Menu interface, press:
0: Enter the parameter Settings menu
4: Enter the start-Up Settings menu
X: According to the actual selection of the desired boot system, 0 means that the default startup mode is set to ubuntu,1 means the default startup
The system is set to Android. 2 indicates that the Android system will be started with NFS using the default TFTP.
S: Save the settings and use the system set here by default the next time you start.
The default mode set here will be used the next time the system is started.
##### Boot for E9 Main Menu #####
[1]boot from eMMC
[2]boot from SDcard
[3]boot from TFTP
[5]download from SDcard
[0]setting Boot args//Enter uboot start parameter Settings menu
[Q]exit to command mode
Enter your selection:0
##### param setting #####
[1]setting NFS Args
[2]setting tftp args
[3]setting Display args
[4]setting Default boot//settings
[S]save setting
[Q]quit
Enter your Selection:4
##### param setting #####
[1]ubuntu used eMMC//set default from eMMC to start Ubuntu system
[2]android used eMMC//set default from eMMC to start Android system
[3]linux used eMMC//Set default boot Linux system from eMMC
[4]android used TFTP & NFS//Set default download kernel from TFTP and Mount NFS Android system
[S]save setting
[Q]quit
Enter your Selection:1
##### param setting #####
[1]ubuntu used eMMC
[2]android used eMMC
[3]android used TFTP & NFS
[S]save setting//Parameters are not saved by default, to save the parameters the user wants to select "Save Settings"
[Q]quit
Enter your selection:s
Saving environment to MMC ...
Writing to MMC (3) ... done
##### param setting #####
[1]ubuntu
[2]android
........
Tqimx6q Tutorial--Set the default boot system