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Message #63737
[Bug 1432829] Re: resolvconf not updated correctly for interfaces configured in initramfs
-- adt --
Note, my adt runs so far have failed each time (and after 30+ minutes)
The last last failure due to guest running out of space, so changed to 20G
(default 4)
# per http://packaging.ubuntu.com/html/auto-pkg-test.html#executing-the-test
sudo addgroup kvm
sudo adduser $(id --user --name) kvm
sudo apt-get install -qy autopkgtest qemu-system qemu-utils python-distro-info genisoimage
adt-buildvm-ubuntu-cloud -v --disk-size 20G --release=vivid
adt-run systemd_219-4ubuntu7~ppa2.dsc --- qemu ~/adt-vivid-amd64-cloud.img
time adt-run --output-dir=test-output.d \
--summary=test-output.d/sm-summary.log \
--debug systemd_219-4ubuntu7~ppa2.dsc --- \
qemu --cpus=4 --ram-size=8192 \
~/adt-vivid-amd64-cloud.img 2>&1 | tee run.log
-- physical server system booted (cloud-init installed) --
system has 2 nics, both could dhcp. only one configured to auto.
system booted fine.
both 'systemctl status ifup@eth0' and 'ifup@eth1' show 'success'
EN had:
auto eth0
iface eth0 inet dhcp
iface eth1 inet dhcp
-- cloud image on openstack --
- boot system, rm -Rf /var/lib/cloud /var/log/cloud*,
apt-add-repository ppa:smoser -y && apt-get update && apt-get dist-upgrade
sudo reboot
system booted fine
systemctl status ifup@eth0
-- laptop booting test --
- boot system with eth0 connected, but not listed in /etc/network/interfaces
- [P] network-manager should bring up network interface on login
- [P] ifup@eth0 service should succeed but do nothing
$ systemctl status ifup@eth0
● ifup@eth0.service - ifup for eth0
Loaded: loaded (/lib/systemd/system/ifup@.service; static; vendor preset: enabled)
Active: active (exited) since Thu 2015-03-19 09:41:21 EDT; 3min 26s ago
Process: 557 ExecStart=/lib/systemd/systemd-ifupdown-helper start %I (code=exited, status=0/SUCCESS)
Main PID: 557 (code=exited, status=0/SUCCESS)
CGroup: /system.slice/system-ifup.slice/ifup@eth0.service
Mar 19 09:41:21 brickies systemd[1]: Starting ifup for eth0...
Mar 19 09:41:21 brickies systemd[1]: Started ifup for eth0.
- boot system with 'iface eth0 inet dhcp' in ENI but not auto
- [P] service should show success but no network brought up
- [P] network-manager should not bring up network:
$ systemctl status ifup@eth0
● ifup@eth0.service - ifup for eth0
Loaded: loaded (/lib/systemd/system/ifup@.service; static; vendor preset: enabled)
Active: active (exited) since Thu 2015-03-19 10:01:16 EDT; 1min 6s ago
Process: 531 ExecStart=/lib/systemd/systemd-ifupdown-helper start %I (code=exited, status=0/SUCCESS)
Main PID: 531 (code=exited, status=0/SUCCESS)
CGroup: /system.slice/system-ifup.slice/ifup@eth0.service
Mar 19 10:01:16 brickies systemd[1]: Starting ifup for eth0...
Mar 19 10:01:16 brickies systemd[1]: Started ifup for eth0.
- boot system with 'iface eth0 inet dhcp' in ENI + 'auto eth0'
- [P] service should show success and network brought up
- [P] network-manager should not bring up network:
$ systemctl status ifup@eth0
● ifup@eth0.service - ifup for eth0
Loaded: loaded (/lib/systemd/system/ifup@.service; static; vendor preset: enabled)
Active: active (exited) since Thu 2015-03-19 10:04:06 EDT; 55s ago
Process: 555 ExecStart=/lib/systemd/systemd-ifupdown-helper start %I (code=exited, status=0/SUCCESS)
Main PID: 555 (code=exited, status=0/SUCCESS)
CGroup: /system.slice/system-ifup.slice/ifup@eth0.service
└─1059 dhclient -1 -v -pf /run/dhclient.eth0.pid -lf /var/lib/dhcp/dhclient.eth0.leases eth0
Mar 19 10:04:06 brickies systemd-ifupdown-helper[555]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 12 (xid=0x53375ff7)
Mar 19 10:04:06 brickies dhclient[616]: DHCPREQUEST of 192.168.1.102 on eth0 to 255.255.255.255 port 67 (xid=0x53375ff7)
Mar 19 10:04:06 brickies dhclient[616]: DHCPOFFER of 192.168.1.102 from 192.168.1.1
Mar 19 10:04:06 brickies systemd-ifupdown-helper[555]: DHCPREQUEST of 192.168.1.102 on eth0 to 255.255.255.255 port 67 (xid=0x53375ff7)
Mar 19 10:04:06 brickies systemd-ifupdown-helper[555]: DHCPOFFER of 192.168.1.102 from 192.168.1.1
Mar 19 10:04:06 brickies dhclient[616]: DHCPACK of 192.168.1.102 from 192.168.1.1
Mar 19 10:04:06 brickies systemd-ifupdown-helper[555]: DHCPACK of 192.168.1.102 from 192.168.1.1
Mar 19 10:04:06 brickies dhclient[616]: bound to 192.168.1.102 -- renewal in 2147483648 seconds.
