[Bug 1853013] Re: libvirtd looks for ebtables in the wrong location

[Guilherme G. Piccoli]

Hi @corey.bryant, I've just verified this in -proposed: with the regular
Train version (5.4.0-0ubuntu5~cloud0) the problem reproduces. When
upgraded to Train-proposed version (5.4.0-0ubuntu5~cloud0, problem is
fixed. Hence, marking as verified.

Cheers,


Guilherme

** Tags removed: verification-train-needed
** Tags added: verification-train-done

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https://bugs.launchpad.net/bugs/1853013

Title:
  libvirtd looks for ebtables in the wrong location

Status in Ubuntu Cloud Archive:
  Fix Committed
Status in Ubuntu Cloud Archive train series:
  Fix Committed
Status in Ubuntu Cloud Archive ussuri series:
  Fix Committed

Bug description:
  Using Train packages on a Bionic system makes libvirt unable to setup
  a network, as it looks for ebtables at /usr/sbin/ebtables, while the
  binary is installed as /sbin/ebtables. This is the logged error:

  libvirtd[4230]: libvirt version: 5.4.0, package: 0ubuntu5~cloud0 (Openstack Ubuntu Testing Bot <openstack-testing-bot at ubuntu.com> Thu, 05 Sep 2019 11:37:48 +0000)
  libvirtd[4230]: hostname: swirlix42
  libvirtd[4230]: direct firewall backend requested, but /usr/sbin/ebtables is not available: No such file or directory
  libvirtd[4230]: internal error: Failed to initialize a valid firewall backend
  libvirtd[4230]: internal error: Failed to initialize a valid firewall backend
  [...]

  $ ls -l /usr/sbin/ebtables
  ls: cannot access '/usr/sbin/ebtables': No such file or directory
  $ ls -l /sbin/ebtables
  -rwxr-xr-x 1 root root 10088 Jun 28  2018 /sbin/ebtables

  
  $ dpkg -l | grep libvirt
  ii  libvirt-bin                           4.0.0-1ubuntu8.13                      arm64        programs for the libvirt library
  ii  libvirt-clients                       5.4.0-0ubuntu5~cloud0                  arm64        Programs for the libvirt library
  ii  libvirt-daemon                        5.4.0-0ubuntu5~cloud0                  arm64        Virtualization daemon
  ii  libvirt-daemon-driver-storage-rbd     5.4.0-0ubuntu5~cloud0                  arm64        Virtualization daemon RBD storage driver
  ii  libvirt-daemon-system                 5.4.0-0ubuntu5~cloud0                  arm64        Libvirt daemon configuration files
  ii  libvirt0:arm64                        5.4.0-0ubuntu5~cloud0                  arm64        library for interfacing with different virtualization systems
  ii  python-libvirt                        5.0.0-1~cloud0                         arm64        libvirt Python bindings
  ii  uvtool-libvirt                        0~git140-0ubuntu1                      all          Library and tools for using Ubuntu Cloud Images with libvirt

  
  $ dpkg -l | grep ebtables
  ii  ebtables                              2.0.10.4-3.5ubuntu2.18.04.3            arm64        Ethernet bridge frame table administration

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