BBB not detecting/recognizing eMMC

[sieg.al...@gmail.com]

Hi,

I am using an Ubuntu image for the BBB rev c and am using this tutorial for manually putting together the SD card image rather than using the pre-made flasher image ( which is flashed onto the eMMC). This is because I tweaked the U-boot so that the environment is maintained in the eMMC rather than on an EXT4 file. In order to do that, I just hard coded the variables that would have been set by uEnv.txt into the default environment for testing purposes. Specifically, the following vars:

-uname_r= <my_kernel_version>

-enable_uboot_overlays=1

-uboot_overlay_pru=/lib/firmware/AM335X-PRU-UIO-00A0.dtbo

After getting it to boot successfully  from my SD card, I noticed that when running 'lsblk' I do not see the eMMC's partitions that I eventually want to write my environment to. This is what I see: 

NAME        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT

mmcblk0     179:0    0 29.7G  0 disk

└─mmcblk0p1 179:1    0 29.7G  0 part /

Why is it that I can't view mmcblk1 (the eMMC) as well as mmcblk1boot0 and mmcblk1boot1? Is it something that needs to be updated in fstab? 

I used an Ubuntu flasher image on the eMMC and when I boot from there, I am able to see both the SD card and the eMMC:

NAME         MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT

mmcblk0      179:0    0 29.7G  0 disk

└─mmcblk0p1  179:1    0 29.7G  0 part

mmcblk1      179:8    0  3.6G  0 disk

└─mmcblk1p1  179:9    0  3.6G  0 part /

mmcblk1boot0 179:16   0    2M  1 disk

mmcblk1boot1 179:24   0    2M  1 disk

 but when I boot from SD I cant see the eMMC. I did not disable the eMMC overlay as it shows in the serial debug that it got loaded in. Not sure what I can do about this.

Thanks in Advance.