Never mind. I should have been using "speed grade 3" not 1 for my model of e310.
For future googlers this page [2] talks about how to read the product
number to determine the speed grade.
[2]
https://kb.ettus.com/Ettus_USRP_E300_Embedded_Family_Hardware_Resources#SD_Card_Images
On Wed, Feb 19, 2
Hello,
I'm having trouble booting from the latest sdcard images for the e310. [1]
I've tried a couple of different sd-cards, but consistently error out
in uboot with the following error
Copying FIT from SD to RAM...
5866988 bytes read in 338 ms (16.6 MiB/s)
## Loading kernel from FIT Image at
