[Bug 979720] Re: isc-dhcp-server blocks upgrades if it can not be started

[Thomas Schweikle]

@#7:Jamie: I added these to my custom rules, to make sure named/dhcp work as expected.
The main problem was that dhcpd was installed and configured, but starting it was denied. The upgrade process wanted to start dhcpd, but since starting was denied it couldn't do it and exhausted an error hindering apt to finish configuration. In tune the upgrade process failed. Changing dhcpd to start at system start temporarily solved the error – but: the upgrade process should not depend on services are enabled to start at system start or being enabled to start at all!

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https://bugs.launchpad.net/bugs/979720

Title:
  isc-dhcp-server blocks upgrades if it can not be started

Status in “isc-dhcp” package in Ubuntu:
  Incomplete

Bug description:
  If isc-dhcp-server can not be started it blocks further upgrades, leaving the system in an inconsistent state.
  isc-dhcp-server upgrade shall instead ignore such an error like "could not start" and not stop upgrades on such errors.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: isc-dhcp-server 4.1.ESV-R4-0ubuntu5
  ProcVersionSignature: Ubuntu 3.2.0-22.35-virtual 3.2.14
  Uname: Linux 3.2.0-22-virtual i686
  ApportVersion: 2.0.1-0ubuntu2
  Architecture: i386
  Date: Thu Apr 12 11:29:42 2012
  DhServerLeases:
   
  InstallationMedia: Ubuntu-Server 10.10 "Maverick Meerkat" - Release i386 (20101007)
  ProcEnviron:
   TERM=screen-bce
   PATH=(custom, user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: isc-dhcp
  UpgradeStatus: Upgraded to precise on 2012-04-01 (11 days ago)
  mtime.conffile..etc.dhcp.dhcpd.conf: 2012-01-06T11:56:06
  mtime.conffile..etc.init.isc.dhcp.server.conf: 2012-04-12T11:28:55.507365

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