anyone know what this means? Cron <root at deedra> apt-get upgrade

[Deedra Waters]

As you can see this runs every day as schedualed... but this morning the
following ended up with errors.... I'm curious as to why,  if when I ran
it manually it didn't give me any errors at all..


---------- Forwarded message ----------
Date: Sat, 29 Dec 2001 03:05:02 -0500
From: Cron Daemon <root at deedra>
To: root at deedra
Subject: Cron <root at deedra> apt-get upgrade -y

Reading Package Lists...
Building Dependency Tree...
2 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0B/189kB of archives. After unpacking 36.9kB will be freed.
dpkg: `ldconfig' not found on PATH.
dpkg: `start-stop-daemon' not found on PATH.
dpkg: `install-info' not found on PATH.
dpkg: `update-rc.d' not found on PATH.
dpkg: 4 expected program(s) not found on PATH.
NB: root's PATH should usually contain /usr/local/sbin, /usr/sbin and /sbin.
E: Sub-process /usr/bin/dpkg returned an error code (2)