I am new to both erp and ErpNext and use Centos 7 VMM (not VirtualBox manager) to run ErpNext VM. Two setup notes that may help:
- To convert VirtualBox .ova to run on qemu-kvm
[clarkej@tango ERP]$ tar xvf ERPNext-190416.ova
ERPNext-190416.ovf
ERPNext-190416-disk1.vmdk
$ qemu-img convert -O qcow2 ERPNext-190416-disk1.vmdk ERPNext-190416.qcow2
inspect .ovf for machine config for eg. mem + cpu
- Bridged Network aka ‘shared physical device’ and not NAT-based virtual network default
see adamw’s notes Bridged networking for libvirt with NetworkManager: 2014 / Fedora 21 | AdamW on Linux and more