UCM-iMX8M-Mini: U-Boot: Update
Revision as of 01:16, 23 October 2020 by imported>Igor.vaisbein (→Introduction)
Introduction
In order to run correctly, UCM-iMX8M-Mini Linux requires compatible u-boot version:
| U-boot version | Linux build version |
|---|---|
| 1.3 | 1.x |
| 2.0 | 2.x |
Check U-Boot version
- The U-Boot version string is displayed during boot. Also this string can be retrieved with the version command.
Example:
U-Boot 2020.04-ucm-imx8m-mini-2.0-5.4.24-2.1.0+g4979a99482 (Sep 08 2020 - 14:39:42 +0000)
Where: machine name is highlighted in blue; version number in yellow.
Updating U-Boot
Use an appropriate Linux image. Write the image to a micro-SD card and boot from it following the instruction. Issue the following command:
cl-uboot
Choose the block device to be flashed in the menu.
Note that with previous versions u-boot was stored in User partition of eMMC devices; to overwrite it, choose the destination boot device mmcblk2. Once the boot loader is updated successfully, the OS image can be updated as described here.
