Probably not. I should clarify that by a "hard reboot" I mean that essentially someone pulls the plug (or toggles a switch in the back). So no effort (to my knowledge) is made to unmount the micro SD card.
On Monday, March 19, 2018 at 3:53:29 PM UTC-7, Wulf Man wrote: > > does it unmount properly every time on reboot ? > > On 3/19/2018 3:43 PM, Troy Weber wrote: > > I will try that. I read up on *noatime*. > > *noatime* > Do not update inode access times on this filesystem (e.g., for > faster access on the news spool to speed up news servers). This > works for all inode types (directories too), so implies > nodiratime. > > > If this works, I'll be curious why. I guess I don't know enough about > inodes just yet to understand why this might be a solution. > > On Monday, March 19, 2018 at 3:05:22 PM UTC-7, RobertCNelson wrote: >> >> On Mon, Mar 19, 2018 at 4:55 PM, Troy Weber <[email protected]> wrote: >> > Hello! >> > >> > I have an application running on the Beaglebone Black. It runs from the >> eMMC >> > because we need to mount a blank SD card and occasionally store data or >> > video on the external SD card. Here are some details to jog ideas: >> > >> > using a Bealgebone black >> > connected to a powered hub and running 2 led strips and 1 camera >> > made a custom cape/shield that allows us to interface with >> > >> > an RGB button >> > a 16x2 char lcd >> > an optically isolated relay module >> > >> > the relay module runs a solenoid circuit (in which I'm currently >> debugging >> > the need for a flyback diode) >> > the SD card is mounted using /etc/fstab with the line /dev/mmcblk0p1 >> > /media/sd auto auto,nofail,user,dmask=022,fmask=111 0 0 >> > SD cards are inexpensive and found here: >> > >> https://www.amazon.com/gp/product/B00WUCNGVQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 >> >> > >> > My application is writing files to the SD card only on certain >> occasions >> > during which the Beaglebone will not be hard-rebooted. However, it will >> be >> > hard-rebooted (and the application started by systemd on next boot) as >> a >> > means of shutting it down. >> > >> > The problem is that I've recently began to discover issues with the >> blank SD >> > card on next boot after a hard reboot. For a short time I can touch and >> > write vim files on the card just fine. Once I start up the node.js >> program, >> > part way through it complains about the SD card being read-only. From >> then >> > on I cannot touch or vim files anymore. So I reformat the card and copy >> the >> > configuration files back on. I've noticed that one of my configuration >> files >> > is chopped short. >> > >> > Here are some things I've tried and intend to try: >> > >> > have tried >> > >> > removing the power to the hub which seemed to be back-powering the BBB >> > (still fails on reboot) >> > stopping the program that writes files entirely (still fails on reboot) >> > >> > intend to try >> > >> > writing the configuration files elsewhere (on the eMMC for example) >> > better SD cards >> > >> > In the meantime, any ideas? >> >> check the actual mount options, and if not enabled add "noatime".. >> >> Regards, >> >> -- >> Robert Nelson >> https://rcn-ee.com/ >> > -- > 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] <javascript:>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/1df4730c-c024-4e1f-b0c1-2fbdf83ac714%40googlegroups.com > > <https://groups.google.com/d/msgid/beagleboard/1df4730c-c024-4e1f-b0c1-2fbdf83ac714%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > > > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/406743ed-feaa-4675-b5c0-ccb77786f0de%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
