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Bug 441869

Summary: order of 'serial' and 'console' can cause a hang during boot on SC1435s
Product: Red Hat Enterprise Linux 5 Reporter: Corey Marthaler <cmarthal>
Component: bootyAssignee: Peter Jones <pjones>
Status: CLOSED WONTFIX QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: 5.2CC: ddumas, nstraz, rayford_johnson
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-09-25 20:01:06 UTC Type: ---
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: 441870    
Attachments:
Description Flags
Patch to fix the order or "serial" and "console" none

Description Corey Marthaler 2008-04-10 16:30:38 UTC 
Description of problem:
Every so often, I'd would notice my new SC1435s hang during boot up. I contacted
Dell and they told me to switch the order of my terminal line from 'serial
console' to 'console serial', and the caused the problem to go away.

Here's what the output looked like before the hang:

======= 
GRUB 
Loading stage2... 
Press space to continue. 
Press space to continue. 
Press space to continue. 
Press space to continue. 
=======
[HANG]

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


How reproducible:
once or so every 3-5 reboots
Comment 1 Nate Straz 2008-04-10 16:32:16 UTC 
Created attachment 302015 [details]
Patch to fix the order or "serial" and "console"
Comment 4 Chris Lumens 2008-08-18 15:26:21 UTC 
Just curious here... why does the order of the 'serial' and 'console' commands matter?
Comment 5 Nate Straz 2008-08-18 15:36:05 UTC 
Something about the order makes our systems hang some of the time.  Reversing the order makes rebooting more reliable.
Comment 6 Peter Jones 2008-09-25 19:35:30 UTC 
This change means grub will default to the keyboard+monitor for console instead of serial if no key is pressed.  This is almost certainly not the correct solution, as this code is only invoked if you're using a serial console for installation.

More investigation needs to be done into what exactly is hanging and why, and that needs to be fixed instead of this change.
Comment 7 RHEL Program Management 2008-09-25 20:01:06 UTC 
Development Management has reviewed and declined this request.  You may appeal
this decision by reopening this request.