Comment 5 for bug 1676504

Any update on this?
I'm getting the exact same error with cygwin on Windows 10 x64, but still unable to find a workaround.

Also, sed and grep are up to date in respect of cygwin packages, however the script won't work.

me@NET18118 ~
$ sed --version
sed (GNU sed) 4.4
Packaged by Cygwin (4.4-1)
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Jay Fenlason, Tom Lord, Ken Pizzini,
and Paolo Bonzini.
GNU sed home page: <http://www.gnu.org/software/sed/>.
General help using GNU software: <http://www.gnu.org/gethelp/>.
E-mail bug reports to: <email address hidden>.

me@NET18118 ~
$ grep --version
grep (GNU grep) 3.0
Packaged by Cygwin (3.0-2)
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Mike Haertel and others, see <http://git.sv.gnu.org/cgit/grep.git/tree/AUTHORS>.

###
me@NET18118 /cygdrive/d/OpenStack/Mirantis Openstack/vbox-scripts-9.1
$ sh launch_8GB.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 Ex tension 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 139 of file VBoxManageHostonly.cpp
" was not removed. Aborting...x Host-Only Ethernet Adapter
###