Linux 5.10 Yocto SDK
V2.1
9/25
© MicroSys Electronics GmbH 2022
5
Restoring The Default Images
5.1
Boot Media
5.1.1.1.1
CRX05
Per default the board will boot into Linux from the SD card (assuming you have
inserted it correctly). The alternative boot media are provided so that you can
experiment. In addition, they serve as a means of recovery should you accidentally
corrupt or delete any of the boot images. The following table shows how to select
between the three boot media. Note that booting from NAND Flash is only
supported on the MPX-LS1043A.
The accompanying SD card contains a complete U-Boot, Linux kernel and root
filesystem whereas only U-Boot is programmed in the SPI Flash (and also in NAND
on the MPX-LS1043A).
The default images for each boot media are provided on the USB stick delivered
with the Evaluation Kit. The following sections describe how to deploy these
images to the respective boot media.
Copy the build images to your nfsserver directory on a Linux host. If you are
running on a Windows host, then use the directory shared between Windows and
your Linux VM (VirtualBox or VMware). Also for Windows hosts you will need to
have a TFTP server running.
Setting
SW 1-1
SW 1-2
Boot
device
Features
Boot
location
OFF
OFF
QSPI Flash
module
OFF
ON
NAND Flash
module
ON
OFF
SD/MMC
-
carrier board
ON
ON
SD/MMC
-
-
carrier board
