When I use: sudo dpkg --configure -a,

I get this:

Setting up rsyslog (5.8.6-1ubuntu9.1) ...

dpkg: error processing rsyslog (--configure):

 subprocess installed post-installation script returned error exit status 10

Errors were encountered while processing:

 rsyslog

Then I type: sudo apt-get -f install

and the response is

Reading package lists... Done

Building dependency tree       

Reading state information... Done

The following packages were automatically installed and are no longer required:

  calligra-l10n-engb cdparanoia k3b k3b-data k3b-i18n kde-l10n-engb

  kde-l10n-fa kde-l10n-zhcn kdevelop-l10n kdevelop-php-docs-l10n

  kdevelop-php-l10n language-pack-kde-en language-pack-kde-fa libflac++6

  libk3b6 libkcddb4

Use 'apt-get autoremove' to remove them.

0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

1 not fully installed or removed.

After this operation, 0 B of additional disk space will be used.

Setting up rsyslog (5.8.6-1ubuntu9.1) ...

dpkg: error processing rsyslog (--configure):

 subprocess installed post-installation script returned error exit status 10

No apport report written because MaxReports is reached already

Errors were encountered while processing:

 rsyslog

E: Sub-process /usr/bin/dpkg returned an error code (1)

Finally, I use: sudo sh -x /var/lib/dpkg/info/rsyslog.postinst configure

and the response is

+ set -e

+ user_conf=/etc/rsyslog.d/50-default.conf

+ default_conf=/usr/share/rsyslog/50-default.conf

+ ucf --three-way --debconf-ok /usr/share/rsyslog/50-default.conf /etc/rsyslog.d/50-default.conf

Then I try sudo ucf --verbose --debug=2 --three-way --debconf-ok /{usr/share/rsyslog,etc/rsyslog.d}/50-default.conf

and get:

ucf: The Debug value is 2

ucf: The new file is /usr/share/rsyslog/50-default.conf

ucf: The Destination file is /etc/rsyslog.d/50-default.conf

ucf: The Source directory is /usr/share/rsyslog

ucf: The State directory is /var/lib/ucf

The hash file exists

egrep [[:space:]]/etc/rsyslog.d/50-default.conf$ /var/lib/ucf/hashfile

80de10a8b9f13365de8cc4bbf8efec5e /etc/rsyslog.d/50-default.conf

The new start file is `/usr/share/rsyslog/50-default.conf'

The destination is `/etc/rsyslog.d/50-default.conf' (`/etc/rsyslog.d/50

-default.conf')

The history is kept under '/usr/share/rsyslog'

The file may be cached at '/var/lib/ucf/cache/:etc:rsyslog.d:50-default.conf'

The destination file exists, and has md5sum:

80de10a8b9f13365de8cc4bbf8efec5e /etc/rsyslog.d/50-default.conf

The old md5sum exists, and is:

80de10a8b9f13365de8cc4bbf8efec5e

The new file exists, and has md5sum:

80de10a8b9f13365de8cc4bbf8efec5e /usr/share/rsyslog/50-default.conf

Historical md5sums are not available

ucf: The Debug value is 2

ucf: The new file is /usr/share/rsyslog/50-default.conf

ucf: The Destination file is /etc/rsyslog.d/50-default.conf

ucf: The Source directory is /usr/share/rsyslog

ucf: The State directory is /var/lib/ucf

The hash file exists

Then I type: sudo apt-get upgrade -f

and get this:

Reading package lists... Done

Building dependency tree

Reading state information... Done

0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

1 not fully installed or removed.

After this operation, 0 B of additional disk space will be used.

Do you want to continue [Y/n]?

Setting up rsyslog (5.8.6-1ubuntu9.1) ...

dpkg: error processing rsyslog (--configure):

subprocess installed post-installation script returned error exit status 10

Errors were encountered while processing:

rsyslog

E: Sub-process /usr/bin/dpkg returned an error code (1)