please reopen if this is still an issue
** Changed in: systemd (Ubuntu)
Status: Triaged => Won't Fix
** Changed in: systemd (Ubuntu)
Status: Won't Fix => Invalid
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https://bugs.launchpad.net/bugs/1544747
Title:
Strange device names for USB NICs
Status in systemd package in Ubuntu:
Invalid
Bug description:
Fresh install of Xenial on an intel NUC with 1 onboard GigE and one
USB GigE NIC.
I was setting up networking for MAAS and discovered that the device
names were ridiculous:
bladernr@critical-maas:/etc/udev$ ifconfig |grep HWaddr
eno1 Link encap:Ethernet HWaddr ec:a8:6b:fb:9f:66
enx8cae4cff4099 Link encap:Ethernet HWaddr 8c:ae:4c:ff:40:99
In the previous Trusty install on this NUC with the same USB dongle,
they were named eth0 and em1. The predictable standard device names.
Looking at udevadm:
P: /devices/pci0000:00/0000:00:19.0/net/eno1
E: DEVPATH=/devices/pci0000:00/0000:00:19.0/net/eno1
E: ID_BUS=pci
E: ID_MM_CANDIDATE=1
E: ID_MODEL_FROM_DATABASE=82579LM Gigabit Network Connection
E: ID_MODEL_ID=0x1502
E: ID_NET_DRIVER=e1000e
E: ID_NET_LABEL_ONBOARD=en L1U1
E: ID_NET_LINK_FILE=/lib/systemd/network/99-default.link
E: ID_NET_NAME_MAC=enxeca86bfb9f66
E: ID_NET_NAME_ONBOARD=eno1
E: ID_NET_NAME_PATH=enp0s25
E: ID_OUI_FROM_DATABASE=ELITEGROUP COMPUTER SYSTEMS CO., LTD.
E: ID_PATH=pci-0000:00:19.0
E: ID_PATH_TAG=pci-0000_00_19_0
E: ID_PCI_CLASS_FROM_DATABASE=Network controller
E: ID_PCI_SUBCLASS_FROM_DATABASE=Ethernet controller
E: ID_VENDOR_FROM_DATABASE=Intel Corporation
E: ID_VENDOR_ID=0x8086
E: IFINDEX=2
E: INTERFACE=eno1
E: SUBSYSTEM=net
E: SYSTEMD_ALIAS=/sys/subsystem/net/devices/eno1
E: TAGS=:systemd:
E: USEC_INITIALIZED=5400250
P:
/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.0/net/enx8cae4cff4099
E:
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.0/net/enx8cae4cff4099
E: ID_BUS=usb
E: ID_MM_CANDIDATE=1
E: ID_MODEL=AX88178
E: ID_MODEL_ENC=AX88178\x20
E: ID_MODEL_FROM_DATABASE=AX88178
E: ID_MODEL_ID=1780
E: ID_NET_DRIVER=asix
E: ID_NET_LINK_FILE=/lib/systemd/network/90-mac-for-usb.link
E: ID_NET_NAME=enx8cae4cff4099
E: ID_NET_NAME_MAC=enx8cae4cff4099
E: ID_NET_NAME_PATH=enp0s29u1u5
E: ID_OUI_FROM_DATABASE=Plugable Technologies
E: ID_PATH=pci-0000:00:1d.0-usb-0:1.5:1.0
E: ID_PATH_TAG=pci-0000_00_1d_0-usb-0_1_5_1_0
E: ID_REVISION=0001
E: ID_SERIAL=ASIX_Elec._Corp._AX88178_000002
E: ID_SERIAL_SHORT=000002
E: ID_TYPE=generic
E: ID_USB_CLASS_FROM_DATABASE=Vendor Specific Class
E: ID_USB_DRIVER=asix
E: ID_USB_INTERFACES=:ffff00:
E: ID_USB_INTERFACE_NUM=00
E: ID_USB_SUBCLASS_FROM_DATABASE=Vendor Specific Subclass
E: ID_VENDOR=ASIX_Elec._Corp.
