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Bug 1878085

Summary:	Integrate NetworkManager in dracut (initramfs/initrd) [doc-only, rhel-8.3]
Product:	Red Hat Enterprise Linux 8	Reporter:	Thomas Haller <thaller>
Component:	Documentation	Assignee:	Sagar Dubewar <sdubewar>
Documentation sub component:	default	QA Contact:
Status:	CLOSED NOTABUG	Docs Contact:	Sagar Dubewar <sdubewar>
Severity:	medium
Priority:	medium	CC:	acardace, atragler, bgalvani, cbesson, desktop-qa-list, fgiudici, harald, hartsjc, jmaxwell, lmanasko, lnykryn, lrintel, mmuehlfe, pkotvan, release-test-team-automation, rhel-docs, rkhan, rvykydal, scorreia, sukulkar, thaller, till, vbenes
Version:	8.3	Keywords:	Reopened
Target Milestone:	rc	Flags:	pm-rhel: mirror+
Target Release:	8.2
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:	.The `dracut` utility by default now uses NetworkManager in initial RAM disk Previously, the `dracut` utility was using a shell script to manage networking in the initial RAM disk, `initrd`. In certain cases, this could cause problems. For example, the NetworkManager sends another DHCP request, even if the script in the RAM disk has already requested an IP address, which could result in a timeout. With this update, the `dracut` by default now uses the NetworkManager in the initial RAM disk and prevents the system from running into issues. In case you want to switch back to the previous implementation, and recreate the RAM disk images, use the following commands: ---- # echo 'add_dracutmodules+=" network-legacy "' > /etc/dracut.conf.d/enable-network-legacy.conf # dracut -vf --regenerate-all ----	Story Points:	---
Clone Of:	1626348	Environment:
Last Closed:	2020-10-06 14:52:17 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:

Description Thomas Haller 2020-09-11 09:45:40 UTC

+++ This bug was initially created as a clone of Bug #1577840 +++

Integrate NetworkManager in dracut

* NM is the default in initramfs
* no more dracut network scripts 
* internal test suite passes
* installation with NM in the initrd works



This feature was implemented for rhel-8.2. It was available for users who explicitly opted in to use NetworkManager in initrd/dracut, instead of dracut's network module. This was documented as technology preview in the release-notes for bug 1577840.

In rhel-8.3, RHEL will run NetworkManager in initrd by default. What really changes is only the default. The user still can configure the system to prefer dracuts network module instead.

This is a big change and should be again highlighted for the release notes for rhel-8.3.

The text could be similiar to bug 1577840.

Comment 2 Thomas Haller 2020-09-11 10:12:25 UTC

Oh, of course, I meant this to be a clone of bug 1626348, and not bug 1577840.

Comment 3 Thomas Haller 2020-09-11 10:16:44 UTC

(In reply to Thomas Haller from comment #2)
> Oh, of course, I meant this to be a clone of bug 1626348, and not bug
> 1577840.

both bugs are about the same thing, but one is assigned to dracut and the other to NetworkManager.

Comment 5 Thomas Haller 2020-09-14 11:47:24 UTC

doctext lgtm. Thank you

Comment 8 Thomas Haller 2020-09-15 12:16:04 UTC

I am going to close this bug.

It doesn't seem anything for our QA to test, so adding it to errata seems wrong.
Also, the bug is explicitly about rhel-8.3, so keeping it around longer makes no sense.

The purpose of this rhbz was to track (and discuss) the 8.3 release-note entry for NetworkManager. That is done. If you have anything to add, please reopen (or simply comment).

Comment 10 Thomas Haller 2020-09-15 12:23:04 UTC

ok!

Comment 11 Antonio Cardace 2020-09-24 13:36:02 UTC

Nothing to do for NetworkManager, moving this to documentation.