[Bug 1824236] Re: supermin/liguestfs fails to configure network

Ioanna Alifieraki 1824236 at bugs.launchpad.net
Thu May 30 11:45:40 UTC 2019


Patch merged upstream :
https://github.com/libguestfs/libguestfs/commit/2bb6be333e6347d3f18856627d8ad8e50b8e5427

Preparing new debdiffs.

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Title:
  supermin/liguestfs fails to configure network

Status in libguestfs package in Ubuntu:
  In Progress
Status in supermin package in Ubuntu:
  In Progress
Status in libguestfs source package in Bionic:
  In Progress
Status in supermin source package in Bionic:
  New
Status in libguestfs source package in Cosmic:
  In Progress
Status in supermin source package in Cosmic:
  New
Status in libguestfs source package in Disco:
  In Progress
Status in supermin source package in Disco:
  New

Bug description:
  Description

  supermin cannot configure network on Bionic onward.

  This bug is a combination of supermin package and 
  /etc/dhcp/dhclient-enter-hooks.d/resolved script from systemd,
  present on Bionic onward.
  When supermin creates the appliance does chroot and executes its init script.
  If networking is enabled init will call dhclient sript to configure the network.

  On Bionic onward the make_resolv_conf function of dhclient_script is overwritten
  in /etc/dhcp/dhclient-eneter-hooks.d/resolved which before exiting restarts
  the systemd.resolved service. 
  However, this happening in chroot environment fails with 
  "System has not been booted with systemd as init system (PID 1). Can't operate."
  and network is left unconfigured.

  
  Test Case 

  $ sudo guestfish -a xenial-server-cloudimg-amd64-disk1.img --network -v << EOF 
  run 
  mount /dev/sda1 / 
  command 'apt update' 
  EOF 

  libguestfs: launch: program=guestfish
  libguestfs: launch: version=1.36.13
  libguestfs: launch: backend registered: unix
  libguestfs: launch: backend registered: uml
  libguestfs: launch: backend registered: libvirt
  ...
  supermin: deleting initramfs files
  supermin: chroot
  Starting /init script ...
  ...
  + dhclient --version
  + dhclient eth0
  System has not been booted with systemd as init system (PID 1). Can't operate.
  ...
  commandrvf: apt update

  WARNING: apt does not have a stable CLI interface. Use with caution in
  scripts.

  W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/InRelease  Temporary failure resolving 'archive.ubuntu.com'
  W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-updates/InRelease  Temporary failure resolving 'archive.ubuntu.com'
  W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-backports/InRelease  Temporary failure resolving 'archive.ubuntu.com'
  W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/InRelease  Temporary failure resolving 'security.ubuntu.com'
  W: Some index files failed to download. They have been ignored, or old ones used instead.
  ...

  
  Workaround

  1) Assume that libguestfs is installed, if not : 
  $ sudo apt-get install libguestfs-tools 

  2) Move the base.tar.gz to a temp dir, extract and remove tarball 
  $ sudo mv /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/base.tar.gz ~/tempdir/ 
  $ cd ~/tempdir 
  $ sudo tar -xzvf base.tar.gz 
  $ sudo rm base.tar.gz 

  3) Remove the etc/dhcp/dhclient-enter-hooks.d/resolved file 
  $ sudo rm etc/dhcp/dhclient-enter-hooks.d/resolved 

  4) Create tarball again 
  $ sudo tar -czvf base.tar.gz etc 

  5) Move it back to installation dir 
  $ sudo mv base.tar.gz /usr/lib/x86_64-linux-gnu/guestfs/supermin.d/ 

  6) Clean cache 
  $ sudo rm -rf /var/tmp/.guestfs*

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