Proxmox Mount SMB/CIFS/SAMBA
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1) Mount manually in proxmox
sudo mount -t cifs -o username=MyUserName -o ro //192.168.1.XX/ShareName /mnt/pve/ShareName
2) Then attach to your VM
pct set 103 -mp1 /mnt/pve/ShareName,mp=/mnt/ShareName
(note, you may need to install cifs-utils and smbclient in proxmox first...)
:boom: