...for exactly what is unclear, on headless RPi's in remote areas especially. Does someone know more about how this reserve disk threshold works? Can it possibly help an untrained operator, in a highly offline community, when SD-card-as-primary-disk hits that threshold?
Certainly WordPress, X Windows (and no doubt others) silently fail upon reaching this threshold, rendering the entire system useless, from the perspective of a low-skill owner-operator (as is the most common case in the developing world). So huge thanks to Tim Moody (with George Hunt's assistance) who changed this threshold from 4% to 1% as follows: tune2fs -m 1 /dev/mmcblk0p2 As can be viewed with the "du" (disk usage) command. The challenge is that SD-based digital libraries are Almost Always nearly full, by design, when remote educators ask (and deserve) all the best possible materials. Nor do we want to discourage constructionist activities that will occasionally gobble up a bit of SD/disk! So More Generally: how exactly might this 4% threshold (pick your favorite percentage, no matter) materially help remote owner-operators, not steeped in Linux Skillz? As so many things start failing together when Raspbian SD card "disks" reach that reserve threshold — such that most remote/offline educators and owner-operators will simply stop using their RPi3 digital library at that point — particularly if it's headless :( Suggestions from anyone?! *In principle a http://en.wikipedia.org/wiki/Distant_Early_Warning_Line <http://en.wikipedia.org/wiki/Distant_Early_Warning_Line> saves lives, but if Raspbian/Internet-in-a-Box/Etc do not have a GUI-or-similar alert to signal approaching disk-full danger & facilitate the needed "disk" cleanup, is this counterproductive, worst case perhaps creating a false sense of security among implementers?* *(If so wasting impoverished citizens' prescious SD card funds to no benefit, or worse giving them a false sense security around RPi reliability alongside implementers?)*
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