Share Host Folder with Guests in VirtManager

Share Host Folder with Guests in VirtManager.md

Share Host Folder with Guests in VirtManager

In VirtManager, in "show virtual hardware details":

0. In "Memory", check "Enable shared memory";
1. Press the button "Add hardware";
2. In "File system":
   • Driver: virtiofs
     • if an error blocks the vm boot, use "virtio-9p" here and use Type=9p in the file mnt-shared.mount.
   • Source path: /shared (this value is the name of the host folder)
   • Target path: /shared (this value will be used in the file mnt-shared.mount)

In the host, create a folder to be shared with all guests:

sudo mkdir /shared
sudo chmod a+w /shared

In each guest, create a folder to be mapped with the host folder:

sudo apt install qemu-guest-agent;
sudo mkdir /mnt/shared
cat <<EOF > /tmp/mnt-shared.mount
[Unit]
Description=Ponto de montagem '/mnt/shared' para VirtManager Guest

[Mount]
What=/shared
Where=/mnt/shared
Type=virtiofs
Options=defaults,rw,noatime

[Install]
WantedBy=multi-user.target
EOF
sudo mv /tmp/mnt-shared.mount /etc/systemd/system/mnt-shared.mount
sudo systemctl enable mnt-shared.mount
sudo systemctl start mnt-shared.mount
# reboot

The end.