-virtual kernel does not have aufs filesystem

aufs filesystem is generally useful even within virtual environments.
It should not be filtered out.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-3.0.0-10-virtual 3.0.0-10.16
ProcVersionSignature: User Name 3.0.0-10.16-virtual 3.0.4
Uname: Linux 3.0.0-10-virtual x86_64
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 2011-09-07 18:32 seq
 crw-rw---- 1 root audio 116, 33 2011-09-07 18:32 timer
AplayDevices: Error: [Errno 2] No such file or directory
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CurrentDmesg: [ 13.970118] eth0: no IPv6 routers present
Date: Wed Sep 7 18:35:53 2011
Ec2AMI: ami-00000080
Ec2AMIManifest: FIXME
Ec2AvailabilityZone: nova
Ec2InstanceType: m1.small
Ec2Kernel: unavailable
Ec2Ramdisk: unavailable
Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: Bochs Bochs
PciMultimedia:

ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-10-virtual root=LABEL=cloudimg-rootfs ro console=ttyS0
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/01/2007
dmi.bios.vendor: Bochs
dmi.bios.version: Bochs
dmi.chassis.type: 1
dmi.chassis.vendor: Bochs
dmi.modalias: dmi:bvnBochs:bvrBochs:bd01/01/2007:svnBochs:pnBochs:pvr:cvnBochs:ct1:cvr:
dmi.product.name: Bochs
dmi.sys.vendor: Bochs