Bug 1403258

Summary:	documentation says to edit /etc/grub2.conf - should be /etc/grub/default ?
Product:	Red Hat Enterprise Linux 7	Reporter:	Dwight (Bud) Brown <bubrown>
Component:	doc-Performance_Tuning_Guide	Assignee:	Marek Suchánek <msuchane>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.4	CC:	bubrown, rhel-docs, sreber
Target Milestone:	rc	Keywords:	Documentation
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-02-19 14:45:08 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:
Bug Depends On:
Bug Blocks:	1425467

Description Dwight (Bud) Brown 2016-12-09 14:22:34 UTC

Document URL: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Performance_Tuning_Guide/sect-Red_Hat_Enterprise_Linux-Performance_Tuning_Guide-Storage_and_File_Systems-Configuration_tools.html

Section Number and Name: 6.3.2. Setting the default I/O scheduler

Describe the issue: 
"To set the default I/O scheduler, specify the scheduler you want to use by appending the elevator parameter to the kernel command line, either at boot time or by editing the /etc/grub2.conf file. "

Typically not recommended to edit /etc/grub2.conf directly AFAIK.

Suggestions for improvement: 

suggest instead of editing /etc/grub2.conf, edit /etc/grub/default, addend the elevator parameter to the GRUB_CMDLINE_LINUX line and then grub2-mkconfig?

Additional information:

Comment 19 Marek Suchánek 2018-02-19 14:45:08 UTC

Since I believe all the documentation changes made as part of this bug are published, I'm simply closing it as CURRENTRELEASE.

In case it turns out something is missing after all, feel free to reopen it.