Hello, all,

I am trying to get my own Linux running on a powerpc dev board. I have a working kernel from the manufacturer of the board. I'm trying to replace the stock BSP/rootfs with one that I built from Yocto Linux. I've followed the instructions to build and install the Yocto root filesystem to an SD card and I think I've done that correctly. Linux is able to detect and mount the partition as root, however the system powers down and halts a few seconds after mounting. Below is a snippet from the output to the console.

There are a few seconds between the kernel memory message and the power down message.

I've tried setting the runlevel in inittab to both 3 and 1, but the same error happens. I've also tried putting echo messages in the rc scripts that should be called by init, but they don't appear in the console. I've also tried specifying the rootfs in the fstab by the partition's UUID and commenting out everything altogether in fstab but the issues remains.

Does anyone have any idea how I can debug this issue? I've tried passing "ignore_loglevel" and "debug" to my kernel command line but no extra messages are printed. I'm not sure where to proceed from here. Thanks.

P.S. Here is what I'm passing to the kernel command line:

Do you have valid /dev/console, /dev/null, /dev/zero, /sbin/init on this root fs ?

What's the next message seen when you use the stock BSP/rootfs - that will be a clue on what it's trying next.

Hello, linosaurusroot,

It turns out there was no /dev/console or /dev/zero in my filesystem. After I added these files, init started and I was able to progress farther into the boot process. Now the system is complaining about the fstab, but I think I should be able to troubleshoot this on my own.

As a reference, I created /dev/console and /dev/zero with these commands:

Thanks!