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*insert microSD card in the slot J13.
[[File:Placeholder.png|thumb|center|600px|Target setup for first boot]]
Once power is applied to the target, the U-Boot bootloader will be fetched from the NAND flash for the SDV04-lite board and from the NOR flash for the SDV04-ul board, and executed. Boot messages will be printed out to the serial console. Redundant U-Boot environment is stored in the NAND /NOR flash as well, as depicted in the following image. [[File:Sdvx-mmcXub-partition-tablenor.png|center|thumb|center|600px686x686px|microSD partition table]]
By default, U-Boot is configured to retrieve Linux kernel image stored in the microSD card. In turn, Linux kernel shall mount the correct root file system from the microSD card depending on the version of the board one is using. For the '''lite''' version, the root file system is stored in the <code>mmcblk0p2</code> partition, while the '''ul''' uses the <code>mmcblk0p3</code> partition. At the end of the boot process, Linux shell shall be available on the serial console.
