Excellent, I think this really helps to clarify a lot of the questions hanging in the air.
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Good information and thank you Jason for sharing. I see there is also someone else producing miniature versions of the BBB, but . . . not my own thing.
>> email to beagleboard+unsubscribe@googlegroups.com.
Charles Steinkuehler
cha...@steinkuehler.net
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Just about to post this to http://beagleboard.org/blog, but it
wouldn't hurt to get a bit of community feedback before pushing this
out there....
On Sun, 13 Apr 2014 19:07:00 -0400
Jason Kridner <jkri...@beagleboard.org> wrote:
--8<--
> To provide the best experience of using Debian on BeagleBone Black, we
> are connecting the switch-over to an increase in the on-board eMMC
> flash storage from 2GB to 4GB, leaving more free room in which you can
> work. The eMMC is faster and more reliable than micro-SD cards, so
> this is adding a lot of value---and a little bit of cost.
>
> These BeagleBone Blacks with Debian and 4GB eMMC will be called Rev C
> and they will likely cost a bit more at most distributors. This extra
> money is helping CircuitCo pay for the additional expense of the eMMC,
> but also to cover costs for ramping production to higher-than-ever
> rates.
>
> With the additional capacity CircuitCo is bringing on, we expect to be
> able to fill all end-user back-orders for the Rev B boards by early
> May and shift all production to Rev C. With around 150,000 boards on
> *distributor* back-orders, we'll be working with distributors to
> quickly accept board shipments such that CircuitCo isn't sitting on
> any units.
>
So no more 2GB eMMC models ever? What about one with no eMMC
at all? I know there are more than a few people here that boot from
network, sdcard or usb.
Another thought occurred, has beagle or circuitco done any long duration
eMMC testing? How graceful will the BBB handle a failed eMMC part?
Failed as-in worn out from use not a defect. I think some people are
concerned with eMMC failures and so they don't use it or don't rely
on it.
On Mon, 14 Apr 2014 07:01:14 -0400
Jason Kridner <jkri...@beagleboard.org> wrote:
>
> Never say never, but we are unlikely to make any more 2GB eMMC models.
> I've been kicking around the idea of doing a kickstarter for a no-eMMC
> model, but I'd like to wait a month or two to see how the Rev C and
> Element14 boards are doing out there.
We call this a not-yes. Or not-yet-no.
Do you know what number of boards is the sweet spot for manufacture?
I'd guess it depends on the manufacturer.
What would be required for a manufacturer to make the BBB with no
eMMC? Are there any impediments to providing a PCB maker with
all the information and paying them to make 50 BBB? What
restrictions apply? Does the design and goal need to be annointed
or blessed to make it legal and legit?
> The only data we have is from the manufacturer and the community.
> After a year, we aren't seeing wear-out issues. The ext4 file system
> if fairly robust, but if writes start failing, end-user failures can
> occur in odd ways. If you are creating a mission-critical app that
> must stay deployed for many years without the ability to perform
> replacements, I'd encourage you to alter the eMMC contents to
> read-only, except for your critical data acquisition.
There was some mention on this list that mixing read-only with
writable partitions on eMMC was potential problem since eMMC
wear-leveling don't know partitions.
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On it's way! Oh yeah!
-david
Just about to post this to http://beagleboard.org/blog, but it
wouldn't hurt to get a bit of community feedback before pushing this
out there....
Element14 has a world-wide reach and a notable production capacity.
With all of the growing demand for BeagleBone Black, they will need
it. I consider this a huge win for open hardware!
--Jason
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