I should also add, that I tested USB read / write speeds a couple years ago. Reads were actually slower than NFS, but write were around 20MB/s.
Anyway, we're talking ancient 3.8.x, so perhaps with the newer 4.1.x kernels that's been improved ? On Mon, Dec 7, 2015 at 8:55 AM, Lee Armstrong <[email protected]> wrote: > Yeah thanks William, I was hoping there was a serial method but thinking > that through I think it would be slower than an SD card! > > > On Mon, Dec 7, 2015 at 3:53 PM, William Hermans <[email protected]> wrote: > >> One other option not mentioned. Which is "burning" from USB. >> >> Pretty much, all methods requires an sdcard, period. So, just using a >> large sdcard, with a small boot / rootfs, and a larger partition mounted, >> where every with all the data needed to be "burned" to eMMC. Thats all >> that's needed. >> >> So the data partition can be anything, then it's just a matter of >> mounting that media, and using it exactly how an sdcard would be used in >> it's stead. network mount, sdcard, USB media, whatever. It all the same at >> this point. >> >> I do recall something about "serial boot", but meh that sounds like a >> huge hassle . . . but also note that an NFS mount will be slower than both >> USB, or using the sdcard directly. In fact, for reads, I do not think >> anything will be faster than sdcard . . . in this context. >> >> On Mon, Dec 7, 2015 at 8:46 AM, Lee Armstrong <[email protected]> wrote: >> >>> Thanks for all of your experiences. Interesting you use the SD in >>> production. That is similar to what I am doing now. >>> >>> Günter, that is much quicker than the 5 minutes I have it down to at the >>> moment so may invest some time in that process. >>> >>> Lee >>> >>> >>> On Monday, December 7, 2015 at 2:56:56 PM UTC, dl4mea wrote: >>>> >>>> Hello Lee, >>>> >>>> my process is that I have a running Linux on a bootable SD card. >>>> As a autostart service, there is a scripted executed, which performs >>>> >>>> 1) partitioning of the eMMC card >>>> 2) copy u-boot.bin and MLO to the first sectors of the eMMC >>>> 3) format the 1st (and only) partition with ext4 file system >>>> 4) unzip/untar a master tar.gz from the boot media to the data partition >>>> 5) patch the extracted uEnv.txt with the actual UUID of the partition >>>> on eMMC >>>> 6) initiate regeneration of ssh host keys (touch >>>> /etc/ssh/ssh.regenerate) >>>> 7) sync >>>> 8) power off >>>> >>>> That takes about 1min to flash one Beaglebone. It takes somewhat longer >>>> if the BBB is not connected to a network, because then it needs a network >>>> timeout to proceed >>>> >>>> cheers, Günter (dl4mea) >>>> >>>> >>>> >>>> -- >>> 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 a topic in the >> Google Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/beagleboard/n6a7J_Tby4w/unsubscribe. >> To unsubscribe from this group and all its topics, 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. > -- 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.
