kern/148655: [zfs] Booting from a degraded raidz no longer works in 8-STABLE [regression]

Sun Aug 1 20:30:06 UTC 2010

The following reply was made to PR kern/148655; it has been noted by GNATS.

From: Scott Johnson <scottj75074 at yahoo.com>
To: bug-followup at FreeBSD.org, am at raisa.eu.org
Cc:  
Subject: Re: kern/148655: [zfs] Booting from a degraded raidz no longer works in 8-STABLE [regression]
Date: Sun, 1 Aug 2010 13:00:26 -0700 (PDT)

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 Another data point. I had a similar problem with mirrored boot disks.

 I installed 8.1-RELEASE onto two identical drives in a mirror, following the 
 "Installing FreeBSD Root on ZFS (Mirror) using GPT" guide here: 
 http://wiki.freebsd.org/RootOnZFS/GPTZFSBoot/Mirror

 I can boot from either disk by changing the boot priority in the BIOS, so long 
 as both disks are connected. I swapped the sata ports, and I can still boot from 

 either disk.

 I can disconnect drive #2 and boot from drive #1 just fine, whether drive #1 is 
 plugged into sata0 or sata1.

 However when I disconnect drive #1 and try to boot from drive #2, on either 
 sata0 or sata1, I get errors:

 error 1 lba 32
 error 1 lba 1
 error 1 lba 32
 error 1 lba 1
 error 1 lba 32
 error 1 lba 1
 error 1 lba 32
 error 1 lba 1
 error 1 lba 32
 error 1 lba 1
 error 1 lba 32
 error 1 lba 1
 No ZFS pools located, can't boot
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 <html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:12pt"><div>Another data point. I had a similar problem with mirrored boot disks.<br><br>I installed 8.1-RELEASE onto two identical drives in a mirror, following the <br>"Installing FreeBSD Root on ZFS (Mirror) using GPT" guide here: <br><a href="http://wiki.freebsd.org/RootOnZFS/GPTZFSBoot/Mirror" target="_blank"><span class="yshortcuts" id="lw_1280688999_0">http:// wiki.freebsd.org/RootOnZFS/GPTZFSBoot/Mirror</span></a><br><br>I can boot from either disk by changing the boot priority in the BIOS, so long <br>as both disks are connected. I swapped the sata ports, and I can still boot from <br>either disk.<br><br>I can disconnect drive #2 and boot from drive #1 just fine, whether drive #1 is <br>plugged into sata0 or sata1.<br><br>However when I disconnect drive #1 and try to boot from drive #2, on either <br>sata0
  or sata1, I get errors:<br><br>error 1 lba 32<br>error 1 lba 1<br>error 1 lba 32<br>error 1 lba 1<br>error 1 lba 32<br>error 1 lba 1<br>error 1 lba 32<br>error 1 lba 1<br>error 1 lba 32<br>error 1 lba 1<br>error 1 lba 32<br>error 1 lba 1<br>No ZFS pools located, can't boot<br><br></div>
 </div></body></html>
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