Mar 19 10:04:06 brickies systemd-ifupdown-helper[555]: bound to 192.168.1.102 -- renewal in 2147483648 seconds.
Mar 19 10:04:06 brickies systemd[1]: Started ifup for eth0.
- boot system with 'iface eth0 inet dchp' in ENI + auto + unplugged-network
- [P] service should fail, boot should be slow
uptime on login was in the ~300 second realm (359.19 recorded)
- [P] network-manager should not bring up network
Note: i did have a default bad route after bringing up network manager connection to wifi.
I do not believe this was related to systemd changes but more likely a result of lxc
or some other software trying to bring up a default route (lxc is installed and lxcbr0 up).
$ pastebinit /var/log/kern.log
http://paste.ubuntu.com/10627794/
$ systemctl status ifup@eth0
● ifup@eth0.service - ifup for eth0
Loaded: loaded (/lib/systemd/system/ifup@.service; static; vendor preset: enabled)
Active: active (exited) since Thu 2015-03-19 10:12:40 EDT; 1min 26s ago
Process: 530 ExecStart=/lib/systemd/systemd-ifupdown-helper start %I (code=exited, status=0/SUCCESS)
Main PID: 530 (code=exited, status=0/SUCCESS)
CGroup: /system.slice/system-ifup.slice/ifup@eth0.service
├─1012 avahi-autoipd: [eth0] bound 169.254.9.16
├─1013 avahi-autoipd: [eth0] callout dispatche
└─1020 dhclient -1 -v -pf /run/dhclient.eth0.pid -lf /var/lib/dhcp/dhclient.eth0.leases eth0
Mar 19 10:12:30 brickies avahi-autoipd(eth0)[1012]: Found user 'avahi-autoipd' (UID 111) and group 'avahi-autoipd' (GID 123).
Mar 19 10:12:30 brickies avahi-autoipd(eth0)[1012]: Successfully called chroot().
Mar 19 10:12:30 brickies avahi-autoipd(eth0)[1012]: Successfully dropped root privileges.
Mar 19 10:12:30 brickies avahi-autoipd(eth0)[1012]: Starting with address 169.254.9.165
Mar 19 10:12:36 brickies avahi-autoipd(eth0)[1012]: Callout BIND, address 169.254.9.165 on interface eth0
Mar 19 10:12:40 brickies avahi-autoipd(eth0)[1012]: Successfully claimed IP address 169.254.9.165
Mar 19 10:12:40 brickies systemd[1]: Started ifup for eth0.
Mar 19 10:12:40 brickies ntpdate[1203]: Can't find host 0.ubuntu.pool.ntp.org: Name or service not known (-2)
Mar 19 10:12:40 brickies ntpdate[1203]: Can't find host 1.ubuntu.pool.ntp.org: Name or service not known (-2)
Mar 19 10:12:40 brickies ntpdate[1203]: Can't find host 2.ubuntu.pool.ntp.org: Name or service not known (-2)
--
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https://bugs.launchpad.net/bugs/1432829
Title:
resolvconf not updated correctly for interfaces configured in
initramfs
Status in systemd package in Ubuntu:
Confirmed
Bug description:
maas images utilize cloud-initramfs-dyn-netconf . The way this works is basically:
* /etc/network/interfaces in image is a link to ../../run/network/dynamic-interfaces
* kernel command line 'ip=' convince the initramfs to bring up networking using 'ipconfig'
example: ip=::::maas-enlist:BOOTIF
* ipconfig writes files in /run/net-*.conf for each interface it configures.
* cloud-initramfs-dyn-netconf module writes /run/network/dyanmic-interfaces based on /run/net-*.conf files that 'ipconfig' creates.
end result is that after the move to real root,
/etc/network/interfaces should be a symlink to /run/ that ends up
having something like this:
| ## This file is generated by cloud-initramfs-dyn-netconf
| auto lo
| iface lo inet loopback
| manual eth0
| iface eth0 inet dhcp
| dns-nameservers 192.168.64.3
| dns-search maas
resolvconf seems not to be working as well as it should be. In vivid
(now using systemd), I have only the resolvconf header in the file.
in all other supported ubuntu releases, doing the above results in functional resolv.conf via resolv.conf. Seen here from trusty:
| # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
| # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
| nameserver 192.168.64.3
Related Bugs:
* bug 1432821: something deleting /run/network after during boot
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: resolvconf 1.69ubuntu1.1
ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1
Uname: Linux 3.19.0-9-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
Date: Mon Mar 16 20:42:24 2015
PackageArchitecture: all
ProcEnviron:
TERM=vt102
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: resolvconf
UpgradeStatus: No upgrade log present (probably fresh install)
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References