jumping to kernel entry at 0xc0048000 error on boot cd for spacr64

[Mario Beltran]

Hello,

I want to install freebsd 6.0 for my Sun enterprise 220R but I cant.

I downloaded two iso files from:
ftp://ftp.freebsd.org/pub/FreeBSD/releases/sparc64/ISO-IMAGES/6.0/6.0-RELEASE-sparc64-disc1.iso
and
ftp://ftp.freebsd.org/pub/FreeBSD/releases/sparc64/ISO-IMAGES/6.0/6.0-RELEASE-sparc64-bootonly.iso

On booth cds the installation stops in the same step. The complete 
message is:


Sun Enterprise 220R (ultrasparc - II 450 MHz), keyboard present
OpenBoot 3.23 1024 MB memory installed, serail #12050420.
Ethernet address8:0:21:b7:df:d2, Host ID: 80b7dff2

Initializing memory
ok boot cdrom
boot device: /pci at 1f,4000/scsi at 3/disk at 6,0:f file and argrs:

 >>FreeBSD/sparc64 boot block
boot path: /pci at 1f,4000/scsi at 3/disk at 6,0:f
boot loader: /boot/loader

consoles: open firmware console

boot path set to /pci at 1f,4000/scsi at 3/disk at 6,0:a

FreeBSD/sparc64 bootstrap loader, revision 1.0
(root at s-dallas.cse.buffalo.edu, wed nov 2 09:45:36 UTC 2005)
bootpath="/pci at 1f,4000/scsi at 3/disk at 6,0:a"
loading /boot/defaults/loader.conf
/boot/kernel/kernel data=0x456608+0x5bfa8 syms=[0x8+0x60bd0+0x8+0x511b9]
/
hit [enter] to boot inmediately, or any key for command prompt.
booting [/boot/kernel/kernel]...
nothing to autoload yet.
jumping to kernel entry at 0xc0048000

And that is all the system never pass from jumping to kernel entry at 
0xc0048000

Is this an issue?
Is this a bug?

What should I do for solve this problem and install freebsd 6.0 in this 
machine?

Thanks in advance :)

Mario