On xenial, deployed with maas 2.3.0. Node with two network interfaces: the
first one (ens3) set to "auto" in maas, and the second one (ens8) left as
"unconfigured" in MAAS:
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
group default qlen 1000
link/ether 52:54:00:58:04:57 brd ff:ff:ff:ff:ff:ff
inet 10.0.5.10/24 brd 10.0.5.255 scope global ens3
valid_lft forever preferred_lft forever
inet6 fe80::5054:ff:fe58:457/64 scope link
valid_lft forever preferred_lft forever
3: ens8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
group default qlen 1000
link/ether 52:54:00:66:6c:1c brd ff:ff:ff:ff:ff:ff
inet6 fe80::5054:ff:fe66:6c1c/64 scope link
valid_lft forever preferred_lft forever
With ubuntu-fan 0.12.8~16.04.1 installed:
root@04-57:~# ifdown -a; ifup -a
/usr/sbin/fanctl: 41: /usr/sbin/fanctl: arithmetic expression: expecting
primary: " (32-)/4 "
run-parts: /etc/network/if-up.d/ubuntu-fan exited with return code 2
Failed to bring up ens3.
That also leaves the networking system in a bit of an inconsistent state:
root@04-57:~# ifdown ens3
ifdown: interface ens3 not configured
Bug confirmed.
I chose to reboot now, and then install the updated ubuntu-fan package from
proposed:
SKIP - package not available yet - will continue sometime later
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https://bugs.launchpad.net/bugs/1737640
Title:
/usr/sbin/fanctl: arithmetic expression: expecting primary |
unconfigured interfaces cause ifup failures
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