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Bug 1888779

Summary:	backport support for rd.multipath=default
Product:	Red Hat Enterprise Linux 8	Reporter:	Prashanth Sundararaman <psundara>
Component:	dracut	Assignee:	Lukáš Nykrýn <lnykryn>
Status:	CLOSED ERRATA	QA Contact:	Frantisek Sumsal <fsumsal>
Severity:	urgent	Docs Contact:
Priority:	unspecified
Version:	8.3	CC:	ben.haubeck, brueckner, bugproxy, dgilmore, dornelas, dracut-maint-list, dtardon, fsumsal, hannsj_uhl, hwolf, imcleod, jbastian, jomiller, lnykryn, mkumatag, mrussell, tstaudt
Target Milestone:	rc	Keywords:	Triaged, ZStream
Target Release:	8.4	Flags:	pm-rhel: mirror+
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	dracut-049-100.git20201120.el8	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	1899964 (view as bug list)		Environment:
Last Closed:	2021-05-18 15:02:47 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:	1796871, 1897384, 1899964

Description Prashanth Sundararaman 2020-10-15 18:25:35 UTC

Multipath support is a feature that is required for redundancy in FCP disks on s390x when doing OCP installs. We would need this patch:
 
https://github.com/dracutdevs/dracut/pull/780

to be included in dracut to support multipath in RHCOS and therefore be supported in OCP.

Comment 1 Hendrik Brueckner 2020-11-05 14:37:11 UTC

Hi Lukáš,

where do you stand with the backport of this functionality? Without this backport and, likely, a z-stream release to 8.3.z, it would impact the multipath support for x86, power, and Z for OCP 4.7.

@dgilmore/hwolf: Regarding OCP 4.7, do we have clarity whether OCP 4.7 will pick RHEL-8.3? If not, we likely require this to be backported to 8.2.z as well.

THanks.

Comment 2 Prashanth Sundararaman 2020-11-05 14:57:30 UTC

@brueckner Regarding OCP 4.7, RHCOS will pick up RHEL-8.3 in a week or two. There is some fixes waiting to happen in RHCOS before it can be picked up.

Comment 3 Hendrik Brueckner 2020-11-06 10:17:09 UTC

(In reply to Prashanth Sundararaman from comment #2)
> @brueckner Regarding OCP 4.7, RHCOS will pick up RHEL-8.3 in a week or two.
> There is some fixes waiting to happen in RHCOS before it can be picked up.

Thanks for the information.. so we then need only a 8.3.z update for dracut.

@jomiller: Could you put this bug on the list for a 8.3.z that needs to go into RHCOS for OCP 4.7. Thanks.

Comment 4 Dennis Gilmore 2020-11-09 18:31:50 UTC

clearing needinfo for myself as I do not see any questions I need to answer.

Comment 5 mkumatag 2020-11-11 13:27:36 UTC

I'm not sure why the hardware is set for only s390x, we need it even for the ppc64le platform as well. @hannsj_uhl.com

Comment 6 Hanns-Joachim Uhl 2020-11-11 13:40:55 UTC

(In reply to mkumatag from comment #5)
> I'm not sure why the hardware is set for only s390x, we need it even for the
> ppc64le platform as well. @hannsj_uhl.com
.
ok ... re-setting 'Hardware' accordingly to 'All' ..

Comment 7 David Tardon 2020-11-13 08:30:51 UTC

*** Bug 1896759 has been marked as a duplicate of this bug. ***

Comment 8 Holger Wolf 2020-11-18 11:22:54 UTC

(In reply to Hendrik Brueckner from comment #1)
> Hi Lukáš,
> 
> where do you stand with the backport of this functionality? Without this
> backport and, likely, a z-stream release to 8.3.z, it would impact the
> multipath support for x86, power, and Z for OCP 4.7.
> 
> @dgilmore/hwolf: Regarding OCP 4.7, do we have clarity whether OCP 4.7 will
> pick RHEL-8.3? If not, we likely require this to be backported to 8.2.z as
> well.
> 
> THanks.

want to follow-up on that - since this is a important item - was the re-base on 8.3 done and will be made available for OCP 4.7?

Comment 9 Prashanth Sundararaman 2020-11-18 13:58:11 UTC

There is another BZ which was filed by the coreos-team which covers this backport as well as additional ones needed for 4.7: https://bugzilla.redhat.com/show_bug.cgi?id=1897384

Comment 10 mrussell@redhat.com 2020-11-19 15:23:10 UTC

OpenShift 4.7 will be on RHEL 8.3 content. The rebase is currently in progress and we hope will be done soon.

Comment 11 Joshua Miller 2020-11-19 15:30:42 UTC

Holger,
The bug is working towards backport.  It has not as of today been backported.

Comment 23 errata-xmlrpc 2021-05-18 15:02:47 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 (dracut bug fix and enhancement update), 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-2021:1661