Public bug reported:
Ubuntu 18.04 upgraded from 16.04 in 2018. System was working fine until
latest batch of updates/patches.
PC boots up without issues, but there is no network when desktop
appears. dmesg does not show any problems related to network. It appears
network simply does not attempt to start. When trying to start network-
manager manually, it crashes with segfault.
Network does start manually with: sudo ip link set dev eno1 up
Followed by: sudo dhclient -v eno1
NetworkManager applets say "something went wrong"
Output of lsb_release -rd:
Description: Ubuntu 18.04.4 LTS
Release: 18.04
Output of apt-cache policy pkgname:
network-manager:
Installed: 1.10.6-2ubuntu1.4
Candidate: 1.10.6-2ubuntu1.4
Version table:
*** 1.10.6-2ubuntu1.4 500
500 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64
Packages
100 /var/lib/dpkg/status
1.10.6-2ubuntu1.1 500
500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
1.10.6-2ubuntu1 500
500 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
What I expected to happen:
System should boot up normally and have network available, via DHCP
What happened instead:
System boots up, network is not configured, there are no errors, but
NetworkManager crashes upon manual start.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
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Packages, which is subscribed to network-manager in Ubuntu.
https://bugs.launchpad.net/bugs/1888996
Title:
NetworkManager crashes with segfault after July 2020 updates
Status in network-manager package in Ubuntu:
New
Bug description:
Ubuntu 18.04 upgraded from 16.04 in 2018. System was working fine
until latest batch of updates/patches.
PC boots up without issues, but there is no network when desktop
appears. dmesg does not show any problems related to network. It
appears network simply does not attempt to start. When trying to start
network-manager manually, it crashes with segfault.
Network does start manually with: sudo ip link set dev eno1 up
Followed by: sudo dhclient -v eno1
NetworkManager applets say "something went wrong"
Output of lsb_release -rd:
Description: Ubuntu 18.04.4 LTS
Release: 18.04
Output of apt-cache policy pkgname:
network-manager:
Installed: 1.10.6-2ubuntu1.4
Candidate: 1.10.6-2ubuntu1.4
Version table:
*** 1.10.6-2ubuntu1.4 500
500 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64
Packages
100 /var/lib/dpkg/status
1.10.6-2ubuntu1.1 500
500 http://security.ubuntu.com/ubuntu bionic-security/main amd64
Packages
1.10.6-2ubuntu1 500
500 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
What I expected to happen:
System should boot up normally and have network available, via DHCP
What happened instead:
System boots up, network is not configured, there are no errors, but
NetworkManager crashes upon manual start.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1888996/+subscriptions
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