4种启动Linux内核方法----mini2440

1:randisk方式启动内核.

Kernel command line: "initrd=0x32000000,0x200000 root=/dev/ram rw console=ttySAC0 mem=64M "

boot cmd:tftp 31000000 uImage ; tftp 32000000 ramdisk.gz; bootm 31000000

2:initramdisk 方式启动内核. //内核包含了文件系统.直接从nor读取内核即可启动.

Kernel command line: "console=ttySAC0 mem=64M"

boot cmd:tftp 31000000 uImage ; bootm 31000000

3:noinitrd 方式启动内核.

Kernel command line: noinitrd root=/dev/mtdblock3 init=/linuxrc console=ttySAC0 

boot cmd:bootm 40000  

4:nfs启动内核

Kernel command line:  "root=/dev/nfs nfsroot=192.168.0.33:/nfsroot/rootfs ip=192.168.0.47 rw console=ttySAC0 mem=64M"

boot cmd:tftp 31000000 uImage ; bootm 31000000