By doing this, can we also get corruption?  If so, where is the shutdown 
 procedure documented?

 Lawrence

 On Sunday, October 13, 2013 at 12:19:54 PM UTC-7, Gerald wrote:

 Nope. If you do it the way I just said, the board is powered off after 
 it is done. Then you can pull the power. 

 Pull the power without letting the kernel unmount the eMMC or SD card, 
 and you can get corruption.

 Gerald



 On Sun, Oct 13, 2013 at 1:31 PM, arunbarn...@gmail.com wrote:

 So pulling out the power with properly shutting down the system could 
 corrupt the eMMC ???


 On Sunday, October 13, 2013 4:39:05 PM UTC+5:30, arunbarn...@gmail.com 
 wrote:

 Hi,

 I am trying to use the beaglebone black (in factory default settings) 
 in a control application, where the BBB interfaces to a 20x4 character 
 LCD, 
 18 button keypad, and a RS 232 connection using ttyO4 port (connects to 
 RS 
 485 network using appropriate drivers).

 I have almost developed the hardware and the software using Eclispe 
 C++ IDE. 

 As I am not using any batteries or other power backup devices for the 
 BBB, Do I have to implement a shutdown procedure for my users ?? 

 I have made a procedure in which the user presses a combination of 
 keys to get the shutdown option on the LCD, selecting the shutdown option 
 runs the system(shutdown -h now) command in my C++ program.

 Is a shutdown procedure required for the BBB or will just pulling out 
 the +5V power jack be sufficient. 

 I have read in some sites that the eMMC could get corrupted causing 
 startup issues

 Please advise

 thanks
 a

 -- 
 For more options, visit http://beagleboard.org/discuss
 --- 
 You received this message because you are subscribed to the Google 
 Groups BeagleBoard group.
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 -- 
 For more options, visit http://beagleboard.org/discuss
 --- 
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 BeagleBoard group.
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 -- 
 Gerald
  
 ger...@beagleboard.org javascript:
 http://beagleboard.org/


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Re: [beagleboard] Re: shutdown procedure required for beaglebone black ??

2015-08-05 Thread Gerald Coley 
By doing this you can get corruption. Linux requires that you unmount the
drives before powering down.

There is also a Linux shutdown command that can be used.

Gerald


On Wed, Aug 5, 2015 at 4:07 AM, lmjeu...@gmail.com wrote:

 Hi Gerald,

 Following the instructions on the BeagleBoard.org - getting-started
 http://beagleboard.org/getting-started webpage, my team lead and I have
 been powering up the BBB by using the provided USB cable to plug our Beagle
 into our computers.  We didn't find instructions on powering it down.  So,
 we have been powering it down by simply pulling the cable out.  By doing
 this, can we also get corruption?  If so, where is the shutdown procedure
 documented?

 Lawrence

 On Sunday, October 13, 2013 at 12:19:54 PM UTC-7, Gerald wrote:

 Nope. If you do it the way I just said, the board is powered off after it
 is done. Then you can pull the power.

 Pull the power without letting the kernel unmount the eMMC or SD card,
 and you can get corruption.

 Gerald



 On Sun, Oct 13, 2013 at 1:31 PM, arunbarn...@gmail.com wrote:

 So pulling out the power with properly shutting down the system could
 corrupt the eMMC ???


 On Sunday, October 13, 2013 4:39:05 PM UTC+5:30, arunbarn...@gmail.com
 wrote:

 Hi,

 I am trying to use the beaglebone black (in factory default settings)
 in a control application, where the BBB interfaces to a 20x4 character LCD,
 18 button keypad, and a RS 232 connection using ttyO4 port (connects to RS
 485 network using appropriate drivers).

 I have almost developed the hardware and the software using Eclispe C++
 IDE.

 As I am not using any batteries or other power backup devices for the
 BBB, Do I have to implement a shutdown procedure for my users ??

 I have made a procedure in which the user presses a combination of keys
 to get the shutdown option on the LCD, selecting the shutdown option runs
 the system(shutdown -h now) command in my C++ program.

 Is a shutdown procedure required for the BBB or will just pulling out
 the +5V power jack be sufficient.

 I have read in some sites that the eMMC could get corrupted causing
 startup issues

 Please advise

 thanks
 a

 --
 For more options, visit http://beagleboard.org/discuss
 ---
 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
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 ---
 You received this message because you are subscribed to the Google Groups
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-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/

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Re: [beagleboard] Re: shutdown procedure required for beaglebone black ??

2015-08-05 Thread Chad Baker 
Section 5.10 in the SRM Rev C.1 recommends using the power button to 
power down the board and prevent contamination of the SD card or the 
eMMC. This section gives a brief explanation of why also.

Chad

On 8/5/2015 4:07 AM, lmjeu...@gmail.com wrote:

Hi Gerald,

Following the instructions on the BeagleBoard.org - getting-started 
http://beagleboard.org/getting-started webpage, my team lead and I 
have been powering up the BBB by using the provided USB cable to plug 
our Beagle into our computers.  We didn't find instructions on 
powering it down.  So, we have been powering it down by simply pulling 
the cable out.  By doing this, can we also get corruption?  If so, 
where is the shutdown procedure documented?


Lawrence

On Sunday, October 13, 2013 at 12:19:54 PM UTC-7, Gerald wrote:

Nope. If you do it the way I just said, the board is powered off
after it is done. Then you can pull the power.

Pull the power without letting the kernel unmount the eMMC or SD
card, and you can get corruption.

Gerald



On Sun, Oct 13, 2013 at 1:31 PM, arunbarn...@gmail.com
javascript: wrote:

So pulling out the power with properly shutting down the
system could corrupt the eMMC ???


On Sunday, October 13, 2013 4:39:05 PM UTC+5:30,
arunbarn...@gmail.com wrote:

Hi,

I am trying to use the beaglebone black (in factory
default settings) in a control application, where the BBB
interfaces to a 20x4 character LCD, 18 button keypad, and
a RS 232 connection using ttyO4 port (connects to RS 485
network using appropriate drivers).

I have almost developed the hardware and the software
using Eclispe C++ IDE.

As I am not using any batteries or other power backup
devices for the BBB, Do I have to implement a shutdown
procedure for my users ??

I have made a procedure in which the user presses a
combination of keys to get the shutdown option on the LCD,
selecting the shutdown option runs the system(shutdown -h
now) command in my C++ program.

Is a shutdown procedure required for the BBB or will just
pulling out the +5V power jack be sufficient.

I have read in some sites that the eMMC could get
corrupted causing startup issues

Please advise

thanks
a

-- 
For more options, visit http://beagleboard.org/discuss

---
You received this message because you are subscribed to the
Google Groups BeagleBoard group.
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it, send an email to beagleboard...@googlegroups.com
javascript:.
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https://groups.google.com/groups/opt_out.


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