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, <[email protected]> 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, <[email protected]> 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, [email protected] >>> 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 >>> an email to [email protected]. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >> -- > 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 an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- Gerald [email protected] http://beagleboard.org/ -- 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 an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
