The goal of the document is to illustrate how to build SP7021 image and install it with Raspbian rootfs on eMMC. Raspbian is a famous and popular Linux distribution. It is based Debian and for running on Raspberry Pi boards. Raspbian is released in form of SD card image. Raspbian image file of SD card can be downloaded from web of Raspbian foundation. Users can then write the image file into an SD card. The SD card image consists of two partitions. One is boot partition which is formatted to DOS/Windows FAT32 file-system and the other is rootfs partition which is formatted to Linux Ext4 file-system. boot partition contains files, including boot-loader, Linux kernel image, and etc, for booting from Raspberry Pi boards. rootfs partition contains files of whole root file-system of Linux. To run Raspbian on eMMC on SP7021 platforms, we need to replace all files of rootfs partition of eMMC with Raspbian’s.
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From log, file system on rootfs partition (/dev/mmcblk0p8) was extended to 1,899,447 blocks (1,899,477 x 4KiB = 7,419 MiB). Note that this step is very important. Without this step, we cannot use all capacity of an eMMC device.
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“ISP all: Done” means all images were written to eMMC and verified successfully.
Note that in-system-program (ISP) of SP7021 does not support USB hub. The USB flash drive for ISP should be plugged into USB socket of SP7021 board directly.
If you are using Banana Pi BPI-F2P boards, please plug you USB flash drive to the micro USB socket for ISP. It is the only USB socket that is connected to SP7021 directly.
20. Boot Linux from eMMC device
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