Bug 1269920

Summary:	kpatch-build missing
Product:	Red Hat Enterprise Linux 7	Reporter:	Jeremy Harris <jeharris>
Component:	kpatch	Assignee:	Josh Poimboeuf <jpoimboe>
Status:	CLOSED NOTABUG	QA Contact:	Chunyu Hu <chuhu>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	7.0	CC:	lilu, sjenning
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-10-12 16:13:59 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 Jeremy Harris 2015-10-08 13:37:14 UTC

Description of problem:
  Neither the utility nor the manpage for kpatch-build can be found

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


How reproducible:
  100%


Steps to Reproduce:
1. (in a VM) RHEL7 install procedure per https://github.com/dynup/kpatch
2. sudo yum provides */*kpatch-build*
3.

Actual results:
  Loaded plugins: auto-update-debuginfo, langpacks, product-id, subscription-manager
  No matches found



Expected results:
  Usable kpatch installation

Additional info:

  kpatch itself is present, though I don't know if the above sequence installed
it or my original system installation:

  [jgh@rhel7 kpatch]$ which kpatch
  /usr/sbin/kpatch

Comment 2 Seth Jennings 2015-10-08 17:05:21 UTC

There is only a kpatch package for RHEL7, not a kpatch-build package.  There is currently no package in RHEL7 that includes the build-side utilities for kpatch.  The kpatch package only includes the apply-side utilities (i.e. the kpatch command).

In order to run kpatch-build:

1) Clone the github repo

git clone https://github.com/dynup/kpatch.git

2) Follow the README for "Install the dependencies for the "kpatch-build" command" in the RHEL7 section

https://github.com/dynup/kpatch#rhel-7

3) cd kpatch-build/ then invoke the kpatch-build script from there.

Comment 3 Jeremy Harris 2015-10-09 08:10:56 UTC

Those instructions do not appear to be sufficient:

 [jgh@rhel7 kpatch]$ kpatch-build ss.patch 
 ERROR: can't find supporting tools.

For added amusement, the manpage for kpatch references one for kpatch-build.

Comment 4 Josh Poimboeuf 2015-10-12 16:06:36 UTC

Jeremy,

Did you do "make" and "make install" first?

Comment 5 Josh Poimboeuf 2015-10-12 16:13:59 UTC

The missing kpatch-build RPM is by design.  kpatch-build is dangerous and should be used with care.  It isn't intended to be used by RHEL customers.  Any live patching done by customers should only be done with patch modules which have been built and signed internally at Red Hat.