Xu Yang wrote:
Hi everyone,
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.
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?
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
--
Bill Davidsen <[email protected]>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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