[U-Boot-Users] Problems loading ramdisk

Michael Sprauve
2006-06-09T22:15:56Z

Hi,
I have a very simple and somewhat embarassing question
regarding u-boot and loading a ramdisk. I am trying to
boot my IXP425 board using a kernel and ramdisk that
has been flashed on the board. I have tried following
the many suggestions that I have found both on the
web, and inside the documentation but still have not
had any success. I know the kernel and ramdisk image
are good, since I used the same images for booting
from Redboot. Below is a snippet of my boot sequence,
including the error when trying to mount the
ramdisk(initrd)

Thanks,
Mike

******************************************************
bootm 50040000 50180000
## Booting image at 50040000 ...
Image Name: Snapgear Kernel
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1295376 Bytes = 1.2 MB
Load Address: 01600000
Entry Point: 01600000
Verifying Checksum ... OK
OK
## Loading Ramdisk Image at 50180000 ...
Image Name: Snapgear Ramdisk
Image Type: ARM Linux RAMDisk Image (gzip
compressed)
Data Size: 2264374 Bytes = 2.2 MB
Load Address: 00800000
Entry Point: 00800000
Verifying Checksum ... OK

Starting kernel ...

Uncompressing
Linux.............................................................
................................. done, booting the
kernel.
Linux version 2.6.13.5 (msprauve at Sebring) (gcc version
3.3.2) #34 Tue Jun 6 14:0
3:35 PDT 2006
CPU: XScale-IXP42x Family [690541f1] revision 1
(ARMv5TE)
Machine: Intel IXDP425 Development Platform
Memory policy: ECC disabled, Data cache writeback
CPU0: D VIVT undefined 5 cache
CPU0: I cache: 32768 bytes, associativity 32, 32 byte
lines, 32 sets
CPU0: D cache: 32768 bytes, associativity 32, 32 byte
lines, 32 sets
Built 1 zonelists
Kernel command line: console=ttyS0,115200
root=/dev/ram0 initrd=0x00800000,8M me
m=64M at 0x00000000 hdc=noprobe hdd=noprobe
.
.
.
RAMDISK: Couldn't find valid RAM disk image starting
at 0.
Kernel panic - not syncing: VFS: Unable to mount root
fs on unknown-block(1,0)

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