SD已经烧写了Superboot，并且从光盘中拷贝了整个IMAGES到SD卡上，安装4.0.3能成功，但是2.3.1不成功，
安装2.3.1时步骤： S2开关切换至SD卡启动，启动电源，滴滴滴响3声，
sd卡里image里的截图：
sd卡里image里的截图：
串口输出的数据是：
Board type: 2
NAND Low-level formating...
NAND Low-level formatted...
Superboot-210
Ver: 1.3(20120319)
CPU: S5PV210 1GHz
RAM: 512MB
NAND: 1GB(SLC) ID:ECD35195
Touch Device: no 1-wire
LCD Type: S70(Manu)
Installing OS 'ANDROID'
OS 'ANDROID' Installed
FriendlyARM.ini文件内容如下：
#This line cannot be removed. by FriendlyARM(
www.arm9.net)
CheckOneButton=No
Action = Install
OS = Android
LCD-Mode = No
LCD-Type = S70
LowFormat = Yes
VerifyNandWrite = No
CheckCRC32=No
StatusType = Beeper | LED
################### Android 2.3.1 ####################
#Android-BootLoader = Superboot210.bin
#Android-Kernel = Android2.3.1/zImage
#Android-CommandLine = root=/dev/mtdblock4 console=ttySAC0,115200 init=/linuxrc androidboot.console=s3c2410_serial0 skipcali=yes
#Android-RootFs-InstallImage = Android2.3.1/rootfs_android.img
同样的方法安装4.0.3是成功的，串口输出：
Board type: 2
NAND Low-level formating...
NAND Low-level formatted...
Superboot-210
Ver: 1.3(20120319)
CPU: S5PV210 1GHz
RAM: 512MB
NAND: 1GB(SLC) ID:ECD35195
Touch Device: no 1-wire
LCD Type: S70(Manu)
Installing OS 'ANDROID'
Installing bootloader...
file: /images/Superboot210.bin: 528 KB(540672 Byte)
Installing bootloader succeed
Installing kernel...
file: /images/Android/zImage: 3 MB(4138260 Byte)
Installing kernel succeed
Installing yaffs2-image...
file: /images/Android/rootfs_android.img: 178 MB(186947904 Byte)
Installing yaffs2-image succeed
OS 'ANDROID' Installed
请问是什么原因2.3.1装不成功
