On 27.05.2014 19:45, Dr. Michael J. Chudobiak wrote: >> A battery powered >> cape for a graceful power-down might be option. I don't have the >> knowledge to design/build one (relatively) easily. > > On the BeagleBone white, I use a 5F supercap on the "battery" > terminals. When my hardware detects failing prime power it flags an > input that my software watches for. My software then immediately uses > the magic-sysrq to sync disks and remount as read-only, to protect the > filesystem. The supercap provides just enough power/time to do that. > > Also, I use full data+metadata journaling on the filesystem (ext4). > > It's been very robust so far. > > - Mike >
Sounds cool and easy to implement hardware-wise. Can you share the code for that? Florian -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
