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Date: Sat, 22 Nov 2008 22:34:26 +0100
From: Volker Jahns <volker@thalreit.de>
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To: Bunkertor <bunkertor@tiscali.it>
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Cc: freebsd-xen@freebsd.org
Subject: Re: Root mount failed
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Bunkertor wrote:
> hi to all.
> i'm trying to install freebsd as domU on linux xen-ified kernel and i 
> followed steps suggested in this post 
> http://lists.freebsd.org/pipermail/freebsd-xen/2008-October/000009.html.
> kernel customization works with no errors, so i presume i got a valid 
> kernel for domU but when i try to start freebsd vm, this is the boot 
> output:
> ================================================================================================= 
>
> [root@bran xen]# xm create freebsd-63.py -c
> ...
> Trying to mount root from ufs:/dev/xbd1s1a
>
> Manual root filesystem specification:
>  <fstype>:<device>  Mount <device> using filesystem <fstype>
>                       eg. ufs:da0s1a
>  ?                  List valid disk boot devices
>  <empty line>       Abort manual input
>
> mountroot> ?
>
> List of GEOM managed disk devices:
>  xbd1
>
> Manual root filesystem specification:
>  <fstype>:<device>  Mount <device> using filesystem <fstype>
>                       eg. ufs:da0s1a
>  ?                  List valid disk boot devices
>  <empty line>       Abort manual input
>
> mountroot> ufs:xbd1
> Trying to mount root from ufs:xbd1
> gather xs_read xs_single /local/domain/0/backend/vbd/34/768/state 
> xs_talkv read_reply event=2 itype=2 htype=2 len=NULL
>
You might try to specify this path of root partition
--
ufs:xbd1s1a
--
where  xbd1s1 stands partition "a" on slice 1 on disk 1. The path to the 
root partition however depends on how you created your partitions at 
installation.

-- 
Volker Jahns, volker@thalreit.de