[Libguestfs] supermin (chroot+systemd.resolved) - network cannot be configured on Ubuntu

[Richard W.M. Jones]

On Mon, Apr 15, 2019 at 10:52:40AM +0100, Ioanna Alifieraki wrote:
> Hi,
> 
> I am facing the following bug while runnign guestfish on Ubuntu Bionic
> onward,
> where the network cannot be configured :
> https://bugs.launchpad.net/ubuntu/+source/supermin/+bug/1824236
> 
> The actual problem is the combination of (a) supermin and the fact that it
> does chroot
> and (b) a dhclient hook present in Bionic
> (/etc/dhcp/dhclient-eneter-hooks.d/resolved)

Does it work if you add this early on to appliance/init [1]:

rm -f /etc/dhcp/dhclient-eneter-hooks.d/resolved

There is no systemd in the appliance so anything that tries to run
systemd service is going to fail anyway.

Rich.

[1] https://github.com/libguestfs/libguestfs/blob/master/appliance/init

> that overwrites the make_resolv_conf function of dhclient_script with one
> that
> in the end restarts the systemd.resolved service.
> Being, however in chroot, the new make_resolv_conf function fails with
> "System has not been booted with systemd as init system (PID 1). Can't
> operate."
> and the network is left unconfigured.
> 
> Although there is a workaround for this, I am seeking for a better solution.
> I would like to ask you if this is the expected behaviour of supermin or
> something
> that needs fixing.
> 
> Thank you in advance.
> 
> Best,
> Jo

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Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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