[Bug 430224] Re: init: support chroots

[Dashamir Hoxha]

Just for the record, when I install Ubuntu Trusty (14.04) as a chroot
inside Ubuntu Trusty (14.04) this problem does not happen. The problem
here is with starting mysql inside the chroot: `service mysql start`. It
tries to start the mysql of the main (host) system.

The easy workaround for this (which was not so easy for me to find) is to start mysql like this: `/etc/init.d/mysql start`
I hope this is useful to someone, since "systemd" may need some time to become working and stable. By the way, I tried to test it on 14.04 and it didn't work.

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https://bugs.launchpad.net/bugs/430224

Title:
  init: support chroots

Status in Release Notes for Ubuntu:
  Fix Released
Status in Upstart:
  Fix Released
Status in “upstart” package in Ubuntu:
  Fix Released
Status in “upstart” source package in Karmic:
  Won't Fix

Bug description:
  Binary package hint: upstart

  $ sudo chroot /media/karmic dpkg --configure -a
  Setting up cups (1.4.1-1) ...
  update-rc.d: warning: /etc/init.d/cups missing LSB information
  update-rc.d: see <http://wiki.debian.org/LSBInitScripts>
  Rather than invoking init scripts through /etc/init.d, use the service(8)
  utility, e.g. service cups start

  Since the script you are attempting to invoke has been converted to an
  Upstart job, you may also use the start(8) utility, e.g. start cups
  start: Unable to connect to Upstart: Failed to connect to socket /com/ubuntu/upstart: Connection refused
  invoke-rc.d: initscript cups, action "start" failed.
  dpkg: error processing cups (--configure):
   subprocess installed post-installation script returned error exit status 1
  Errors were encountered while processing:
   cups

  
  WORKAROUND: Create an executable /media/karmic/usr/sbin/policy-rc.d with this in it:
  #!/bin/sh
  exit 101

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