LinuxQuestions.org - [SOLVED] qemu-kvm permission for partition disk

- Linux - Virtualization and Cloud (https://www.linuxquestions.org/questions/linux-virtualization-and-cloud-90/)

- - qemu-kvm permission for partition disk (https://www.linuxquestions.org/questions/linux-virtualization-and-cloud-90/qemu-kvm-permission-for-partition-disk-4175531592/)

qemu-kvm permission for partition disk

I'd like to use a qemu-kvm image of Slackware Linux OS, so that user data (/home) is read/written directly from a disk partition.

The command I built is (simplified):

Code:

qemu-kvm -enable-kvm -hda slack1.qcow2 -hdb slack_swap.qcow2 -drive file=/dev/sda,media=disk,index=3

But there's an error message:

Code:

could not open disk image /dev/sda: Permission denied

There are two workarounds that I could use:
- issue the qemu-kvm command as root
- add my user to the disk group

The second option seems less insecure than the first option.
Is there any other way of doing this?

In motherboards with VT-d, can this problem be solved differently?

Just make you the owner of sda block device. Udev rules script can be adjusted to just make your user as owner of it.