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NetworkManager is not able to manage the devices on latest Ubuntu(18.04)
---uname output---
Linux (none) 4.15.0-12-generic #13-Ubuntu SMP Wed Mar 7 21:36:36 UTC 2018 s390x
s390x s390x GNU/Linux
Machine Type = z14 s390
---Debugger---
A debugger is not configured
---Steps to Reproduce---
1. Install the latest Ubuntu(18.04) with Network Manager(1.10.4).
2. Configure a network device and login to the partition through ssh.
3. Now you can see the following output
root@(none):~# nmcli d s
DEVICE TYPE STATE CONNECTION
eth0 ethernet unmanaged --
eth1 ethernet unmanaged --
lo loopback unmanaged --
Userspace tool common name: 1.10.6-2ubuntu1: amd64 arm64 armhf i386 ppc64el
s390x
The userspace tool has the following bit modes: 64-bit
Userspace rpm: NetworkManager --version 1.10.4
Userspace tool obtained from project website: na
Some more information about the issue:
Network device has been configured manually after the image is up from Support
Element(SE):
- znetconf -a <dev_id>
- cat /sys/bus/ccwgroup/drivers/qeth/<dev_id>/if_name
- ifconfig <interface_name> <ip_address> netmask 255.255.255.0
- route add default gw <gateway_address> <interface_name>
- SSH service has been configured
This helped us to login to the Lpar. In Lpar
- output of znetconf -c
Device IDs Type Card Type CHPID Drv. Name
State
-------------------------------------------------------------------------------------
0.0.1a80,0.0.1a81,0.0.1a82 1731/01 OSD_10GIG A8 qeth eth0
online
0.0.1810,0.0.1811,0.0.1812 1731/01 OSD_1000 D0 qeth eth1
online
- output of nmcli c s
root@(none):~# nmcli c s
NAME UUID TYPE DEVICE
- output of nmcli d s
root@(none):~# nmcli d s
DEVICE TYPE STATE CONNECTION
eth0 ethernet unmanaged --
eth1 ethernet unmanaged --
lo loopback unmanaged --
* The above output shows that devices are not managed by nmcli
After some investigation we found couple of suggestions like
1. Ubuntu(version <17.04): Creating an empty
file(/etc/NetworkManager/conf.d/10-globally-managed-devices.conf) and
restarting NM,
solved the issue.
2. Ubuntu(version 17.10): Copying the said
file(10-globally-managed-devices.conf) from /usr/lib to /etc/ and modifying the
"unmanaged-devices" to none, resolved the issue.
* link for reference: https://bugs.launchpad.net/ubuntu/+source/network-
manager/+bug/1638842
For the latest version(18.04), none of the above solutions worked.
** Affects: ubuntu-z-systems
Importance: Undecided
Status: New
** Affects: network-manager (Ubuntu)
Importance: Undecided
Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
Status: New
** Tags: architecture-all bugnameltc-168090 severity-critical
targetmilestone-inin---
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Network Manager is not able to manage the devices on Ubuntu 18.04
https://bugs.launchpad.net/bugs/1772859
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