Hi everyone,Looking at the information below, did the program which loaded the filesystem into RAM decompress it? It noted that it was compressed so I would assume so, but I am unfamiliar with ARM tools, so I ask the question. Also, should the boot device be "/dev/ram0" rather than "dev/ram0" or is that correct for your system?
I want to use ramdisk to boot my filesystem, as I can't use NFS and harddisk.
I have load the ramdisk into the ram memory (start address :0x4000000)
and in the boot options I specified : root =dev/ram0 initrd=0x4000000
but the kernel said it can not find any file system on it.
Here is the information I can supply :
U-Boot 1.2.0 (Aug 31 2007 - 20:54:55)
*** Auto-detects ethernet chip ***
DRAM: 0 kB
## Unknown FLASH on Bank 1 - Size = 0x00000000 = 0 MB
Flash: 0 kB
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
## Booting image at 00007fc0 ...
Image Name: Linux-2.6.19-arm2
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 740372 Bytes = 723 kB
Load Address: 00008000
Entry Point: 00008000
OK
## Loading Ramdisk Image at 04000000 ...
Image Name: ramdisc
Image Type: ARM Linux RAMDisk Image (gzip compressed)
Data Size: 12582962 Bytes = 12 MB
Load Address: 04000000
Entry Point: 04000000
Starting kernel ...
.........................................................................................
RAMDISK driver initialized: 16 RAM disks of 10240K size 1024 blocksize
<6>loop: loaded (max 8 devices)
<6>mice: PS/2 mouse device common for all mice
<6>VFP support v0.3: implementor 41 architecture 1 part 20 variant b rev 3
No filesystem could mount root, tried: ext2 cramfs vfat
<0>Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(1,0)
Who can give me some hints ? or point me some direction to handle this.
I appreciate this very much.
regards,
Yang