Bug 1741830

Summary: network interfaces are not coming up at boot time RHEL 7.6
Product: Red Hat Enterprise Linux 7 Reporter: Anthony <anthony.mcmahon>
Component: initscriptsAssignee: Jan Macku <jamacku>
Status: CLOSED ERRATA QA Contact: Daniel Rusek <drusek>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 7.6CC: fsumsal, initscripts-maint-list, lnykryn, udev-maint-list
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: initscripts-9.49.49-1.el7 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 1743249 (view as bug list) Environment:
Last Closed: 2020-03-31 19:43:04 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1743249    
Attachments:
Description Flags
sosreport none

Description Anthony 2019-08-16 08:09:13 UTC 
Created attachment 1604307 [details]
sosreport

Description of problem:
Network interfaces are not coming up after installation issues appears to be an issue with unused ports with an  network card (eno1 used , eno2-4 not used)

ifcfg files are empty 

-rw-r--r--. 1 root root 255 Aug  7 15:54 /etc/sysconfig/network-scripts/ifcfg-eno1
-rw-r--r--. 1 root root   0 Aug  9 13:36 /etc/sysconfig/network-scripts/ifcfg-eno2
-rw-r--r--. 1 root root   0 Aug  9 13:36 /etc/sysconfig/network-scripts/ifcfg-eno3


Addionally no udev file is created 

ls -l /etc/udev/rules.d/

Version-Release number of selected component (if applicable):
RHEL 7.6

Workaround is to add device to the ifcfg

[root@ieatrcx3490 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eno4
DEVICE=eno4
[root@ieatrcx3490 ~]# ifup eno4

[root@ieatrcx3490 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eno3
[root@ieatrcx3490 ~]# ifup eno3
ERROR     : [/etc/sysconfig/network-scripts/ifup-eth] Device  does not seem to be present, delaying initialisation.



How reproducible:
All the time 

Steps to Reproduce:
1.No cabled all ports within an network card


Actual results:


Expected results:


Additional info:
Previously issue for this
https://access.redhat.com/solutions/2523931
Has a fix ever being delivered for this ?
Comment 2 Lukáš Nykrýn 2019-08-16 09:04:05 UTC 
I am not sure if I follow. What is this bug about? Isn't the device with the cable brought up? Or is this report just about the "Device  does not seem to be present, delaying initialisation." message?
Comment 3 Anthony 2019-08-16 09:42:25 UTC 
The unused are reporting "Device  does not seem to be present, delaying initialisation." when booting up
Comment 4 Lukáš Nykrýn 2019-08-16 10:10:59 UTC 
Let's move this to initscripts, ifup-eth should probably bail out before calling is_available ${REALDEVICE} if REALDEVICE is empty. Like we do when mac address does not match.

The smallest reproducer is:


[root@ci-vm-10-0-137-110 ~]# modprobe dummy
[root@ci-vm-10-0-137-110 ~]# ip link add dummy0 type dummy #fails on rhel7 since the device is created automagically when the module is loaded, this does not happen on newer systems
RTNETLINK answers: File exists
[root@ci-vm-10-0-137-110 ~]# touch /etc/sysconfig/network-scripts/ifcfg-dummy0
[root@ci-vm-10-0-137-110 ~]# ifup dummy0
ERROR     : [/etc/sysconfig/network-scripts/ifup-eth] Device  does not seem to be present, delaying initialization.

Jan, could you please also try what will happen when there is NetworkManager installed and running in such scenario?
Comment 5 Jan Macku 2019-08-19 10:21:59 UTC 
Thank you Lukáš.

This issue is currently fixed in upstream:
https://github.com/fedora-sysv/initscripts/commit/c060c55bd62a18f5563cc30c894d07b0ec1be497
Comment 6 Jan Macku 2019-08-19 12:19:13 UTC 
This bug will be fixed in RHEL 7.8.
Comment 10 errata-xmlrpc 2020-03-31 19:43:04 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:1042