Arch Linux

Lyralei

Member

Registered: 2021-04-07

Posts: 5

[Solved] Sharing folder between host(arch) and guest(manjro)

I wish to share a folder, so I created a directory, Shared, in downloads and gave it chmod 777 permissions.

 chmod 777 -R Shared 

Then, I updated the samba config in /etc/sambo/smb.conf

[global]
        server role = standalone server
        map to guest = bad user
        usershare allow guests = yes
        hosts allow = 192.168.0.0/16
        hosts deny = 0.0.0.0/0

[Shared]
        comment = shared folder attempt
        path = /home/special/Downloads/Shared
        read only = no
        public = yes
        valid users = special
        guest ok = yes

And reloaded the samba services,

 systemctl restart smb 

The VM works fine, but as soon as I add a file system in virt-manager I get an error, that the permissions to the Shared folder is denied.

Error starting domain: internal error: process exited while connecting to monitor: 2021-04-09T07:15:59.964600Z qemu-system-x86_64: -device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=/shared,bus=pci.7,addr=0x0: cannot initialize fsdev 'fsdev-fs0': failed to open '/home/special/Downloads/Shared': Permission denied

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 65, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 101, in tmpcb
    callback(*args, **kwargs)
  File "/usr/share/virt-manager/virtManager/object/libvirtobject.py", line 57, in newfn
    ret = fn(self, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/object/domain.py", line 1329, in startup
    self._backend.create()
  File "/usr/lib/python3.9/site-packages/libvirt.py", line 1353, in create
    raise libvirtError('virDomainCreate() failed')
libvirt.libvirtError: internal error: process exited while connecting to monitor: 2021-04-09T07:15:59.964600Z qemu-system-x86_64: -device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=/shared,bus=pci.7,addr=0x0: cannot initialize fsdev 'fsdev-fs0': failed to open '/home/special/Downloads/Shared': Permission denied

This is the config of the file system in virt manager:

<filesystem type="mount" accessmode="mapped">
  <source dir="/home/special/Downloads/Shared"/>
  <target dir="/shared"/>
  <address type="pci" domain="0x0000" bus="0x07" slot="0x00" function="0x0"/>
</filesystem>

I have seen a lot of posts about this, but non of the solutions worked.

I have noticed that in the settings for the VM, I don't have "Driver" option, under file system and cannot figure out how to enable that.

***Work around***
I followed the steps for QEMU on the following page and I can at least copy files between image and Host machine, when Image is not running.
https://www.xmodulo.com/mount-qcow2-dis … linux.html

***Solution***
https://github.com/jedi4ever/veewee/issues/996

had to add/change the following in etc/libvirt/qemu.conf

user = "special"
group = "special"

Last edited by Lyralei (2021-04-10 11:16:15)

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 15,350

Re: [Solved] Sharing folder between host(arch) and guest(manjro)

I assume special is NOT the user running  the VM ?

please post the output of

$ ls -l /home /home/special /home/special/Downloads /home/special/Downloads/Shared

---

Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

clean chroot building not flexible enough ?
Try clean chroot manager by graysky

Awebb

Member

Registered: 2010-05-06

Posts: 6,688

Re: [Solved] Sharing folder between host(arch) and guest(manjro)

How does that even work together?

        valid users = special
        guest ok = yes

Lyralei

Member

Registered: 2021-04-07

Posts: 5

Re: [Solved] Sharing folder between host(arch) and guest(manjro)

Okay, I fount the solution.
https://github.com/jedi4ever/veewee/issues/996

had to add/change the following in etc/libvirt/qemu.conf

user = "special"
group = "special"

Many thanks!

Last edited by Lyralei (2021-04-10 11:15:59)

Lyralei

Member

Registered: 2021-04-07

Posts: 5

Re: [Solved] Sharing folder between host(arch) and guest(manjro)

How does that even work together?

        valid users = special
        guest ok = yes

I tried all the configs, one but one.
first it was only valid users, then I say a config in which they had the guest line, so I added it and updated samba, it didn't showed any errors.
But I found a solution anyway. Thanks for the reply!