Unable to create Host-Only Ethernet Adapter on virtualbox during mirantis9.0 installation using launch.sh

[Lakshmi Narayanan G.]

Detailed bug description:
Unable to create Host-Only Ethernet Adapter on virtual box during mirantis9.0 installation using launch.sh[located under virtualbox scripts].

Configuration used:

 -Windows 10[10.0.10586 N/A Build 10586]
 -VirtualBox 5.1.12/5.0.16/5.0.18 & corresponding Extension Pack as well.
 -Cygwin x64
 -Mirantis OpenStack 9.0 + 9.0 VirtualBox Scripts

Steps to reproduce:
https://docs.mirantis.com/openstack/fuel/fuel-9.0/quickstart-guide.html#introduction

Expected results:
Fuel VM and 3 additional VMs running in VirtualBox.

Actual result:

$ ./launch.sh
./functions/shell.sh: line 75: warning: command substitution: ignored null byte in input
Prepare the host system...
Checking for 'dumpkeys.cache'... OK
Checking for 'free'... OK
Checking for 'expect'... OK
Checking for 'xxd'... OK
Checking for 'VBoxManage'... OK
Checking for VirtualBox Extension Pack... OK
Checking for VirtualBox iPXE firmware...SKIP
VirtualBox iPXE firmware is not found. Used standard firmware from the VirtualBox Extension Pack.
Checking for Mirantis OpenStack ISO image... OK
Going to use Mirantis OpenStack ISO file: iso/MirantisOpenStack-9.0.iso
Checking if SSH client installed... OK
Checking if ipconfig or ifconfig installed... OK
Done.

Check available memory on the host system...
Done.

Сlean previous installation if exists...
Done.

Deleting old interfaces if exists...
...eting host-only interface: VirtualBox Host-Only Ethernet Adapter
' could not be foundr: The host network interface named 'VirtualBox Host-Only Ethernet Adapter
VBoxManage.exe: error: Details: code E_INVALIDARG (0x80070057), component HostWrap, interface IHost, callee IUnknown
VBoxManage.exe: error: Context: "FindHostNetworkInterfaceByName(Bstr(pszName).raw(), hif.asOutParam())" at line 113 of file VBoxManageHostonly.cpp
" was not removed. Aborting...x Host-Only Ethernet Adapter

Reproducibility:
 100%. This issue was initially reported by a customer, and I was able to reproduce this in a fresh Windows 10[] installation.

Workaround:
 Unknown

Impact:
 Unable to create virtualbox VMs with scripts.

Description of the environment:
  Operation system: Windows 10
  Versions of components: VirtualBox 5.1.12/5.0.16/5.0.18 & corresponding Extension Pack.
  Reference architecture: N/A
  Network model: N/A
  Related projects installed: N/A

Additional information:

After removing the existing "Virtual host-only Ethernet Adapter" - observing the fatal error.,

$ ./launch.sh
./functions/shell.sh: line 75: warning: command substitution: ignored null byte in input
Prepare the host system...
Checking for 'dumpkeys.cache'... OK
Checking for 'free'... OK
Checking for 'expect'... OK
Checking for 'xxd'... OK
Checking for 'VBoxManage'... OK
Checking for VirtualBox Extension Pack... OK
Checking for VirtualBox iPXE firmware...SKIP
VirtualBox iPXE firmware is not found. Used standard firmware from the VirtualBox Extension Pack.
Checking for Mirantis OpenStack ISO image... OK
Going to use Mirantis OpenStack ISO file: iso/MirantisOpenStack-9.0.iso
Checking if SSH client installed... OK
Checking if ipconfig or ifconfig installed... OK
Done.

Check available memory on the host system...
Done.

Сlean previous installation if exists...
Done.

Deleting old interfaces if exists...
Done.

Creating host-only interface...
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
Fatal error. Interface VirtualBox Host-Only Ethernet Adapter does not exist after creation. Exiting

[Lakshmi Narayanan G. (lakshminarayanang)]

Could anyone from the Fuel team, can help me here for the fix??

[Oleksiy Molchanov (omolchanov)]

We are not planning to fix this bug.

[dubis (dubois-michel)]

Hi Same Problem on Cygwin Windows:

./launch.sh
Prepare the host system...
./functions/shell.sh: line 28: nproc: command not found
./config.sh: line 69: [: : integer expression expected
Checking for 'dumpkeys.cache'... OK
Checking for 'free'... OK
Checking for 'expect'... OK
Checking for 'xxd'... OK
Checking for 'VBoxManage'... OK
Checking for VirtualBox Extension Pack... OK
Checking for VirtualBox iPXE firmware...SKIP
VirtualBox iPXE firmware is not found. Used standard firmware from the VirtualBox Extension Pack.
Checking for Mirantis OpenStack ISO image... OK
Going to use Mirantis OpenStack ISO file: iso/MirantisOpenStack-9.0.iso
Checking if SSH client installed... OK
Checking if ipconfig or ifconfig installed... OK
Done.

Check available memory on the host system...
./functions/shell.sh: line 28: nproc: command not found
./config.sh: line 69: [: : integer expression expected
Done.

Сlean previous installation if exists...
./functions/shell.sh: line 28: nproc: command not found
./config.sh: line 69: [: : integer expression expected
Done.

./functions/shell.sh: line 28: nproc: command not found
./config.sh: line 69: [: : integer expression expected
Deleting old interfaces if exists...
Done.

Creating host-only interface...
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
Fatal error. Interface VirtualBox Host-Only Ethernet Adapter does not exist after creation. Exiting