Here's another probably related bug: https://bugzilla.redhat.com/show_bug.cgi?id=572495
I was able to revert libvirt-bin and company back to 0.7.5-6 and now pxe boot is working again. Here's the new command that was used by libvirt to start the vm: LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin HOME=/local.hd/users/bpkroth USER=root LOGNAME=root QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-0.12 -cpu qemu32 -enable-kvm -m 512 -smp 1 -name faitest32 -uuid 2b09b863-c3ca-a819-8580-4763a3fdd61d -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/faitest32.monitor,server,nowait -monitor chardev:monitor -boot ndc -drive if=ide,media=cdrom,index=2,format=raw -drive file=/home/vms/images/faitest32/faitest32.img,if=virtio,index=0,boot=on,format=raw -drive file=/home/vms/images/faitest32/faitest32-2.img,if=virtio,index=1,format=raw -net nic,macaddr=52:54:00:a1:90:92,vlan=0,model=virtio,name=virtio.0 -net tap,fd=21,vlan=0,name=tap.0 -chardev pty,id=serial0 -serial chardev:serial0 -parallel none -usb -vnc 0.0.0.0:0,tls,x509=/etc/pki/libvirt-vnc,sasl -k en-us -vga vmware -watchdog i6300esb -watchdog-action reset char device redirected to /dev/pts/7 Here's the current set of packages: $ dpkg -l | egrep -i 'libvirt|qemu|kvm' ii libvirt-bin 0.7.5-6 the programs for the libvirt library ii libvirt-doc 0.7.5-6 documentation for the libvirt library ii libvirt0 0.7.5-6 library for interfacing with different virtualization systems ii python-libvirt 0.7.5-6 libvirt Python bindings ii qemu 0.11.1-2 fast processor emulator ii qemu-kvm 0.12.3+dfsg-4 Full virtualization on x86 hardware ii qemu-system 0.11.1-2 QEMU full system emulation binaries ii qemu-user 0.11.1-2 QEMU user mode emulation binaries ii qemu-utils 0.11.1-2 QEMU utilities ii vgabios 0.6c-2 VGA BIOS software for the Bochs and Qemu emulated VGA card Thanks, Brian
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