[debhelper-devel] [Bug 1312836] Re: [systemd] dh_installinit does not create /etc/rc*.d/S??foo if there is an /etc/init/foo.conf

[Martin Pitt]

Adding a debhelper task, to check if we can drop that "autoscripts
/postinst-init*: Only call update-rc.d when there's no upstart job"
delta. Whether we can just do that depends on this question: If there is
an /etc/rc?.d/S??foo and an /etc/init/foo.conf, does upstart only run
the upstart job and the init.d script gets "masked" by that
automatically (1)? Or would upstart run both (2)?

If (1), we can drop the dh_installinit delta, get the rc?.d symlinks
back, and will have init.d scripts as properly working fallbacks for
packages which don't have a systemd unit. This will also unbreak
insserv, as it will then be able to properly figure out dependencies
(Debian stopped supporting the non-insserv "static priorities" mode, so
sooner or later we'll have to do this).

If (2), how difficult is it to implement this masking dynamically in
upstart instead of statically in dh_installinit? This would then need an
upstart task.

** Changed in: debhelper (Ubuntu)
       Status: New => Triaged

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Title:
  [systemd] dh_installinit does not create /etc/rc*.d/S??foo if there is
  an /etc/init/foo.conf

Status in “debhelper” package in Ubuntu:
  Triaged
Status in “ifupdown” package in Ubuntu:
  Triaged

Bug description:
  I had no networking when I booted up with systemd just now.

  laney at raleigh> cat /etc/resolv.conf
  # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
  #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN

  laney at raleigh> ifconfig
  lo        Link encap:Local Loopback  
            inet addr:127.0.0.1  Mask:255.0.0.0
            inet6 addr: ::1/128 Scope:Host
            UP LOOPBACK RUNNING  MTU:65536  Metric:1
            RX packets:572 errors:0 dropped:0 overruns:0 frame:0
            TX packets:572 errors:0 dropped:0 overruns:0 carrier:0
            collisions:0 txqueuelen:0 
            RX bytes:46364 (46.3 KB)  TX bytes:46364 (46.3 KB)

  laney at raleigh> more /etc/network/interfaces
  # interfaces(5) file used by ifup(8) and ifdown(8)
  auto lo
  iface lo inet loopback

  auto eth0
  iface eth0 inet manual

  auto br0
  iface br0 inet dhcp
      bridge_ports eth0
      bridge_stp off
      bridge_fd 0
      bridge_maxwait 0

  laney at raleigh> sudo ifup eth0 br0
  ifup: failed to open lockfile /run/network/.ifstate.lock: No such file or directory

  Then copying from /etc/init/networking.conf's pre-start

  laney at raleigh> sudo mkdir -p /run/network
  laney at raleigh> sudo ifup -a
  Internet Systems Consortium DHCP Client 4.2.4
  Copyright 2004-2012 Internet Systems Consortium.
  All rights reserved.
  For info, please visit https://www.isc.org/software/dhcp/

  Listening on LPF/br0/30:85:a9:9d:63:f6
  Sending on   LPF/br0/30:85:a9:9d:63:f6
  Sending on   Socket/fallback
  DHCPDISCOVER on br0 to 255.255.255.255 port 67 interval 3 (xid=0x1b02ce25)
  DHCPDISCOVER on br0 to 255.255.255.255 port 67 interval 7 (xid=0x1b02ce25)
  DHCPREQUEST of 192.168.1.136 on br0 to 255.255.255.255 port 67 (xid=0x1b02ce25)
  DHCPOFFER of 192.168.1.136 from 192.168.1.1
  DHCPACK of 192.168.1.136 from 192.168.1.1
  bound to 192.168.1.136 -- renewal in 39350 seconds.
  laney at raleigh> cat /etc/resolv.conf
  # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
  #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
  nameserver 192.168.1.1

  I feel like there's probably an existing systemd-ish way of doing
  this.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ifupdown 0.7.47.2ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Apr 25 18:01:25 2014
  InstallationDate: Installed on 2012-10-07 (564 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Beta amd64 (20121007)
  SourcePackage: ifupdown
  UpgradeStatus: Upgraded to trusty on 2013-05-07 (353 days ago)

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