> Could it be that something about keeping daemons started during ifup
running be accidentally dropped?
Not that I know of, and in my wily VMs dhclient runs happily.
I don't know whether ifupdown has some useful debugging facilities. I
tried adding /usr/bin/strace -fvvs1024 -o /run/ifup.trace to
/etc/init.d/networking, but it doesn't give much information (in
particular, it doesn't end up calling dhclient). Do you get anything
useful if you set VERBOSE=yes in /etc/default/networking and reboot?
(Please attach journal again)
** Package changed: ubuntu => ifupdown (Ubuntu)
** Changed in: ifupdown (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1466790
Title:
dhclient does not remain running on boot
Status in ifupdown package in Ubuntu:
Incomplete
Bug description:
Not sure whether this is a systemd or ifupdown issue. I just happened to
notice today for a Wily VM (set up from server iso) that I failed to get a DNS
resolution for a VM I started earlier the day. DNS updates in my case are
related to DHCP updates. And on the DHCP/DNS server I noticed that the IP
address had been removed at some point. Looking at the VM, I find no dhclient
being started. When I manually run ifdown and ifup on the interface this does
happen. But not whenever I boot.
Curious about this I also checked a Vivid VM (also server install) and this
looks the same. However for Vivid this seems fixed in the latest versions.
Network config in /etc/network/interfaces:
auto eth0
iface eth0 inet dhcp
Expected result:
dhclient running for eth0
Actual result after boot:
No dhclient process is running.
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