Rev. C eMMC size question

[Steven Welch]

I have a new Rev. C board and everything I have read indicates the eMMC is 4GB. However, after removing a few files (from Robert Nelson's posts about freeing up some memory) and adding some others (a couple of node js packages), I checked the size with df and here is the result:

root@beaglebone:~# df -h

Filesystem                                              Size  Used Avail Use% Mounted on

rootfs                                                  1.7G  1.2G  383M  76% /

udev                                                     10M     0   10M   0% /dev

tmpfs                                                   100M  588K   99M   1% /run

/dev/disk/by-uuid/10c4da64-555d-4cf9-b4b0-d39c75c9886e  1.7G  1.2G  383M  76% /

tmpfs                                                   249M     0  249M   0% /dev/shm

tmpfs                                                   249M     0  249M   0% /sys/fs/cgroup

tmpfs                                                   100M     0  100M   0% /run/user

tmpfs                                                   5.0M     0  5.0M   0% /run/lock

/dev/mmcblk0p1                                           96M   74M   22M  78% /boot/uboot

This looks like 2GB to me, not 4. How do I gain access to the other 2GB?

[William Hermans]

You need to resize the rootfs image to take up the rest of the eMMC. Whats left availible that is.

--
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...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[Robert Nelson]

On Sat, Jun 14, 2014 at 8:05 PM, Steven Welch <docjs...@gmail.com> wrote:
> I have a new Rev. C board and everything I have read indicates the eMMC is
> 4GB. However, after removing a few files (from Robert Nelson's posts about
> freeing up some memory) and adding some others (a couple of node js
> packages), I checked the size with df and here is the result:

It looks to me like you have a Rev B with 2GB..

The factory flasher script calls sfdisk with:

1,96,0xe,*
,,,-

So you get a 96Mb fat partition, and the rest of the space gets setup
for the 2nd rootfs partition.

Regards,

--
Robert Nelson
http://www.rcn-ee.com/

[Steven Welch]

Robert,

That's what I thought but the box clearly says Rev C and the sticker on the side of the P8 headers says C as well.

I tried resizing as suggested:

root@beaglebone:~# sudo resize2fs /dev/mmcblk0p2

resize2fs 1.42.5 (29-Jul-2012)

The filesystem is already 444160 blocks long.  Nothing to do!

So, what to do next??? Are there actually Rev C boards with 2GB eMMC?

 

[Steven Welch]

So I looked up the number on the Micron website and sure enough, the eMMC is a 2GB. So, buyers out there, beware. I bought my BBB from Adafruit a couple of weeks back (had to wait on stock to arrive) specifically as a Rev C board and paid more for a Rev C board. I am a little bothered by the fact that I was sold a Rev C board that is marked as a Rev C board and yet it does not meet the Rev C specs. 

[Robert Nelson]

On Jun 14, 2014 10:18 PM, "Steven Welch" <docjs...@gmail.com> wrote:
>
> So I looked up the number on the Micron website and sure enough, the eMMC is a 2GB. So, buyers out there, beware. I bought my BBB from Adafruit a couple of weeks back (had to wait on stock to arrive) specifically as a Rev C board and paid more for a Rev C board. I am a little bothered by the fact that I was sold a Rev C board that is marked as a Rev C board and yet it does not meet the Rev C specs. 

Contact them asap, might end up being a bigger stocking issue.

[Steven Welch]

On Saturday, June 14, 2014 10:27:14 PM UTC-5, RobertCNelson wrote:

On Jun 14, 2014 10:18 PM, "Steven Welch" <docjs...@gmail.com> wrote:
>
> So I looked up the number on the Micron website and sure enough, the eMMC is a 2GB. So, buyers out there, beware. I bought my BBB from Adafruit a couple of weeks back (had to wait on stock to arrive) specifically as a Rev C board and paid more for a Rev C board. I am a little bothered by the fact that I was sold a Rev C board that is marked as a Rev C board and yet it does not meet the Rev C specs. 

Contact them asap, might end up being a bigger stocking issue.

I've posted on the Adafruit forum. Hopefully, this is an anomaly and not one piece of a big problem. For my use, the Rev B board will work but I would have liked the bigger eMMC.