[Bug 1810798] Re: package squid 3.5.12-1ubuntu7.6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 4

[Andreas Hasenack]

Thanks for filing this bug in Ubuntu.

This is the error reported in the logs:
Installing new version of config file /etc/init.d/squid ...
Failed to restart squid.service: Transaction is destructive.
See system logs and 'systemctl status squid.service' for details.
invoke-rc.d: initscript squid, action "restart" failed.
● squid.service - LSB: Squid HTTP Proxy version 3.x
   Loaded: loaded (/etc/init.d/squid; bad; vendor preset: enabled)
   Active: deactivating (stop) since Mon 2019-01-07 19:33:50 IST; 22s ago
     Docs: man:systemd-sysv-generator(8)
  Control: 917 (squid)
   CGroup: /system.slice/squid.service
           ├─  692 /usr/sbin/squid -YC -f /etc/squid/squid.conf
           ├─  694 (squid-1) -YC -f /etc/squid/squid.conf
           ├─28344 (logfile-daemon) /var/log/squid/access.log
           └─control
             ├─ 917 /bin/sh /etc/init.d/squid stop
             └─1477 sleep 5

Jan 07 19:29:48 raghvendra-Inspiron-7560 systemd[1]: Reloading LSB: Squid HTT...
Jan 07 19:29:48 raghvendra-Inspiron-7560 squid[28329]:  * Reloading Squid HTT...
Jan 07 19:29:48 raghvendra-Inspiron-7560 squid[28329]:    ...done.
Jan 07 19:29:48 raghvendra-Inspiron-7560 systemd[1]: Reloaded LSB: Squid HTTP...
Jan 07 19:33:50 raghvendra-Inspiron-7560 systemd[1]: Stopping LSB: Squid HTTP...
Jan 07 19:33:51 raghvendra-Inspiron-7560 squid[917]:  * Stopping Squid HTTP P...
Jan 07 19:33:54 raghvendra-Inspiron-7560 squid[917]:  *  Waiting...
Jan 07 19:34:02 raghvendra-Inspiron-7560 squid[917]:  * ...
Jan 07 19:34:07 raghvendra-Inspiron-7560 squid[917]:  * ...
Jan 07 19:34:12 raghvendra-Inspiron-7560 squid[917]:  * ...
Hint: Some lines were ellipsized, use -l to show in full.
dpkg: error processing package squid (--configure):
 subprocess installed post-installation script returned error exit status 4

Unfortunately there aren't many details about what went wrong, only that
it looks like stopping squid took too long.

Could you please attach:
- /var/log/squid/cache.log
- output of "systemctl -l status squid"

And also just retry the operation:
sudo apt update
sudo apt -f install

Thanks


** Changed in: squid3 (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1810798

Title:
  package squid 3.5.12-1ubuntu7.6 failed to install/upgrade: subprocess
  installed post-installation script returned error exit status 4

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