Hi folks,
after the upgrade from Buster to Bullseye (including the migration from
sysv init to systemd) the network interface names were messed up on
several hosts. Apparently udev stumbles over a naming conflict:
# journalctl -b | egrep -i e1000e\|igb\|rename\|eth\enp\|eno
Jan 03 11:30:14 nasl002b.example.com kernel: ACPI: Added
_OSI(Linux-Lenovo-NV-HDMI-Audio)
Jan 03 11:30:14 nasl002b.example.com kernel: igb: Intel(R) Gigabit Ethernet
Network Driver
Jan 03 11:30:14 nasl002b.example.com kernel: igb: Copyright (c) 2007-2014 Intel
Corporation.
Jan 03 11:30:14 nasl002b.example.com kernel: e1000e: Intel(R) PRO/1000 Network
Driver
Jan 03 11:30:14 nasl002b.example.com kernel: e1000e: Copyright(c) 1999 - 2015
Intel Corporation.
Jan 03 11:30:14 nasl002b.example.com kernel: e1000e 0000:00:19.0: Interrupt
Throttling Rate (ints/sec) set to dynamic conservative mode
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.0: added PHC on eth0
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.0: Intel(R) Gigabit
Ethernet Network Connection
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.0: eth0:
(PCIe:5.0Gb/s:Width x4) a0:36:9f:00:06:1c
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.0: eth0: PBA No:
G15139-001
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.0: Using MSI-X
interrupts. 8 rx queue(s), 8 tx queue(s)
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.1: added PHC on eth1
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.1: Intel(R) Gigabit
Ethernet Network Connection
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.1: eth1:
(PCIe:5.0Gb/s:Width x4) a0:36:9f:00:06:1d
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.1: eth1: PBA No:
G15139-001
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.1: Using MSI-X
interrupts. 8 rx queue(s), 8 tx queue(s)
Jan 03 11:30:14 nasl002b.example.com kernel: e1000e 0000:00:19.0 0000:00:19.0
(uninitialized): registered PHC clock
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.2: added PHC on eth2
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.2: Intel(R) Gigabit
Ethernet Network Connection
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.2: eth2:
(PCIe:5.0Gb/s:Width x4) a0:36:9f:00:06:1e
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.2: eth2: PBA No:
G15139-001
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.2: Using MSI-X
interrupts. 8 rx queue(s), 8 tx queue(s)
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.3: added PHC on eth3
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.3: Intel(R) Gigabit
Ethernet Network Connection
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.3: eth3:
(PCIe:5.0Gb/s:Width x4) a0:36:9f:00:06:1f
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.3: eth3: PBA No:
G15139-001
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.3: Using MSI-X
interrupts. 8 rx queue(s), 8 tx queue(s)
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.2 eth4: renamed
from eth2
Jan 03 11:30:14 nasl002b.example.com kernel: e1000e 0000:00:19.0 eth2: (PCI
Express:2.5GT/s:Width x1) 00:1e:67:19:34:6d
Jan 03 11:30:14 nasl002b.example.com kernel: e1000e 0000:00:19.0 eth2: Intel(R)
PRO/1000 Network Connection
Jan 03 11:30:14 nasl002b.example.com kernel: e1000e 0000:00:19.0 eth2: MAC: 10,
PHY: 11, PBA No: 0100FF-0FF
Jan 03 11:30:14 nasl002b.example.com kernel: igb 0000:02:00.3 eth5: renamed
from eth3
Jan 03 11:30:14 nasl002b.example.com kernel: e1000e 0000:05:00.0: Interrupt
Throttling Rate (ints/sec) set to dynamic conservative mode
Jan 03 11:30:14 nasl002b.example.com kernel: e1000e 0000:05:00.0 0000:05:00.0
(uninitialized): registered PHC clock
Jan 03 11:30:14 nasl002b.example.com kernel: e1000e 0000:05:00.0 eth3: (PCI
Express:2.5GT/s:Width x1) 00:1e:67:19:34:6c
Jan 03 11:30:14 nasl002b.example.com kernel: e1000e 0000:05:00.0 eth3: Intel(R)
PRO/1000 Network Connection
Jan 03 11:30:14 nasl002b.example.com kernel: e1000e 0000:05:00.0 eth3: MAC: 3,
PHY: 8, PBA No: 1000FF-0FF
Jan 03 11:30:15 nasl002b.example.com kernel: igb 0000:02:00.1 enp2s0f1: renamed
from eth1
Jan 03 11:30:15 nasl002b.example.com kernel: igb 0000:02:00.0 eno1: renamed
from eth0
Jan 03 11:30:15 nasl002b.example.com kernel: e1000e 0000:05:00.0 enp5s0:
renamed from eth3
Jan 03 11:30:15 nasl002b.example.com systemd-udevd[416]: eth2: Failed to rename
network interface 6 from 'eth2' to 'eno1': File exists
Jan 03 11:30:20 nasl002b.example.com kernel: e1000e 0000:05:00.0 enp5s0: NIC
Link is Up 1000 Mbps Full Duplex, Flow Control: None
Apparently udev stops renaming interfaces after the first conflict. eth4 and
eth5
have kept their names, too, even thought there wouldn't be any further conflict:
# ip l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode
DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eno1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT
group default qlen 1000
link/ether a0:36:9f:00:06:1c brd ff:ff:ff:ff:ff:ff
altname enp2s0f0
3: enp2s0f1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT
group default qlen 1000
link/ether a0:36:9f:00:06:1d brd ff:ff:ff:ff:ff:ff
4: eth4: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT
group default qlen 1000
link/ether a0:36:9f:00:06:1e brd ff:ff:ff:ff:ff:ff
altname enp2s0f2
5: eth5: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT
group default qlen 1000
link/ether a0:36:9f:00:06:1f brd ff:ff:ff:ff:ff:ff
altname enp2s0f3
6: eth2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT
group default qlen 1000
link/ether 00:1e:67:19:34:6d brd ff:ff:ff:ff:ff:ff
altname enp0s25
7: enp5s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
mode DEFAULT group default qlen 1000
link/ether 00:1e:67:19:34:6c brd ff:ff:ff:ff:ff:ff
systemd & udev is version 247.3-6, as included in Bullseye.
Every helpful comment is highly appreciated
Harri
