vivi中的ramdisk fs

                                                                             
                                                                               

vivi> part show
mtdpart info. (5 partitions)
name              offset        size        flag
------------------------------------------------
vivi            : 0x00000000    0x00020000     0  128k
param           : 0x00020000    0x00010000     0   64k
kernel          : 0x00030000    0x001c0000     0    1M+768k
root            : 0x00200000    0x00400000     0    4M
usr             : 0x00600000    0x03a00000     0   58M


vivi>  param set linux_cmd_line "console=ttySAC0 initrd=0x30800000,0x440000 roo"Change linux command line to "console=ttySAC0 initrd=0x30800000,0x440000 root=/"vivi>
vivi> load ram 0x30008000 0x001c0000 t         // load kernel image to ram

vivi>  load ram 0x30800000  0x00400000 t        //load ramdisk image to ram

vi> boot ram

Copy linux kernel from 0x00030000 to 0x30008000, size = 0x001c0000 ... done
zImage magic = 0x016f2818
Setup linux parameters at 0x30000100
linux command line is: "console=ttySAC0 initrd=0x30800000,0x440000 root=/dev/ra"MACH_TYPE = 193
NOW, Booting Linux......
Uncompressing Linux.............................................................Linux version 2.6.14 (root@hujunlinux) (gcc version 3.4.1) #29 Sun Feb 4 17:32:7CPU: ARM920Tid(wb) [41129200] revision 0 (ARMv4T)
Machine: SMDK2410


NET: Registered protocol family 1
RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem).
Mounted devfs on /dev
Freeing init memory: 112K
                                                                               
Please press Enter to activate this console.

顺便熟悉了vivi的命令的使用。呵呵， uboot能做的vivi也能做阿。

1：说明kernel ,fs 都在ram 上用boot ram 可以成功加载

vivi> load ram  0x30008000  0x001c0000  t
vivi>load  flash root  t            //load  cramfs  image to flash

vivi> param show
Number of parameters: 19
name                    :          hex             integer
-------------------------------------------------------------
mach_type               :       000000c1                  193
media_type              :       00000003                    3
boot_mem_base           :       30000000            805306368
baudrate                :       0001c200               115200
xmodem_one_nak          :       00000000                    0
xmodem_initial_timeout  :       000493e0               300000
xmodem_timeout          :       000f4240              1000000
ymodem_initial_timeout  :       0016e360              1500000
boot_delay              :       00300000              3145728
os                      :       LINUX
display                 :       VGA 640X480
ip                      :       59.69.74.199
host                    :       59.69.74.87
gw                      :       59.69.74.1
mask                    :       255.255.255.0
wincesource             :       00000000                    0
wincedeploy             :       00000001                    1
mac                     :       00:00:c0:ff:ee:08
wince part name: wince
Linux command line: noinitrd root=31:03  init=/linuxrc console=ttySAC0
vivi> param set linux_cmd_line "noinitrd root=/dev/mtdblock/3  init=/linuxrc co"Change linux command line to "noinitrd root=/dev/mtdblock/3  init=/linuxrc cons"vivi> boot ram
Copy linux kernel from 0x00030000 to 0x30008000, size = 0x001c0000 ... done
zImage magic = 0x016f2818

VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "mtdblock/3" or unknown-block(2,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
 
2：说明kernel  在ram, fs(cramfs) 在flash上用 boot ram 不行。

 vivi>load flash kernel t
 

vivi> load ram 0x30800000  0x00400000  t

vivi> param show
Number of parameters: 19
name                    :          hex             integer
-------------------------------------------------------------
mach_type               :       000000c1                  193
media_type              :       00000003                    3
boot_mem_base           :       30000000            805306368
baudrate                :       0001c200               115200
xmodem_one_nak          :       00000000                    0
xmodem_initial_timeout  :       000493e0               300000
xmodem_timeout          :       000f4240              1000000
ymodem_initial_timeout  :       0016e360              1500000
boot_delay              :       00300000              3145728
os                      :       LINUX
display                 :       VGA 640X480
ip                      :       59.69.74.199
host                    :       59.69.74.87
gw                      :       59.69.74.1
mask                    :       255.255.255.0
wincesource             :       00000000                    0
wincedeploy             :       00000001                    1
mac                     :       00:00:c0:ff:ee:08
wince part name: wince
Linux command line: noinitrd root=31:03  init=/linuxrc console=ttySAC0
vivi>  param set linux_cmd_line "console=ttySAC0 initrd=0x30800000,0x440000 roo"Change linux command line to "console=ttySAC0 initrd=0x30800000,0x440000 root=/"vivi> boot

RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem).
Mounted devfs on /dev
Freeing init memory: 112K
                                                                               
Please press Enter to activate this console.
                                                                               
                                                                               
BusyBox v1.2.1 (2007.01.13-23:04+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.


3：说明kernel 在flash上， fs 在ram上， 用boot 命令可以加载成功。