Image Deployment; Running An Image; Booting Spl (Secondary Program Loader)/U-Boot - Avnet SMARC MSC SM2S-IMX8MINI User Manual

Modifications of conf/local.conf are not traced.
-
- This will checkout exactly the versions used by version_layer. It is then no longer possible to use scripts/update.py to pull the latest
changes on the branch. A fresh checkout of MSC-LDK is necessary. The directories downloads and sstate-cache can be moved or copied
to improve build speed.
Time stamps in the image will be updated, e.g. in /etc/issue.
-

7.2.5 Image Deployment

See [5], Chapter 6, "Image Deployment"
7.2.5.1 Flashing an SD card image
To flash an SD card image, run the following command:
sudo dd if=<image name>.sdcard of=/dev/sd<partition> bs=4MiB conv=fsync

7.3 Running an Image

7.3.1 Booting SPL (secondary program loader)/U-Boot

The TEST# pin is used to select one of the following boot schema.
7.3.1.1 TEST# = LOW: Forced booting SPL/U-Boot from carrier SD card
With TEST# = LOW (e.g. on MSC SM2-MB-EP1 Carrier Board: "Test Mode Select" DIP Switch = ON), the iMX8MMini Boot ROM code uses the carrier
SD card as boot media regardless of whether the module eMMC flash contains a properly programmed system image or not.
Figure 7-16. SPL boot selector on EP1 carrier board (S2801).
Forced carrier SD card boot mode.
MSC SM2S-IMX8MINI
User Manual
71 / 87