[libvirt] Using Restore in another host.

[Marcela Castro León]

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>

> 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 -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    +1-801-349-2682
> Libvirt virtualization library http://libvirt.org
>
>
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