Update 8.5 to 8.6 error

[f.artese]

Hi
i have thi s problem in autoupdate from plesk 8.5 to 8.6:

Autoinstaller 3.3.2 (build at 2008-07-10 09:28 svn rev. 0) started at (timezone CET) Tue Aug 5 22:39:19 2008 Command line args: /usr/local/psa/admin/bin/autoinstaller --enable-xml-output --source-type=plesk --target=/root/psa --select-release-id=PLESK_8_6_0 --notify-email=f.artese@b-link.it --install-component=base --install-component=sbm --install-component=java --install-component=psa-firewall --install-component=psa-vpn --install-component=psa-fileserver --install-component=watchdog --install-component=cs-gs --install-component=battlefield --install-component=spamassassin

Try to find rcfile...
Autoinstaller rcfile not found.
Checking hostname is sucessfull.
Opsys detected as: os_name=Linux os_vendor=CentOS version=4.4 arch=i686 environment=~empty Final opsys (with overriding) is: os_name=Linux os_vendor=CentOS version=4.4 arch=i686 environment=~empty Downloading the file products.inf3: 100% done.
........
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Downloading the file PSA_8.6.0/update-rpm-CentOS-4.2-i386/samba-common-3.0.25b-1.el4_6.5.i386.rpm: skipped because of md5 checksum match.
Downloading the file PSA_8.6.0/update-rpm-CentOS-4.2-i386/samba-client-3.0.25b-1.el4_6.5.i386.rpm: skipped because of md5 checksum match.
Starting installation of packages
Warning: unresolved requires '/usr/bin/lp' from redhat-lsb-3.0-8.EL.i386
Warning: unresolved requires '/usr/bin/lpr' from redhat-lsb-3.0-8.EL.i386
Warning: unresolved requires '/usr/sbin/sendmail' from redhat-lsb-3.0-8.EL.i386
prepareInstallStep: resolve results for package(s):
(s) system_installed_psa-imp-4.1.6-cos4.build86080722.02.noarch.rpm
Installing the package psa-mimp-1.0.2-cos4.build86080722.02.noarch
package psa-mimp-1.0.2-cos4.build86080722.02 is already installed
ERROR: Unable to install the requested packages because of package dependency problems.
Warning! Not all packages were installed.
Please check if your system services are operable.
Please, contact product technical support.

Thanks