Update Uboot  : Please press '0' or FP 'UP'
1. Update Kernel  : Please press '1' or FP 'DOWN'
2. Update RootFS  : Please press '2' or FP 'LEFT'
3. Exit menu     : please press '3' or ESC or FP 'MENU'
4. boot          : Please press '4' or 'B' or FP 'OK'
5. Reset         : Please press '5' or 'R' or FP 'POWER'
6. Loader        : Please press '6' or 'L' or FP 'RIGHT'

*******************************************

     Please enter your choice : ESC

      you had pressed ESC to exit update menu.

      you can recall this menu by using 'update' command.

MB618> nand
Usage:
nand    - NAND sub-system

MB618> help
?       - alias for 'help'
askenv  - get environment variables from stdin
autoscr - run script from memory
base    - print or set address offset
bdinfo  - print Board Info structure
boot    - boot default, i.e., run 'bootcmd'
bootd   - boot default, i.e., run 'bootcmd'
bootm   - boot application image from memory
bootp   - boot image via network using BootP/TFTP protocol
chpart  - change active partition
cmp     - memory compare
coninfo - print console devices and information
cp      - memory copy
crc32   - checksum calculation
dhcp    - invoke DHCP client to obtain IP/boot params
echo    - echo args to console
erase   - erase FLASH memory
exit    - exit script
ext2load- load binary file from a Ext2 filesystem
ext2ls  - list files in a directory (default /)
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls   - list files in a directory (default /)
flinfo  - print FLASH memory information
fsinfo  - print information about filesystems
fsload  - load binary file from a filesystem image
go      - start application at address 'addr'
help    - print online help
icrc32  - checksum calculation
iloop   - infinite loop on address range
imd     - i2c memory display
iminfo  - print header information for application image
imls    - list all images found in flash
imm     - i2c memory modify (auto-incrementing)
imw     - memory write (fill)
inm     - memory modify (constant address)
iprobe  - probe to discover valid I2C chip addresses
itest   - return true/false on integer compare
loadb   - load binary file over serial line (kermit mode)
loads   - load S-Record file over serial line
loady   - load binary file over serial line (ymodem mode)
loop    - infinite loop on address range
ls      - list files in a directory (default /)
md      - memory display
mii     - MII utility commands
mm      - memory modify (auto-incrementing)
mtdparts- define flash/nand partitions
mtest   - simple RAM test
mw      - memory write (fill)
nand    - NAND sub-system
nboot   - boot from NAND device
nfs     - boot image via network using NFS protocol
nm      - memory modify (constant address)
ping    - send ICMP ECHO_REQUEST to network host
pmb     - displays the contents of the PMB
printenv- print environment variables
protect - enable or disable FLASH write protection
rarpboot- boot image via network using RARP/TFTP protocol
reset   - Perform RESET of the CPU
run     - run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv  - set environment variables
sleep   - delay execution for some time
test    - minimal test like /bin/sh
tftpboot- boot image via network using TFTP protocol
update  - update uboot or kernel
updatekernel  - update kernel from the path of env_setings 'kernelnfspath'
updaterootfs  - update rootfs from the path of env_setings 'rootfsnfspath'
updateuboot  - update uboot from the path of env_setings 'ubootnfspath'
usb     - USB sub-system
usbboot - boot from USB device
version - print monitor version
MB618>