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.