I have a system (an OpenShift bare metal node running RHCOS
47.83.202103051045-0) with NetworkManager 1.26.0. The system recently
lost its public ip address. When I logged into the system, I saw:
# nmcli c show
NAME UUID TYPE DEVICE
Wired connection 1 de1f2c7a-9fb9-3581-89ce-43cb3157db92 ethernet eno1
Wired connection 2 e2318199-ce78-35d4-91b0-b2b4a73fb6b6 ethernet --
Wired connection 3 e14a050c-e6c6-33f5-93ef-d1db97a39052 ethernet --
Wired connection 4 ae774310-1c88-3354-9d0d-82997bae23b5 ethernet --
Where "Wired connection 2" is supposed to be online for device eno2.
The device is set correctly in the connection configuration:
# nmcli c show 'Wired connection 2'
[...]
connection.interface-name: eno2
And the interface was in fact present, although it was showing
NO-CARRIER (which is maybe why we lost the address in the first place,
but doesn't explain the subsequent error):
# ip addr show eno2
3: eno2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN
group default qlen 1000
link/ether 90:b1:1c:3a:15:7f brd ff:ff:ff:ff:ff:ff
When I tried to bring up the interface by running `nmcli c up
"Wired connection 2"`, I received the following error:
# nmcli c up 'Wired connection 2'
Error: Connection activation failed: No suitable device found for this
connection (device eno1 not available because profile is not
compatible with device (mismatching interface name)).
Why was this connection trying to use eno1 instead of eno2?
After rebooting the system, the interface came up without a problem:
# nmcli c show
NAME UUID TYPE DEVICE
Wired connection 2 e2318199-ce78-35d4-91b0-b2b4a73fb6b6 ethernet eno2
Wired connection 1 de1f2c7a-9fb9-3581-89ce-43cb3157db92 ethernet eno1
Wired connection 3 e14a050c-e6c6-33f5-93ef-d1db97a39052 ethernet --
Wired connection 4 ae774310-1c88-3354-9d0d-82997bae23b5 ethernet --
--
Lars Kellogg-Stedman <l...@redhat.com> | larsks @ {irc,twitter,github}
http://blog.oddbit.com/ | N1LKS
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