Re: [Xen-users] Problems with p2v / HVM not booting

[Jan Hejl <jh@xxxxxxxxxx>]

Hi Andreas,

did you install bootloader during domU system installation?

Jan

On 12/28/2012 01:00 PM, Andreas Hilboll wrote:
> Hi,
>
> I need to do some p2v migration of a very old SuSE server.
> Unfortunately, the kernel of that machine doesn't support running as xen
> domU, so I need to put the machine into a HVM domU.
>
> Using help from this list, I managed to access the individual HVM guest
> disk's partitions from the dom0 using kpartx. What I did:
>
> * create a LV /dev/vg_guest/worker1_disk
> * create two partisions on top of /dev/vg_guest/worker1_disk, using
>    fdisk, setting the bootable flag on the first partition
> * using kpartx to access the individual partitions, I ran mkfs.ext3 on
>    the first partition and mkswap on the second partition.
> * I rsync'ed the contents of the physical server's filesystem to the
>    first partition
>
> When I now try to boot the HVM machine, I can connect via VNC, however
> the system doesn't boot properly: On the VNC screen, I can see "Booting
> from hard disk ...", and nothing happens. "xm top" on the dom0 shows
> 100% CPU and 34% RAM usage for the domU. I'm somewhat at a loss here ...
>
> Any help is greatly appreciated =)
>
> Cheers, Andreas.
>
>
> PS: When I "plug in" a Ubuntu live CDROM into the domU's config, I can
> boot the system. However I noticed that the two partitions show up as
> /dev/xvda[12], even though I specified "hda" in the domU's config:
>
>     kernel = "/usr/lib/xen-4.0/boot/hvmloader"
>     builder='hvm'
>     vcpus=3
>     memory = 8192
>     shadow_memory = 8
>     name        = 'hvmtest'
>     vif = ['type=ioemu,bridge=xenbr0']
>     acpi = 1
>     apic = 1
>     disk        = [ 'phy:/dev/vg_guest/worker1_disk,hda,w',
>
> 'file:/home/hilboll/ubuntu-12.04.1-server-amd64.iso,ioemu:hdc:cdrom,r', ]
>     device_model = '/usr/lib64/xen/bin/qemu-dm'
>     boot="c"  # boot on floppy (a), hard disk (c) or CD-ROM (d)
>     sdl=0
>     vnc=1
>     vncdisplay=1
>     vfb = ['type=vnc']
>
>
>
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