Public bug reported:
The isc-dhcp-server package is not upgradable on a real machine (vs. a
chroot) in vivid or wily, because it installs two upstart jobs in the
usual debhelper way, but only one of them has a matching init script.
As a result, on a system with systemd as init, isc-dhcp-server will fail
to even unpack over a running system:
Preparing to unpack .../isc-dhcp-server_4.3.1-5ubuntu3_amd64.deb ...
initctl: Unable to connect to Upstart: Failed to connect to socket
/com/ubuntu/upstart: Connection refused
invoke-rc.d: unknown initscript, /etc/init.d/isc-dhcp-server6 not found.
dpkg: warning: subprocess old pre-removal script returned error exit status 100
dpkg: trying script from the new package instead ...
initctl: Unable to connect to Upstart: Failed to connect to socket
/com/ubuntu/upstart: Connection refused
invoke-rc.d: unknown initscript, /etc/init.d/isc-dhcp-server6 not found.
dpkg: error processing archive
/var/cache/apt/archives/isc-dhcp-server_4.3.1-5ubuntu3_amd64.deb (--unpack):
subprocess new pre-removal script returned error exit status 100
This is because both new and old packages include the following in the
prerm:
# Automatically added by dh_installinit
if [ -x "/etc/init.d/isc-dhcp-server6" ] || [ -e
"/etc/init/isc-dhcp-server6.conf" ]; then
invoke-rc.d isc-dhcp-server6 stop || exit $?
fi
# End automatically added section
This code will never succeed on a system running systemd.
It may be that debhelper's behavior here should be changed. However, as
we have two upstart jobs in the package for a reason, I think the more
important fix is to split the init script. This will then also require
some particular upgrade handling in the prerm since the prerm runs
before any new /etc/init.d/isc-dhcp-server6 script would be unpacked.
It's also worth noting that this problem was apparently not picked up by the
reports about packages missing init scripts; presumably because the
isc-dhcp-server has an init script, but not init scripts matching all of the
included upstart jobs.
https://people.canonical.com/~jhunt/systemd/packages-to-convert/2015-08-17.txt
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: isc-dhcp-server 4.3.1-5ubuntu2.2
ProcVersionSignature: Ubuntu 3.19.0-25.26-generic 3.19.8-ckt2
Uname: Linux 3.19.0-25-generic x86_64
ApportVersion: 2.18-0ubuntu6
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Aug 17 02:58:14 2015
InstallationDate: Installed on 2010-09-24 (1787 days ago)
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
SourcePackage: isc-dhcp
UpgradeStatus: Upgraded to wily on 2015-08-17 (0 days ago)
modified.conffile..etc.dhcp.dhcpd.conf: [modified]
mtime.conffile..etc.dhcp.dhcpd.conf: 2013-09-19T21:48:37.910820
** Affects: isc-dhcp (Ubuntu)
Importance: Critical
Assignee: Mathieu Trudel-Lapierre (mathieu-tl)
Status: Triaged
** Tags: amd64 apport-bug wily
** Changed in: isc-dhcp (Ubuntu)
Importance: Undecided => Critical
** Changed in: isc-dhcp (Ubuntu)
Status: New => Triaged
** Changed in: isc-dhcp (Ubuntu)
Assignee: (unassigned) => Mathieu Trudel-Lapierre (mathieu-tl)
** Changed in: isc-dhcp (Ubuntu)
Milestone: None => ubuntu-15.10
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu.
https://bugs.launchpad.net/bugs/1485396
Title:
impossible to upgrade package from vivid to wily because of maintainer
script reference to upstart job without matching init script
Status in isc-dhcp package in Ubuntu:
Triaged
Bug description:
The isc-dhcp-server package is not upgradable on a real machine (vs. a
chroot) in vivid or wily, because it installs two upstart jobs in the
usual debhelper way, but only one of them has a matching init script.
As a result, on a system with systemd as init, isc-dhcp-server will
fail to even unpack over a running system:
Preparing to unpack .../isc-dhcp-server_4.3.1-5ubuntu3_amd64.deb ...
initctl: Unable to connect to Upstart: Failed to connect to socket
/com/ubuntu/upstart: Connection refused
invoke-rc.d: unknown initscript, /etc/init.d/isc-dhcp-server6 not found.
dpkg: warning: subprocess old pre-removal script returned error exit status
100
dpkg: trying script from the new package instead ...
initctl: Unable to connect to Upstart: Failed to connect to socket
/com/ubuntu/upstart: Connection refused
invoke-rc.d: unknown initscript, /etc/init.d/isc-dhcp-server6 not found.
dpkg: error processing archive
/var/cache/apt/archives/isc-dhcp-server_4.3.1-5ubuntu3_amd64.deb (--unpack):
subprocess new pre-removal script returned error exit status 100
This is because both new and old packages include the following in the
prerm:
# Automatically added by dh_installinit
if [ -x "/etc/init.d/isc-dhcp-server6" ] || [ -e
"/etc/init/isc-dhcp-server6.conf" ]; then
invoke-rc.d isc-dhcp-server6 stop || exit $?
fi
# End automatically added section
This code will never succeed on a system running systemd.
It may be that debhelper's behavior here should be changed. However,
as we have two upstart jobs in the package for a reason, I think the
more important fix is to split the init script. This will then also
require some particular upgrade handling in the prerm since the prerm
runs before any new /etc/init.d/isc-dhcp-server6 script would be
unpacked.
It's also worth noting that this problem was apparently not picked up by the
reports about packages missing init scripts; presumably because the
isc-dhcp-server has an init script, but not init scripts matching all of the
included upstart jobs.
https://people.canonical.com/~jhunt/systemd/packages-to-convert/2015-08-17.txt
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: isc-dhcp-server 4.3.1-5ubuntu2.2
ProcVersionSignature: Ubuntu 3.19.0-25.26-generic 3.19.8-ckt2
Uname: Linux 3.19.0-25-generic x86_64
ApportVersion: 2.18-0ubuntu6
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Aug 17 02:58:14 2015
InstallationDate: Installed on 2010-09-24 (1787 days ago)
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64
(20100816.1)
SourcePackage: isc-dhcp
UpgradeStatus: Upgraded to wily on 2015-08-17 (0 days ago)
modified.conffile..etc.dhcp.dhcpd.conf: [modified]
mtime.conffile..etc.dhcp.dhcpd.conf: 2013-09-19T21:48:37.910820
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1485396/+subscriptions
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