ubuntu-server daily iso - Upon installation, /etc/network/interfaces not populated with correct network interface names, so networking fails to start

[Thomas Ward]

Hello.

I've installed today from the Ubuntu Server Daily ISO. During the installer process, we get the system identifying network interfaces with the traditional unpredictable naming algorithms of eth##. After installation, the system uses systemd to identify network interface names, per http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/

In the Virtual Environment i'm using, on VMware Workstation x64 with two virtual NICs, I end up with ens33 and ens34 according to the installed system.

However, the installer populated the /etc/network/interfaces configuration with eth0 and eth1. As a result, networking fails to start up after a reboot, and either /etc/network/interfaces needs edited to match the correct identifiers and a reboot issued, or one has to do `sudo dhclient` to update the IP address. For static addressing networks, of course, you still need to revise the interfaces file.

This is a serious issue, as upon installation via the ubuntu-server ISO, networking will fail to come up, leaving users to scratch their head expecting instant access.

Due to an uncertainty in the severity, I've set it to High given that last point. Please feel free to change it. Note that this is filed against both systemd and netcfg as I am not sure which one needs to be fixed.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: systemd 222-1ubuntu1
ProcVersionSignature: Ubuntu 4.0.0-4.6-generic 4.0.7
Uname: Linux 4.0.0-4-generic x86_64
ApportVersion: 2.17.3-0ubuntu4
Architecture: amd64
Date: Fri Jul 10 15:15:17 2015
InstallationDate: Installed on 2015-07-10 (0 days ago)
InstallationMedia: Ubuntu-Server 15.10 "Wily Werewolf" - Alpha amd64 (20150709)
MachineType: VMware, Inc. VMware Virtual Platform
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.0.0-4-generic root=UUID=34413d00-2883-4593-a395-7c6b16e3cc6e ro
SourcePackage: systemd
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/31/2013
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 6.00
dmi.board.name: 440BX Desktop Reference Platform
dmi.board.vendor: Intel Corporation
dmi.board.version: None
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd07/31/2013:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:
dmi.product.name: VMware Virtual Platform
dmi.product.version: None
dmi.sys.vendor: VMware, Inc.

[Launchpad Janitor (janitor)]

This bug was fixed in the package debian-installer - 20101020ubuntu387

---------------
debian-installer (20101020ubuntu387) wily; urgency=medium

  * No-change rebuild to pull in the latest udev-udeb (LP: #1473542)

 -- Adam Conrad <email address hidden> Fri, 10 Jul 2015 14:12:32 -0600

[Launchpad Janitor (janitor)]

This bug was fixed in the package systemd - 222-1ubuntu3

---------------
systemd (222-1ubuntu3) wily; urgency=medium

  * debian/udev-udeb.install: Fix the FTBFS created by the previous upload.

systemd (222-1ubuntu2) wily; urgency=medium

  * debian/udev-udeb.install: Install new bits for net.ifnames (LP: #1473542)
  * debian/extra/initramfs-tools/hooks/udev: Do the same for initramfs-tools.

 -- Adam Conrad <email address hidden> Fri, 10 Jul 2015 16:40:19 -0600

[Martin Pitt (pitti)]

I was about to say, missing ifnames in udeb. Thanks Adam! I'll commit the fixes to Debian.