> > *BTW, 8192 is all mostly tied to fat, which we don't use anymore by > default...* > > * > https://wiki.linaro.org/WorkingGroups/KernelArchived/Projects/FlashCardSurvey > <https://wiki.linaro.org/WorkingGroups/KernelArchived/Projects/FlashCardSurvey>* > > * under: "FAT optimization"*
Some people seem to think that 8192 sectors is where an sdcard needs to start in order to perform the best, and to keep from "destroying" the card. Something to do with where erase blocks start and all that but . . . I've been using 2048 now for 3 years with this hardware using the same sdcard, and have written at least 50 fresh images to it . . . It's not as though this hardwares sdcard controller is the fastest around either . . . because it's not. From what I've read for performance specs of the rPI's sdcard. This one is about half as fast. BUt the rPI also does not have an on board eMMC either. Anyway, there seems to be a lot of concern about prematurely killing sdcard using wrong sector values, and perhaps that is true, but I've yet to see a card failure yet on our BBB's . . . On Sun, Feb 14, 2016 at 5:47 PM, Robert Nelson <[email protected]> wrote: > On Sun, Feb 14, 2016 at 6:43 PM, Robert Nelson <[email protected]> > wrote: > > On Sun, Feb 14, 2016 at 6:26 PM, joelk <[email protected]> wrote: > >> > >> I downloaded the debian 7.9 console image > >> (bone-debian-7.9-console-armhf-2015-11-03-2gb.img) and wrote it to a > micro > >> sd card using dd: > >> > >> dd bs=4M if=bone-debian-7.9-console-armhf-2015-11-03-2gb.img of=/dev/sdb > >> > >> I notice that after flashing, the sdb1 partition on the card begins at > >> sector 2048. The original formatting of these cards have the data area > >> beginning at sector 8192 and other sd card images that I've written > (e.g. > >> Raspbian Jessie) also start at sector 8192. I was under the impression > that > >> this was done to reduce the number of pages that have to be rewritten > when > >> data is saved to the card. > > BTW, 8192 is all mostly tied to fat, which we don't use anymore by > default... > > > https://wiki.linaro.org/WorkingGroups/KernelArchived/Projects/FlashCardSurvey > > under: "FAT optimization" > > 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]. > 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]. For more options, visit https://groups.google.com/d/optout.
