I'd like to also confirm this bug, which we've been experiencing for the past few months since we first setup an 18.04 image for our deployment portal.
Initially I thought the cause MAY have been from us using ifupdown (we have to as our vCenter instance hasn't been upgraded to 6.5.x or 6.7 where Ubuntu 18.04 with NetPlan is officially supported). I've checked logs and it seems that *every time* apt upgrade is ran and one of the systemd components are upgraded, the network dies. You can do "ip addr" and see the interface has no addresses assigned. A simple restart of networking and the IPs come back. This literally just happened this morning to two of our 18.04 LTS systems and the systemd packages that were updated were: libsystemd0 systemd-sysv libpam-systemd systemd libnss-systemd The rest of the packages that were updated: grub-common grub2-common udev grub-pc apache2-data libudev1 grub-pc-bin apache2-bin libunistring2 apache2 apache2-utils I also had another report on Feb 20th, and it also involved the following updates: Start-Date: 2019-02-20 04:41:09 Commandline: /usr/bin/apt-get -o quiet=1 upgrade -y -o APT::Get::Show-Upgraded=true Upgrade: libsystemd0:amd64 (237-3ubuntu10.12, 237-3ubuntu10.13), udev:amd64 (237-3ubuntu10.12, 237-3ubuntu10.13), libudev1:amd64 (237-3ubuntu10.12, 237-3ubuntu10.13), systemd-sysv:amd64 (237-3ubuntu10.12, 237-3ubuntu10.13), libpam-systemd:amd64 (237-3ubuntu10.12, 237-3ubuntu10.13), systemd:amd64 (237-3ubuntu10.12, 237-3ubuntu10.13), libnss-systemd:amd64 (237-3ubuntu10.12, 237-3ubuntu10.13), pciutils:amd64 (1:3.5.2-1ubuntu1, 1:3.5.2-1ubuntu1.1), libpci3:amd64 (1:3.5.2-1ubuntu1, 1:3.5.2-1ubuntu1.1) End-Date: 2019-02-20 04:42:19 The interesting thing is, looking at my notes, in my case it MAY BE from the ifupdown which should "just work", as this 2nd VM also has that setup. I looked and it updated this morning the same as the first machine but I didn't have a report of it being offline. Now on this 2nd machine, I did also do an "apt remove netplan.io" as a "hope this solves the issue and it's some conflict or issue between netplan.io and ifupdown OR a conflict between systemd and netplan.io and since there's no report of it being down and I just verified networking is fine.... is it something between systemd and netplan? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1782709 Title: Updating systemd kills network on bionic Status in linux package in Ubuntu: Incomplete Status in systemd package in Ubuntu: Confirmed Bug description: I do have an ubuntu bionic server installation without a graphical interface. The server has two active network adapters, both connected to the internet. One is used for outgoing internet traffic, the other for incoming. The incoming adapter lives on a public network segment (something like 88.236.133.104/29). I do have multiple servers within this segment. Typically, I update the server regularly, meaning: * ssh to the incoming adapter: ssh 88.236.133.108 * apt-get update * apt-get upgrade * apt-get dist-upgrade * apt-get clean * reboot It used to work ok. BUT: Today, "apt-get upgrade" seem to take really long when updating systemd. After a could of minutes, I realized that the ssh session became inactive. I couldn't type into it, I had to abort it via ~. . * ssh from the internet to the incoming adapter was not working anymore - ssh 88.236.133.108 * ssh via another server within the public network segment worked * ssh 88.236.133.106 -> ssh 88.236.133.108 * After running "netplan apply" everything was fine again Here my netplan configuration (I changed the ip addresses): network: version: 2 renderer: networkd ethernets: eno1: dhcp4: yes eno2: dhcp4: no addresses: [88.236.133.108/29] #gateway4: 88.236.133.105 routes: - to: 0.0.0.0/0 via: 88.236.133.105 table: 120 routing-policy: - from: 88.236.133.108/32 table: 120 - to: 88.236.133.108/32 table: 120 Unfortunately, I don't have the console output avalable anymore. Shall I provide additional info? Best regards, Uli --- ProblemType: Bug AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Jul 20 08:10 seq crw-rw---- 1 root audio 116, 33 Jul 20 08:10 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-07-14 (5 days ago) InstallationMedia: Ubuntu-Server 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' MachineType: IBM IBM System x -[794582G]- Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 mgadrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-23-generic root=UUID=a41b3020-8359-4fe2-8fc3-1c97011f71ec ro ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-23-generic N/A linux-backports-modules-4.15.0-23-generic N/A linux-firmware 1.173.1 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' Tags: bionic Uname: Linux 4.15.0-23-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 05/07/2014 dmi.bios.vendor: IBM Corp. dmi.bios.version: -[D6E162AUS-1.20]- dmi.board.asset.tag: (none) dmi.board.name: 00D4062 dmi.board.vendor: IBM dmi.board.version: (none) dmi.chassis.asset.tag: none dmi.chassis.type: 23 dmi.chassis.vendor: IBM dmi.chassis.version: none dmi.modalias: dmi:bvnIBMCorp.:bvr-[D6E162AUS-1.20]-:bd05/07/2014:svnIBM:pnIBMSystemx-[794582G]-:pvr00:rvnIBM:rn00D4062:rvr(none):cvnIBM:ct23:cvrnone: dmi.product.family: System x dmi.product.name: IBM System x -[794582G]- dmi.product.version: 00 dmi.sys.vendor: IBM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1782709/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
