Bug 237438

Summary:	dmraid fails to detect at boot
Product:	[Fedora] Fedora	Reporter:	Need Real Name <sonikbuddha>
Component:	dmraid	Assignee:	Milan Broz <mbroz>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6	CC:	agk, dwysocha, mbroz, prockai, pvrabec
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-04-26 13:56:18 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:

Description Need Real Name 2007-04-23 02:55:45 UTC

Description of problem:
dmraid (not root partition) is failing to detect at boot.  The function
resolve_dm_name() in /etc/init.d/functions called by /etc/rc.sysinit, depends on
"dmsetup table" to return available devices but "dmsetup table" seems to only
see already active devices, thus a chicken or egg situation where no device is
returned for activation.

Version-Release number of selected component (if applicable):
dmraid-1.0.0.rc13
initscripts-8.45.7-1

How reproducible:
Create a hardware based raid utilizing dmraid.  Reboot.

Steps to Reproduce:
1.Create a raid utilizing "fakeraid" hardware.
2.Test for active raid devices, dmraid -tay
3.reboot
  
Actual results:
Although /etc/rc.sysinit is supposed to pass the available raid devices to
dmraid to activate via resolve_dm_name(), they fail to get recognized and the
raid device does not get created under /dev/mappper.

Expected results:


Additional info:

Comment 1 Need Real Name 2007-04-23 05:09:11 UTC

Ah, I figured it out and resolved my problem by updating the initrd.
I would not have thought that it would require a mkinitrd to set up to use
fakeraid drivers for a non-root partition.  Technically, not a bug, although I'd
think m'be the design could be better.  That is, unless I'm missing something.

Comment 2 Milan Broz 2007-04-26 13:56:18 UTC

Init script expect already existing dm device.
mkinitrd also prepare possible kernel modules for underlying storage drivers.
If you think that it is bug, please report/reopen bug to initscripts component.