ubuntu apt-get install all fiald?some errors with rsyslog

Question

The user `syslog' is already a member of `adm'.
Skipping profile in /etc/apparmor.d/disable: usr.sbin.rsyslogd
/usr/sbin/invoke-rc.d: 1: /usr/sbin/invoke-rc.d: /sbin/runlevel: not found
start: Job failed to start
invoke-rc.d: initscript rsyslog, action "restart" failed.
dpkg: error processing package rsyslog (--configure):
 subprocess installed post-installation script returned error exit status 1
Setting up ppp (2.4.5-5.1ubuntu2.2) ...
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
insserv: Service gdm has to be enabled to start service pppd-dns
insserv: exiting now!
update-rc.d: error: insserv rejected the script header
dpkg: error processing package ppp (--configure):
 subprocess installed post-installation script returned error exit status 1
Setting up liblua5.2-0:amd64 (5.2.3-1) ...
Setting up librpmio3 (4.11.1-3ubuntu0.1) ...
Setting up debugedit (4.11.1-3ubuntu0.1) ...
Setting up librpm3 (4.11.1-3ubuntu0.1) ...
Setting up librpmbuild3 (4.11.1-3ubuntu0.1) ...
Setting up librpmsign1 (4.11.1-3ubuntu0.1) ...
Setting up rpm-common (4.11.1-3ubuntu0.1) ...
Setting up rpm2cpio (4.11.1-3ubuntu0.1) ...
Setting up rpm (4.11.1-3ubuntu0.1) ...
Processing triggers for libc-bin (2.21-0ubuntu4) ...
Errors were encountered while processing:
 rsyslog
 ppp
E: Sub-process /usr/bin/dpkg returned an error code (1)

this the error meesage. At first, I just want to reinstall mysql. when I service mysql restart , ubuntu give me a unkonw instance error. so, I reinstall it, then, I can't install it again. seems like apt-get install was not worked.

Answer 1

Stop the rsyslog first

 sudo service rsyslog stop
 sudo systemctl stop rsyslog.service
 sudo systemctl disable rsyslog.service

Then Try:

 sudo apt-get -f install