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Re: [Qemu-devel] Fwd: Problem booting 32 bit guest on 64 bit host using


From: Gleb Natapov
Subject: Re: [Qemu-devel] Fwd: Problem booting 32 bit guest on 64 bit host using kvm
Date: Tue, 1 Jan 2013 13:30:19 +0200

On Tue, Jan 01, 2013 at 09:17:52PM +1000, Mark Blakeney wrote:
> Linux pc 3.7.0-7-generic #15-Ubuntu SMP Sat Dec 15 16:34:25 UTC 2012
> x86_64 x86_64 x86_64 GNU/Linux (Ubuntu version 3.7.0.7.11)
> 
> I am using xorg edgers on Ubuntu 12.10 because I have a brand new box
> and have been seeing graphics issues so trying latest drivers.
> However, I am fairly sure I tried booting that qemu image on the stock
> Ubuntu kernel (3.5.0.21.27) with the same result.
> 
So is there kernel that works, or kvm never worked for this image?

> --
> Mark Blakeney.
> 
> 
> On Tue, Jan 1, 2013 at 8:08 PM, Gleb Natapov <address@hidden> wrote:
> > On Tue, Jan 01, 2013 at 11:17:52AM +1000, Mark Blakeney wrote:
> >> Hi, I am inexperienced using QEMU and hoping somebody here can help me.
> >>
> >> Some time ago I cloned a disk image of an old Solaris legacy system and was
> >> able to successfully boot and use it within QEMU. Recently I upgraded my
> >> host from i386 Ubuntu 12.04 to a new box running x86_64 Ubuntu 12.10. Now I
> >> find that the same qemu command line results in that guest failing to boot
> >> with a "no active boot partition" error message.
> >>
> >> The command I have been using is:
> >>
> >> qemu-system-i386 \
> >>   -machine pc,accel=kvm \
> >>   -m 256M \
> >>   -vga std \
> >>   -net nic,vlan=1,model=pcnet \
> >>   -net user,vlan=1,hostfwd=::8050-$GUEST:22 \
> >>   -hda "$DISK"
> >>
> >> I find that if I change to "accel=tcg" in above command (or add -no-kvm)
> >> then the guest will boot ok but I find my host works much harder & slower
> >> than when I use kvm. Is there a qemu option so I can use kvm but get around
> >> this guest boot issue?
> >>
> > What is your kernel version?
> >
> > --
> >                         Gleb.

--
                        Gleb.



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