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  1. Build Rootfs (Buildroot example):

  • 4) Install build dependencies for BSP/rootfs

    • Ensure scripts have execute permissions: chmod +x *.sh
    • Power board; interrupt U-Boot if needed to change env vars or boot args.
    • Set bootargs (console, root=PARTUUID or /dev/mmcblk0p2).

    USB/SD Card Method

    : For SSD20x series, you can use the make_usb_upgrade_sigmaster.sh script to generate a SigmastarUpgrade.bin file, which is then copied to a FAT32-formatted drive.

    SDK Unpacking

    : Unzip the provided SDK source code (often referred to as Alkaid ) into your working directory.

    Introduction