Bug 2033231

Summary:	disable all devices when ip=eth0:dhcp is specified for initramfs
Product:	[Fedora] Fedora	Reporter:	Vladimir Benes <vbenes>
Component:	anaconda	Assignee:	Radek Vykydal <rvykydal>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	36	CC:	anaconda-maint-list, jonathan, kellin, rvykydal, vanmeeuwen+fedora, vponcova, w
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:	anaconda-37.4-1	Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2022-05-03 15:35:22 UTC	Type:	Bug
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Vladimir Benes 2021-12-16 10:16:15 UTC

Description of problem:
Anaconda should turn off all devices after switchroot when we have ip=eth0:dhcp specified as an initramfs kernel param as other devices (that are possibly breaking correct routing) are up in addition to the desired eth0 one.

Version-Release number of selected component (if applicable):
rawhide (to be F36)

How reproducible:
always

Steps to Reproduce:
1. have a box with multiple ethernet devices
2. add a kernel param to boot from the possibly slowest one
3. have anaconda having just the one boot device enabled

Actual results:
all devices enabled

Expected results:
just the one specified with the boot param

Additional info:

Comment 1 Radek Vykydal 2021-12-16 10:29:53 UTC

I think it could be valuable to have a boot parameter that would disable creating of default auto connections by NM (and activating of all devices) after switch root. It is disabled by default in RHEL where we enable autoconnections only if there is no explicit network configuration and no kickstart: https://github.com/rhinstaller/anaconda/pull/3481. In Fedora we could use similar mechanism to implement inst.net.noautodefault boot option.

Comment 2 Ben Cotton 2022-02-08 21:21:10 UTC

This bug appears to have been reported against 'rawhide' during the Fedora 36 development cycle.
Changing version to 36.

Comment 3 Radek Vykydal 2022-03-11 10:59:09 UTC

Upstream PR: https://github.com/rhinstaller/anaconda/pull/3950
Kickstart test PR: https://github.com/rhinstaller/kickstart-tests/pull/693

Comment 4 Radek Vykydal 2022-03-16 10:39:44 UTC

This should be fixed in the next anaconda rawhide / f37 build.
We've added inst.net.noautodefault option.