[libvirt] Using Restore in another host.

[Michal Novotny]

Hi,
I think the best thing would be to download it directly from libvirt.org
site and install it. It's not the easiest way but it's the best way IMHO.

You can find relevant information there:

http://libvirt.org/compiling.html

Michal

On 04/08/2011 10:18 AM, Marcela Castro León wrote:
> Hello
> I'm thinking to upgrade the libvirt to solve the problem as you said
> in your last mail.
> But I've installed the package using "apt-get install" and I can''t
> get higher version of all the packages involves doing an upgrade in
> ubuntu (I'm using 10.04)
> Can you suggest-me "an easy" way to upgrate the libvirt? 
> Thank you very much.
> Marcela
>
>
>
> 2011/4/6 Eric Blake <eblake at redhat.com <mailto:eblake at redhat.com>>
>
>     On 04/06/2011 04:09 AM, Michal Novotny wrote:
>     > Hi,
>     > the interesting thing is the "Permission denied" message in the
>     log file:
>     >
>     > LC_ALL=C
>     > PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin
>     > QEMU_AUDIO_DRV=none /usr/bin/qemu-system-x86_64 -S -M pc-0.12
>     > -enable-kvm -m 4096 -smp 4 -name chompi1 -uuid
>     > 22f013aa-25d4-b317-9eac-b232692db8c7 -chardev
>     >
>     socket,id=monitor,path=/var/lib/libvirt/qemu/chompi1.monitor,server,nowait
>     > -monitor chardev:monitor -boot c -drive
>     >
>     file=/home/radic/mvdata/imagenes/chompi1.img,if=ide,index=0,boot=on,format=raw
>     > -drive if=ide,media=cdrom,index=2,format=raw -net
>     > nic,macaddr=52:54:00:82:ce:80,vlan=0,model=virtio,name=virtio.0 -net
>     > tap,fd=34,vlan=0,name=tap.0 -chardev pty,id=serial0 -serial
>     > chardev:serial0 -parallel none -usb -vnc 0.0.0.0:0
>     <http://0.0.0.0:0> -vga cirrus -incoming
>     > exec:cat
>     > char device redirected to /dev/pts/2
>     > cat: -: Permission denied <== THIS ONE
>     > load of migration failed
>     >
>     > I don't know much about the internal libvirt design since
>     libvirt is not
>     > my primary space so I hope my e-mails from yesterday helped a
>     little but
>     > I'll leave the rest for libvirt guys since I'm not having any other
>     > ideas what could be wrong there.
>
>     That's a weird error - cat is complaining that it can't read stdin,
>     which is usually a symptom associated with SELinux permissions.
>      But you
>     said earlier in this thread that you aren't using SELinux.  Are you
>     using AppArmor?
>
>     At any rate, does upgrading to libvirt 0.9.0 improve the situation?
>     exec: migration has always been risky (there are various data races
>     involved in coordinating multiple processes, where qemu is using
>     popen()
>     to manage the use or even opening the file), and so newer libvirt uses
>     fd: migration (where the fd is already open, so we don't even have to
>     worry about permissions from qemu's point of view).
>
>     --
>     Eric Blake   eblake at redhat.com <mailto:eblake at redhat.com>  
>      +1-801-349-2682
>     Libvirt virtualization library http://libvirt.org
>
>


-- 
Michal Novotny <minovotn at redhat.com>, RHCE
Virtualization Team (xen userspace), Red Hat