root@server:~# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be upgraded:
psa psa-autoinstaller
2 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 2518kB/28.2MB of archives.
After this operation, 954kB of additional disk space will be used.
Do you want to continue [Y/n]? y
WARNING: The following packages cannot be authenticated!
psa psa-autoinstaller
Install these packages without verification [y/N]? y
Get:1
http://autoinstall.plesk.com hardy/all psa-autoinstaller 3.3.2-080710.09 [2518kB]
Fetched 2518kB in 2s (893kB/s)
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LC_CTYPE = "",
LANG = "en_US.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
(Reading database ... 186705 files and directories currently installed.)
Preparing to replace psa 8.6.0-ubuntu6.06.build86080722.01 (using .../psa_8.6.0-ubuntu8.04.build86080722.00_i386.deb) ...
===> Checking for the necessary system accounts
Checking for the system groups and users necessary for MySQL...
Checking for the group 'mysql'...
Group 'mysql' already exists
Checking for the user 'mysql'...
User 'mysql' already exists
Checking for the system groups and users necessary for admin server...
Checking for the group 'psaadm'...
Group 'psaadm' already exists
Checking for the user 'psaadm'...
User 'psaadm' already exists
Checking for the group 'psaserv'...
Group 'psaserv' already exists
Checking for the group 'psaserv'...
Trying to add supplementary group 'psaserv' for user 'www-data'... already there
Checking for the group 'psaserv'...
Trying to add supplementary group 'psaserv' for user 'psaftp'... already there
Checking for the group 'psaserv'...
Trying to add supplementary group 'psaserv' for user 'psaadm'... already there
Checking for the group 'psacln'...
Group 'psacln' already exists
Checking for the system groups and users necessary for Apache...
Checking for the group 'www-data'...
Group 'www-data' already exists
Checking for the user 'www-data'...
User 'www-data' already exists
Unable to upgrade. You have 8.6.0 version installed,
but upgrader is incompatible with this version.
To install new Plesk copy, please move '/opt/psa'
to another place manually.
dpkg: error processing /var/cache/apt/archives/psa_8.6.0-ubuntu8.04.build86080722.00_i386.deb (--unpack):
subprocess pre-installation script returned error exit status 1
Preparing to replace psa-autoinstaller 3.3.2-080710.09 (using .../psa-autoinstaller_3.3.2-080710.09_i386.deb) ...
Unpacking replacement psa-autoinstaller ...
Errors were encountered while processing:
/var/cache/apt/archives/psa_8.6.0-ubuntu8.04.build86080722.00_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)