![]() U-Boot in Flash, Kernel in TFTP server and Rootfs from NFS server Supporting SATA boot will require a modified U-Boot and this functionality has not been validated by Toradex. SATA is not supported in the Toradex-provided bootloader. #Linux u boot how toIn order to boot the kernel and root filesystem from a removable media such an SD card, a USB stick or a SATA hard drive, refer to the article on how to Boot From an SD Card. U-Boot in Flash, Kernel and Rootfs in SD Card / USB / SATA drive After installing an image (ideally through the Toradex Easy Installer) in any of our supported modules the booting sequence will automatically proceed. The variable bootcmd is properly set to load the kernel and pass the addresses of the device trees and the root filesystem, as well as additional kernel command line arguments. This is the standard configuration and the one which all our images default to. Boot Scenarios U-Boot, Kernel and Rootfs in Flash In order to set up the different boot scenarios, it is important to understand how to enter the U-Boot console and modify and store the environment variables that tell the bootloader how to find and load the rest of the elements. We also comment (and refer to) the Distro Boot way to boot. In this article we describe how to set up each of the above scenarios, as well as certain eMMC booting configurations. This configuation is common for kernel/application development and debugging from a connected host machine U-Boot in flash, kernel in a remote TFTP server and rootfs in a remote NFS server.It is also helpful for systems with scarce resources (e.g. #Linux u boot OfflineThis configuation is used for kernel/application development and debugging in isolated or offline systems.
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