E: ID_VENDOR_ENC=ASIX\x20Elec.\x20Corp.
E: ID_VENDOR_FROM_DATABASE=ASIX Electronics Corp.
E: ID_VENDOR_ID=0b95
E: IFINDEX=3
E: INTERFACE=enx8cae4cff4099
E: SUBSYSTEM=net
E: SYSTEMD_ALIAS=/sys/subsystem/net/devices/enx8cae4cff4099
/sys/subsystem/net/devices/enx8cae4cff4099
E: TAGS=:systemd:
E: USEC_INITIALIZED=8700146
And finally, looking in /etc/udev:
bladernr@critical-maas:/etc/udev$ sudo ls -ra /etc/udev/*
/etc/udev/udev.conf
/etc/udev/rules.d:
.. .
/etc/udev/hwdb.d:
.. .
There are NO rules at all in udev for persistent names. Not even some
samples and defaults.
Looking at a completely different Xenial system with a single GigE NIC:
bladernr@galactica:~$ ifconfig
enp2s0 Link encap:Ethernet HWaddr 40:8d:5c:51:5b:0d
P: /devices/pci0000:00/0000:00:1b.2/0000:02:00.0/net/enp2s0
E: DEVPATH=/devices/pci0000:00/0000:00:1b.2/0000:02:00.0/net/enp2s0
E: ID_BUS=pci
E: ID_MM_CANDIDATE=1
E: ID_MODEL_FROM_DATABASE=Killer E220x Gigabit Ethernet Controller
E: ID_MODEL_ID=0xe091
E: ID_NET_DRIVER=alx
E: ID_NET_LINK_FILE=/lib/systemd/network/99-default.link
E: ID_NET_NAME_MAC=enx408d5c515b0d
E: ID_NET_NAME_PATH=enp2s0
E: ID_OUI_FROM_DATABASE=GIGA-BYTE TECHNOLOGY CO.,LTD.
E: ID_PATH=pci-0000:02:00.0
E: ID_PATH_TAG=pci-0000_02_00_0
E: ID_PCI_CLASS_FROM_DATABASE=Network controller
E: ID_PCI_SUBCLASS_FROM_DATABASE=Ethernet controller
E: ID_VENDOR_FROM_DATABASE=Qualcomm Atheros
E: ID_VENDOR_ID=0x1969
E: IFINDEX=2
E: INTERFACE=enp2s0
E: SUBSYSTEM=net
E: SYSTEMD_ALIAS=/sys/subsystem/net/devices/enp2s0
E: TAGS=:systemd:
E: USEC_INITIALIZED=752502
and again, nothing in the udev rules:
bladernr@galactica:~$ ls -a /etc/udev/*
/etc/udev/udev.conf
/etc/udev/hwdb.d:
. ..
/etc/udev/rules.d:
. ..
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: udev 228-6ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-2.16-generic 4.4.0
Uname: Linux 4.4.0-2-generic x86_64
ApportVersion: 2.19.4-0ubuntu2
Architecture: amd64
Date: Thu Feb 11 16:36:35 2016
InstallationDate: Installed on 2016-02-10 (1 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160210)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-2-generic.efi.signed
root=UUID=b53bf9e5-5cab-4ebd-98cc-a07ddffe53af ro quiet splash vt.handoff=7
SourcePackage: systemd
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/03/2014
dmi.bios.vendor: Intel Corp.
dmi.bios.version: RKPPT10H.86A.0032.2014.0303.1322
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: D53427RKE
dmi.board.vendor: Intel Corporation
dmi.board.version: G87971-403
dmi.chassis.type: 3
dmi.modalias:
dmi:bvnIntelCorp.:bvrRKPPT10H.86A.0032.2014.0303.1322:bd03/03/2014:svn:pn:pvr:rvnIntelCorporation:rnD53427RKE:rvrG87971-403:cvn:ct3:cvr:
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