Hi, Bela, I'm not sure what the problem is, but I can offer a few comments that might be helpful...
> On May 8, 2018, at 22:50, Bela Dixit <[email protected]> wrote: > > U-Boot 2011.06-rc2-00000-gd422dc0-dirty (Nov 08 2012 - 16:04:14) > > CPU: AMCC PowerPC 440EPx Rev. A at 533.333 MHz (PLB=133 OPB=66 EBC=66) > No Security/Kasumi support > Bootstrap Option C - Boot ROM Location EBC (16 bits) > 32 kB I-Cache 32 kB D-Cache > Board: ROACH2 > I2C: ready > DRAM: 512 MiB > Flash: 128 MiB > *** Warning - bad CRC, using default environment Does the working ROACH2 also give this "bad CRC, using default environment" message? > Linux/PowerPC load: console=ttyS0,115200 root=/dev/nfs > rootpath=192.168.100.1:/srv/roach_boot/etch ip=dhcp These kernel command line options seem good. > [ 1.626566] IP-Config: Failed to open eth0 > [ 1.630764] IP-Config: No network devices available > [ 1.636493] Root-NFS: no NFS server address > [ 1.640794] VFS: Unable to mount root fs via NFS, trying floppy. > [ 1.647713] VFS: Cannot open root device "nfs" or unknown-block(2,0): > error -6 > [ 1.655011] Please append a correct "root=" boot option; here are the > available partitions: > [ 1.663380] 1f00 4096 mtdblock0 (driver?) > [ 1.668452] 1f01 65536 mtdblock1 (driver?) > [ 1.673513] 1f02 49152 mtdblock2 (driver?) > [ 1.678577] 1f03 11264 mtdblock3 (driver?) > [ 1.683640] 1f04 256 mtdblock4 (driver?) > [ 1.688710] 1f05 512 mtdblock5 (driver?) > [ 1.693773] Kernel panic - not syncing: VFS: Unable to mount root fs on > unknown-block(2,0) It's weird that it can't mount the root filesystem. You could check the "/etc/exports" file in the NFS server to make sure it is exporting the root filesystem to this ROACH2's IP address. I also wonder whether the working ROACH2 also has these MTD partitions. Maybe they are confusing the boot process? The "Failed to open eth0" message also seems weird. I suspect comparing with the console output from the working ROACH2 could offer some more clues. HTH, Dave -- You received this message because you are subscribed to the Google Groups "[email protected]" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected].

