Boot stop at "KDB: current backend: ddb"

Peter Grehan grehan at freebsd.org
Sat Jul 16 04:16:44 GMT 2005


> Yes, I did, I forgot send my experience to this list. =P
> 
> I entered Open Firmware and typed "mac-boot", and it send me to the
> Yellow Dog Linux boot prompt (I was using YDL), so I typed "C" and the
> boot process started normaly... But it stoped at the time that I'm
> showing now, near this two messages...

  That's a bit strange: looks like yaboot was trying to load the FreeBSD 
kernel.

> How can I escape to the freeBSD loader prompt? 

  You'll want to boot the loader from the cd. It should load the kernel,
and then give you a timeout period where you can hit the space bar to 
break into the loader instead of booting the kernel i.e.

0 > boot cd:,\boot\loader cd:0

Loading ELF
Consoles: Open Firmware console

FreeBSD/Open Firmware/PowerPC bootstrap loader, Revision 0.1
(root at macmini.ptree32.com.au, Wed Jul 13 13:54:48 UTC 2005)
Memory: 655360KB
Booted from: /pci at f2000000/mac-io at 17/ata-3 at 20000/disk at 0

Loading /boot/defaults/loader.conf
/boot/kernel/kernel text=0x32fc18 data=0x3113c+0x94554 
syms=[0x4+0x3be10+0x4+0x4a6d9]

Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel] in 7 seconds...

Type '?' for a list of commands, 'help' for more detailed help
OK

> I've tested the OpenBSD macppc and it booted normaly, but I think that
> I fucked up some important native MAC partitions, like Apple_Bootstrap
> partition and now I think that I nedd rebuild this with the MacOSX
> CDROM, will freeBSD need those partitions?

  No, FreeBSD will install on *any* partition type, but you need to keep 
at least one HFS+ partition to install the loader onto so that 
OpenFirmware can read it in and boot it.

later,

Peter.


More information about the freebsd-ppc mailing list