Trying to update kernel patch from 105181-15 to 105181-39 (also tried
incrementing via 105181-17 which also failed) and after the update
fails I get the following error (/var/sadm/patch/105181-39/log):

"Package not patched:
PKG=FJSVhea
Original package not installed.
Package not patched:
PKG=SUNWcar.c
Original package not installed.
Package not patched:
PKG=SUNWcar.d
Original package not installed.
Package not patched:
PKG=SUNWcar.m
Original package not installed.
Package not patched:
PKG=SUNWcar.u1
Original package not installed.
Package not patched:
PKG=SUNWcar.us
Original package not installed.
Package not patched:
PKG=SUNWcg6.c
Original package not installed.
Package not patched:
PKG=SUNWcg6.d
Original package not installed.
Package not patched:
PKG=SUNWcg6.m
Original package not installed.
Package not patched:
PKG=SUNWcg6.us
Original package not installed.
Package not patched:
PKG=SUNWdrr.u1
Original package not installed.
Package not patched:
PKG=SUNWkvm.u1
Original package not installed.
Package not patched:
PKG=SUNWkvm.us
Original package not installed.

This appears to be an attempt to install the same architecture and
version of a package which is already installed.  This installation
will attempt to overwrite this package.

/usr/admin/amadeus/admin/patches/105181-39/SUNWarc/install/checkinstall:
/usr/admin/amadeus/admin/patches/105181-39/SUNWarc/install/checkin
stall: cannot open
pkgadd: ERROR: checkinstall script did not complete successfully
Dryrun complete.
No changes were made to the system."

I've tried updating the patching utilities in the hopes there was an
unmentioned requirement, but this patch failed as well (with a similar
log report).

The command I've used is: patchadd 105181-39, although I've also tried
using the installpatch script included in the patch update too.