On 2014-10-30 16:12, Andrea Brancatelli wrote:
> Hello guys.
> 
> I had some wonderfully working machines with bhyve with a plain 10.0-p4. I 
> just upgraded to 10.1-RC3 and now the VMs won’t boot anymore: they get just 
> stuck with "unable to load kernel”. After some trials and errors I think I 
> traced it to user boot getting confused by a ZFS partition inside the VM.
> 
> I did some experiments with set currdev and got the kernel loaded but then 
> the machine just hangs.
> 
> Please give me some advice :-)
> 
> Here’s a capture of the machine and what i did to get it working. Any idea is 
> welcome. Thanks
> 
> ====
> 
> STARTING VM...
> Consoles: userboot
> 
> FreeBSD/amd64 User boot, Revision 1.1
> (r...@releng1.nyi.freebsd.org, Tue Oct 21 23:49:55 UTC 2014)
> -
> can't load 'kernel'
> 
> Type '?' for a list of commands, 'help' for more detailed help.
> OK lsdev
> host devices:
>     host0:   Host filesystem
> disk devices:
>     disk0:   Guest drive image
>       disk0p1: FreeBSD boot
>       disk0p2: FreeBSD UFS
>       disk0p3: FreeBSD swap
>       disk0p4: FreeBSD ZFS
> zfs devices:
>     zfs:repository
> OK show
> LINES=24
> boot_serial=1
> console=userboot
> currdev=zfs:repository:
> interpret=OK
> loaddev=zfs:repository:
> prompt=${interpret}
> smbios.bios.vendor=BHYVE
> OK set currdev=disk0p2:
> OK set rootdev=disk0p2:
> OK boot
> /boot/kernel/kernel text=0xed9008 data=0x117d28+0x176650 
> syms=[0x8+0x137988+0x8+0x1515f8]
> \
> =====
> 
> -------
> Andrea Brancatelli
> 
> 
> 
> 
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> 

Is the disk for this VM a ZFS zvol?

You might need to set the 'vol mode' to make GEOM not steal the disk.

-- 
Allan Jude

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