dracut error netbooting Power7

[Jimi Xenidis]

On Mar 19, 2012, at 11:13 AM, Bryson Lee wrote:

> Hi,
> 
> I'm trying to do a network-based install of Fedora 16 on an IBM PS710 (8231-E2B).  I have existing Cobbler infrastructure that we're using to provision these boxes with Fedora 12, so I'd hoped to be able to give F16 a quick spin to see if we can start thinking about moving forward.
> 
> The DVD iso appeared to import cleanly as a Cobbler distro, and the box successfully TFTP's yaboot, vmlinux, and the initrd and _starts_ to boot the kernel, but Dracut issues a " FATAL: No or empty root= argument" and then panics the kernel.  I've included the message output below.
> 
> Any suggestions?  The only place I can think of to put a root= argument is in the Cobbler-generated yaboot config file, but I don't know what to specify there...

hey bryson, I went in this rat hole myself,
  <http://lists.fedoraproject.org/pipermail/ppc/2011-November/001450.html>
so if you figure it out let me know.
IIRC, there seem to be a bunch of file systems here.
1) the initrd
2) the DVD file system
3) the squashfs on the DVD

I think if you use "root=/dev/nfs", that will get you a little further to trying to find the suashfs, but I'm not sure its the right direction.

I also asked on IRC and got some good information, but mostly that it has not been tested and would be hard (my words).

-jx


> 
> Thanks,
> 
> -Bryson
> 
> Dracut and kernel-panic messages...
> 
> [    3.844732] dracut: dracut-013-18.fc16
> [    3.864001] dracut: FATAL: No or empty root= argument
> [    3.864013] dracut: Refusing to continue
> 
> 
> [    3.864103] dracut Warning: Signal caught!
> dracut Warning: Signal caught!
> [    3.864182] dracut Warning: dracut: FATAL: No or empty root= argument
> dracut Warning: dracut: FATAL: No or empty root= argument
> [    3.864227] dracut Warning: dracut: Refusing to continue
> dracut Warning: dracut: Refusing to continue
> 
> [    3.864398] Kernel panic - not syncing: Attempted to kill init!
> [    3.864402] Call Trace:
> [    3.864409] [c0000003c8903a10] [c000000000017e14] .show_stack+0xb4/0x1d0 (unreliable)
> [    3.864421] [c0000003c8903ad0] [c00000000081791c] .dump_stack+0x28/0x3c
> [    3.864427] [c0000003c8903b50] [c000000000819244] .panic+0xac/0x228
> [    3.864433] [c0000003c8903bf0] [c0000000000e0fec] .do_exit+0x91c/0x960
> [    3.864438] [c0000003c8903d00] [c0000000000e1390] .do_group_exit+0x60/0x100
> [    3.864444] [c0000003c8903da0] [c0000000000e145c] .SyS_exit_group+0x2c/0x30
> [    3.864450] [c0000003c8903e30] [c000000000009800] syscall_exit+0x0/0x40
> [    3.865702] Rebooting in 180 seconds..
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