Re: misc/42889: installer nukes raid component label

[Greg Oster <oster%cs.usask.ca@localhost>]

The following reply was made to PR misc/42889; it has been noted by GNATS.

From: Greg Oster <oster%cs.usask.ca@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: misc/42889: installer nukes raid component label
Date: Mon, 1 Mar 2010 08:26:25 -0600

 On Fri, 26 Feb 2010 20:15:01 +0000 (UTC)
 jakllsch%kollasch.net@localhost wrote:
 
 > >Number:         42889
 > >Category:       misc
 > >Synopsis:       installer nukes raid component label
 > >Confidential:   no
 > >Severity:       critical
 > >Priority:       high
 > >Responsible:    misc-bug-people
 > >State:          open
 > >Class:          sw-bug
 > >Submitter-Id:   net
 > >Arrival-Date:   Fri Feb 26 20:15:00 +0000 2010
 > >Originator:     Jonathan A. Kollasch
 > >Release:        NetBSD 5.99.24 2010-02-25
 > >Organization:
 >      
 > >Environment:
 > Architecture: x86_64
 > Machine: amd64
 > >Description:
 > booting -current amd64cd destroys a marked-for-root-autoconfig component 
 > label.
 > 
 > component label dumps follow,
 > 
 > before:
 > 00004000  02 00 00 00 c8 82 ce 77  a3 03 00 00 00 00 00 00  
 > |.......w........|
 > 00004010  01 00 00 00 01 00 00 00  02 00 00 00 00 00 00 00  
 > |................|
 > 00004020  00 00 00 00 80 00 00 00  01 00 00 00 01 00 00 00  
 > |................|
 > 00004030  31 00 00 00 64 00 00 00  00 02 00 00 00 00 40 00  
 > |1...d.........@.|
 > 00004040  40 00 40 00 a3 03 00 00  03 00 00 00 40 9c 00 00  
 > |@.@.........@...|
 > 00004050  08 00 00 00 51 00 00 00  00 00 00 00 00 00 00 00  
 > |....Q...........|
 > 00004060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  
 > |................|
 > *
 > 000040c0  00 00 00 00 00 00 00 00  01 00 00 00 01 00 00 00  
 > |................|
 > 000040d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  
 > |................|
 > *
 > 00004400  01 00 00 04 02 81 e0 1a  08 04 01 00 00 00 00 00  
 > |................|
 > 00004410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  
 > |................|
 > *
 > 00004600
 > 
 > after:
 > 00004000  00 00 00 00 00 00 00 00  9c 03 00 00 00 00 00 00  
 > |................|
 > 00004010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  
 > |................|
 > *
 > 00004040  00 00 00 00 9c 03 00 00  03 00 00 00 40 9c 00 00  
 > |............@...|
 > 00004050  08 00 00 00 00 10 00 00  00 00 00 00 00 00 00 00  
 > |................|
 > 00004060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  
 > |................|
 > *
 > 00004400  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  
 > |................|
 > *
 > 00004600
 > 
 > >How-To-Repeat:
 > take a raid volume marked with 'raidctl -A root' (RAID-1, the first component
 > of my pair is absent), boot -current amd64cd, reboot before doing anything
 > significant.  note how system won't autoconfig root partition after this.
 > >Fix:
 > unknown.
 
 For the above hex output, is that the 2nd component of the RAID1 set
 used for / ?
 
 Later...
 
 Greg Oster