Krister Joas wrote:
> Hello.
> 
> I have a machine at home on which I have SXCE B96 installed on a root  
> zpool mirror.  It's been working great until yesterday.  The root pool  
> is a mirror with two identical 160GB disks.  The other day I added a  
> third disk to the mirror, a 250 GB disk.  Soon after, the third disk  
> developed some hardware problem and this is now preventing the system  
> from booting from the root pool.  It panics early on and reboots.
> 
> I'm trying to repair the system by dropping into single user mode  
> after booting from a DVD-ROM.  I had to yank the third disk in order  
> for the machine to boot successfully at all.  However, in single user  
> mode I'm so far unable to do anything useful with the pool.  Using  
> "zpool import" the pool is listed as being DEGRADED, with one device  
> being UNAVAILABLE (cannot open).  The pool is also shown to be last  
> accessed by another system.  All this is as expected.  Any command  
> other than "zpool import" knows nothing about the pool "rpool", e.g.  
> "zpool status".  Assuming I have to import the pool before doing  
> anything like detaching any bad devices I try importing it using  
> "zpool import -f rpool".  This displays an error:
> 
>      cannot import 'rpool': one or more devices is currently unavailable
> 
> At this point I'm stuck.  I can't boot from the pool and I can't  
> access the pool after booting into single user mode from a DVD-ROM.   
> Does anyone have any advice on how to repair my system?
> 
> Krister
> 
> _______________________________________________
> zfs-discuss mailing list
> zfs-discuss@opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Krister,

When you boot off of the DVD, there should be an option to go into 
single-user shell. This will search for root instances. Does this get 
displayed?

Once you get to the DVD shell prompt, can you try to run 'zpool import 
-F rpool'?

thanks,
George
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