[Bug 1202203] Re: Connection requests to saucy server VMs from a hosts fail after fresh preseeded VM installs
Launchpad Bug Tracker
1202203 at bugs.launchpad.net
Thu Jul 18 23:20:52 UTC 2013
This bug was fixed in the package isc-dhcp - 4.2.4-7ubuntu4
---------------
isc-dhcp (4.2.4-7ubuntu4) saucy; urgency=low
* debian/apparmor-profile.dhclient: allow 'm' of /bin/bash (LP: #1202203)
-- Jamie Strandboge <jamie at ubuntu.com> Thu, 18 Jul 2013 16:59:08 -0500
** Changed in: isc-dhcp (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1202203
Title:
Connection requests to saucy server VMs from a hosts fail after fresh
preseeded VM installs
Status in “isc-dhcp” package in Ubuntu:
Fix Released
Bug description:
Reporting a new bug since the fix for bug 1197484, as suspected, did
not fix the issue. I am reporting again against isc-dhcp but the issue
appeared for the first time when Linux version 3.10.0-2-generic was
first used. Also, using utah this is easily reproducible irrespective
of the host ( confirmed on precise and raring hosts) and appears to
only happen during the first boot after the installation. I say this
because, I tried to reboot an impacted VM a number of times (after
sudo ifdown eth0 and sudo ifup eth0) but could not reproduce the
issue. Logging into an impacted system, running ifconfig does not
list an ipv4 address for eth0, when the issue occurs.
Summary of the issue:
The ssh/ ping requests from the host to the client VMs of preseeded saucy server installations fail on first reboot after fresh installations of 20130703 images onwards. The ping requests to the IP address allocated to the VMs during the installations fail with 'Destination Host Unreachable'. There does not appear to be anything wrong during installations.
The VMs use libvirt/KVM and using bridged interface. This issue happens not always but most of the time. With isc-dhcp - 4.2.4-7ubuntu3 we do NOT see the 'dhclient: execve (/sbin/dhclient-script, ...): Permission denied' in the boot log but still see
Jul 17 03:59:55 utah-11601-saucy-server-i386 kernel: [ 13.514969]
type=1400 audit(1374047995.545:11): apparmor="DENIED"
operation="file_mmap" parent=488 profile="/sbin/dhclient"
name="/bin/bash" pid=591 comm="dhclient-script" requested_mask="m"
denied_mask="m" fsuid=0 ouid=0
The installer syslog and boot log of one of the latest failures are
attached.
==============================================
How to reproduce:
1. Install utah using
sudo apt-add-repository -y ppa:utah/stable
sudo apt-get update
sudo apt-get install utah
2. Now run the installation test using
sudo -u utah -i run_utah_tests.py -i /path/to/saucy-server-amd64.iso -p lp:ubuntu-test-cases/server/preseeds/mail-server.preseed lp:ubuntu-test-cases/server/runlists/mail-server.run -x /etc/utah/bridged-network-vm.xml
3. Now it could be seen that the the connection to the VMs from the
host after the installation fails.
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