According to the bzr history in lp:ubuntu/wily/isc-dhcp, this patch is related to bug #974284:
committer: Stéphane Graber <stgra...@ubuntu.com> branch nick: isc-dhcp timestamp: Wed 2012-09-12 17:30:23 -0400 message: Set onetry = 0 early enough to actually work. (LP: #974284) And Scott, you filed that bug; it seems the current behavior is exactly what you requested? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu. https://bugs.launchpad.net/bugs/1633619 Title: dhclient -1 exits 0 when no lease found Status in isc-dhcp package in Ubuntu: Confirmed Bug description: I've tried this in containers of xenial, trusty and yakkety. i've created a lxc network that does not have dhcp4. See https://github.com/lxc/lxd/issues/2481 for some info on how to do that. Then, I launch an instance: $ lxc launch ubuntu-daily:xenial --profile=sm-test-profile2 x1 % killall dhclient % dhclient -r eth0 % dhclient -1 -v eth0 Internet Systems Consortium DHCP Client 4.3.3 Copyright 2004-2015 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/eth0/00:16:3e:b8:e6:70 Sending on LPF/eth0/00:16:3e:b8:e6:70 Sending on Socket/fallback DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3 (xid=0xc08cb53c) DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4 (xid=0xc08cb53c) DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 9 (xid=0xc08cb53c) DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 19 (xid=0xc08cb53c) DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7 (xid=0xc08cb53c) DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 12 (xid=0xc08cb53c) .. No DHCPOFFERS received. No working leases in persistent database - sleeping. % echo $? 0 % ps axw | grep dhcl 356 ? Ss 0:00 dhclient -1 -v eth0 the man page says of the '-1' option: -1 Try to get a lease once. On failure exit with code 2. In DHCPv6 this sets the maximum duration of the initial exchange to timeout (from dhclient.conf with a default of sixty seconds). ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: isc-dhcp-client 4.3.3-5ubuntu15 ProcVersionSignature: Ubuntu 4.8.0-22.24-generic 4.8.0 Uname: Linux 4.8.0-22-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 CurrentDesktop: Unity Date: Fri Oct 14 16:59:45 2016 DhclientLeases: EcryptfsInUse: Yes InstallationDate: Installed on 2015-07-23 (449 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150722.1) SourcePackage: isc-dhcp UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1633619/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
