Bug 31671

Summary: 4.4 installer hangs at " Mounting root from ufs:/dev/mdoc"
Product: Base System Reporter: Kent Timmerman <kentkt>
Component: i386Assignee: freebsd-doc (Nobody) <doc>
Status: Closed FIXED    
Severity: Affects Only Me    
Priority: Normal    
Version: Unspecified   
Hardware: Any   
OS: Any   

Description Kent Timmerman 2001-10-31 20:10:03 UTC 
I have install CDs for versions 3.5.1 through 4.3. All of these versions will complete the kernel configuration and enter sysinstall. When I run 4.4 the kernel configuration hangs at " Mounting root from ufs:/dev/md0c" and will proceed no further. All conflicts are cleared and the hard drive is dangerously dedicated.
Hardware: Abit PX5 with AMD K6-200 processor, Maxtor 71626A hard drive, BCD 24x CDROM, Jaton 1 Meg. video adapter, Magitron monitor, AOpen AON325 NIC.

How-To-Repeat: 4.3 kernel config. runs, 4.4 hangs every time.
Comment 1 Lyubomir.Russev 2001-11-23 13:55:52 UTC 
I had similar problem on P-233MMX/256RAM/30GB HDD/Spacewalker-HOT569A-Intel430TX
Motherboard/8MB SiS SVGA/
Problem disapeared when I enabled "Assign IRQ for USB" in my AWARD BIOS.
Comment 2 Murray Stokely freebsd_committer freebsd_triage 2001-11-23 19:37:34 UTC 
State Changed
From-To: open->feedback

Does the proposed solution work for you?  Thanks.
Comment 3 wk 2001-11-28 18:20:28 UTC 
another addition to this issue:

I had an Adaptec 2940 UW SCSI Controller attached to 
my system and the 4.4 installer locked up at:

"Waiting 15 seconds for SCSI devices to settle"

After applying the BIOS Setting mentioned in

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=31671 

the 4.4 installer worked out fine.

It would be nice if you could mention this in your
installation notes (or rework the installer for future 
releases), because I spent a huge amount of time in 
detaching and replacing my SCSI hardware with ATAPI 
hardware to figure out this problem.

regards,

Wolfram Kraushaar
Comment 4 piechota 2002-01-14 22:03:56 UTC 
I wanted to add that I have an IBM Thinkpad 390X that has this same
problem.  Unfortuantely, the IBM BIOS does not have the option to Assign
IRQ to USB, as is mentioned in one of the followups.  We're going to try a
4.3-install disk tomorrow to see what the results are.

-- 
Matt Piechota
Comment 5 Ceri Davies freebsd_committer freebsd_triage 2002-08-29 21:49:57 UTC 
State Changed
From-To: feedback->analyzed

The situation is resolved, it just needs adding to the documentation.
Comment 6 Ceri Davies freebsd_committer freebsd_triage 2002-08-29 21:49:57 UTC 
Responsible Changed
From-To: freebsd-bugs->ceri

I'll look into it.
Comment 7 Ceri Davies freebsd_committer freebsd_triage 2003-01-23 23:37:13 UTC 
Responsible Changed
From-To: ceri->freebsd-doc

Throw this back to the doc team at large.
Comment 8 John Baldwin freebsd_committer freebsd_triage 2004-01-06 22:26:49 UTC 
State Changed
From-To: analyzed->closed

The problem reported will not occur on 5.x releases of FreeBSD and probably 
recent 4.x releases as they support PCI interrupt routing which fixes this 
hang.