[[File:Xub-nor.png|thumb|center|350px|NOR flash default partitioning]]
By default, U-Boot environment is configured to retrieve Linux kernel image stored in the microSD card. In turn, Linux kernel shall mount root file system from the <code>mmcblk0p2</code> partition of the [#XUELK_microSD_Layout microSD card itself]. At the end of boot process, Linux shell shall be available on the serial console.
The following dump shows the typical messages printed out during bootstrap process.