[U-Boot] Root-Filesystem ober NFS doesn't work... --> Kernel panic

[Michael Schmid]

Hi!

I'm trying to get root-filesystem over NFS running. I'm a bit confused about all the new stuff and I don't know where I shall  start  searching for the problem :-(

I have:
Board: Artila M501 board with AT91RM9200
U-Boot: 1.1.2
Linux: 2.6
Flash: 16MB
SDRAM: 64MB

My U-Boot configuration is:

***  START ***
baudrate=115200
ethaddr=00:13:48:00:77:b5
rootpath=/opt/arm
lel=1
initrd=0x20800000,8192000 ramdisk_size=15360 root=/dev/ram0 rw
loader=tftp 21000000 m501_64M.alf
mtdparts=phys_mapped_flash:128k(loader)ro,128k(reserved)ro,1408k(linux)ro,2560(ramdisk)ro,-(userdisk)
filesize=3A3
netmask=255.255.255.0
bootcmd=bootm 10040000 101a0000
kernel=tftp 21000000 M501K;erase 10040000 1019ffff;cp.b 21000000 10040000 $(filesize)
skernel=loadb 21000000;erase 10040000 1019ffff;cp.b 21000000 10040000 $(filesize)
ramdisk=tftp 21000000 M501R;erase 101a0000 1041ffff;cp.b 21000000 101a0000 $(filesize)
sramdisk=loadb 21000000;erase 101a0000 1041ffff;cp.b 21000000 101a0000 $(filesize)
ipaddr=192.168.2.196
bootdelay=1
bargs=setenv bootargs mem=64M console=$(console),115200 initrd=0x20800000,8192000 ramdisk_size=15360 root=/dev/ram0 rw mtdparts=phys_mapped_flash:128k(loader)ro,128k(env)ro,1408k(linux)ro,2560k(ramdisk)ro,-(userdisk)
serverip=192.168.2.40
console=ttyS0
gateway=192.168.2.1
bootargs=root=/dev/nfs rw nfsroot=192.168.2.40:/opt/arm ip=192.168.2.196:192.168.2.40:192.168.2.254:255.255.255.0:michael-laptop::off console=ttyS0,115200
bootm=10040000 - 101a0000
stdin=serial
stdout=serial
stderr=serial
*** END ***

If I start my Board, the kernel boots and it looks fine until I get a kernel panic --> See the attached textfile!


Do you have any hints what the problems might be. I'm pretty sure that the NFS-Server works fine, but I'm not sure 100% (How can I find out if it works? Any Idea?).

Thanks!
Michael



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Uncompressing Linux............................................................................................... done, booting the kernel.