I read posts here: http://plugcomputer.org/plugforum/index.php?topic=2002 suggests there was a hardware change sometime in the last 6 months. The solution being upgrade the kernel to 2.6.32 which will include a patch to support the new revision.
So here is what I did:
PlugPBX:~#apt-cache search linux-image
PlugPBX:~#apt-get install linux-image-2.6.32-5-kirkwood
Selecting previously deselected package linux-image-2.6.32-5-kirkwood.
Unpacking linux-image-2.6.32-5-kirkwood (from .../linux-image-2.6.32-5-kirkwood_2.6.32-15_armel.deb) ...
Selecting previously deselected package firmware-linux-free.
Unpacking firmware-linux-free (from .../firmware-linux-free_2.6.32-15_all.deb) ...
Processing triggers for man-db ...
Setting up libapt-pkg-perl (0.1.24+b1) ...
Setting up libuuid-perl (0.02-3+b1) ...
Setting up linux-base (2.6.32-15) ...
Setting up linux-image-2.6.32-5-kirkwood (2.6.32-15) ...
update-initramfs: Generating /boot/initrd.img-2.6.32-5-kirkwood
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 2.6.32-5-kirkwood /boot/vmlinuz-2.6.32-5-kirkwood
Setting up firmware-linux-free (2.6.32-15) ...
PlugPBX:~# uname -r
When the system comes back up....
Linux PlugPBX 2.6.30-2-kirkwood #1 Sun Sep 27 22:57:55 UTC 2009 armv5tel
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Fri Jul 16 23:29:23 2010 from 192.168.100.100
PlugPBX:~# uname -r
So it appears the kernel upgrade installed without a hitch, but it is still booting the old kernel.
There is no lilo or grub, so where am I supposed to tell it to boot the new kernel or is that supposed to be automatic?
After installing from apt-get, issue the following:
#shutdown -r now
When it comes up, you no longer have garbage on boot and you have the new kernel.