[CentOS-virt] virsh error: driver is not whitelisted

Wed Apr 19 16:52:42 UTC 2017
Johnny Hughes <johnny at centos.org>

On 04/19/2017 10:00 AM, Marco Aurelio L. Gomes wrote:
> Hi,
> I'm using virsh to instance a VM in my environment, but I'm running on
> some issues. 

> I got the following error:
> error: Failed to create domain from domain.xml
> error: internal error: qemu unexpectedly closed the monitor:
> 2017-04-17T17:00:37.012369Z qemu-kvm: -drive
> file=fat:/usr/src/dpdk-stable-16.11.1,if=none,id=drive-virtio-disk1,readonly=on:
> Driver 'vvfat' is not whitelisted
> If I comment the disk that cause this error, the instance starts without
> error. Is there a way to whitelist this vvfat driver to instance this VM?
> And the strange thing about this error is that when I check the
> available drives, there is vvfat in the list:
> /usr/libexec/qemu-kvm -drive format=?
> Supported formats: ftps http null-aio null-co file quorum blkverify
> vvfat blkreplay qed raw qcow2 bochs dmg vmdk parallels vhdx vpc https
> sheepdog host_cdrom ssh host_device nbd gluster qcow iscsi rbd tftp ftp
> vdi blkdebug luks cloop
> Here some information about the environment:
> cat /etc/redhat-release
> CentOS Linux release 7.3.1611 (Core)
> virsh --version
> 2.0.0
> /usr/libexec/qemu-kvm --version
> QEMU emulator version 2.6.0 (qemu-kvm-ev-2.6.0-28.el7_3.6.1), Copyright
> (c) 2003-2008 Fabrice Bellard
> Thanks in advance for the help

If you look here:


The things supported by qemu-img and qemu are not necessarily the same.

If you look at the last qemu-kvm.spec file, you can see what is set to
rw and ro:




So, those listed files are the only ones that will work.

You would need to recompile the qemu-kvm RPMs after modifying those
whitelist lines in the spec file if you want to add things to the whitelist.

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