first, the SD boot disk production
1. Download the SD Boot disk tool
Sdfuse_q
2. Insert the SD card and format
(1) View SD card: sudo fdisk-l
(2) Format SD card: sudo mkfs-t vfat/dev/sdb
3. Reinsert the SD card
(1) Create the directory sdupdate in the SD card and Copy the U-boot-fs4412.bin (2013.01 version) to this directory
(2) go to the Sdfuse_q directory and execute: sudo./mkub Oot.sh/dev/sdb; To write the Uboot (version 2010.03) in the Sdfuse_q directory to an SD card
second, u-boot burning write
1. Connect the Development Board serial port COM2 and computer USB, run the serial tool, such as Sudo minicom-s
2. Insert a good SD boot disk into the SD card slot
3. turn on the power supply after switching the dial switch to (SW1) (SD boot mode )
4. Press any key during the countdown to execute Sdfuse flashall, The goal is to write the U-boot-fs4412.bin in the SD card Sdupdate directory to the beginning of the eMMC
5. turn off the power supply, the dial switch SW1 to 0110 (EMMC start mode ) , turn on the power can see the following interface to indicate the success of the burn write
Third, loading the kernel and file system from EMMC
1. Copy the Uimage to ubuntu /tftpboot
FS4412 System porting