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Bug 1167082

Summary:	Logging broken when dinfo exists in PATH
Product:	Red Hat Enterprise Linux 7	Reporter:	Petr Vokac <vokac>
Component:	dracut	Assignee:	Harald Hoyer <harald>
Status:	CLOSED ERRATA	QA Contact:	Release Test Team <release-test-team-automation>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	7.0	CC:	dracut-maint-list, harald, mhruscak
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-11-19 12:51:36 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 Petr Vokac 2014-11-23 12:17:16 UTC

Description of problem:

Logging function stored in dracut-logger.sh are included by dracut-functions only if "type dinfo" fails. Unfortunately this test is also satisfied when "dinfo" file exists in PATH and in such situation dracut fails to run.

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

dracut-033-161.el7_0.173.x86_64

Steps to Reproduce:
1. touch /usr/bin/dinfo
2. yum remove -y kernel-3.10.0-123.9.3.el7.x86_64
3. yum upgrade -y

Actual results:

...
Running transaction
  Installing : kernel-3.10.0-123.9.3.el7.x86_64                                                                                                                                                                                                                            1/1 
/sbin/dracut: line 834: /usr/bin/dinfo: Permission denied
/sbin/dracut: line 1167: /usr/bin/dinfo: Permission denied
/sbin/dracut: line 1167: /usr/bin/dinfo: Permission denied
/sbin/dracut: line 1167: /usr/bin/dinfo: Permission denied
/usr/lib/dracut/dracut-functions.sh: line 1645: derror: command not found
/usr/lib/dracut/dracut-functions.sh: line 1645: derror: command not found
/usr/lib/dracut/dracut-functions.sh: line 1645: derror: command not found
/usr/lib/dracut/dracut-functions.sh: line 1645: derror: command not found
/usr/lib/dracut/dracut-functions.sh: line 1645: derror: command not found
/sbin/dracut: line 1178: dfatal: command not found
mkinitrd failed
...

Additional info:

There is a function in dracut-functions called "is_func" that could be used to safely check existence of the dinfo function.

Comment 2 Harald Hoyer 2014-11-24 14:22:02 UTC

Thanks!

Of course, the best fix would be to rename the function to dracut_info()

http://git.kernel.org/cgit/boot/dracut/dracut.git/commit/?id=26d14fb3d36d6091f64258a62c49939478405693

Comment 7 errata-xmlrpc 2015-11-19 12:51:36 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://rhn.redhat.com/errata/RHBA-2015-2091.html