mount: Error finding IPV4 address for VirtualBox Host-Only Ethernet Adapter

[spawnia]

Bug Report

Please provide the following details:

Environment:

Minikube version (use minikube version): v0.24.1

• OS (e.g. from /etc/os-release): Windows 10 Home x64
• VM Driver (e.g. cat ~/.minikube/machines/minikube/config.json | grep DriverName): virtualbox (v5.2.6)
• ISO version (e.g. cat ~/.minikube/machines/minikube/config.json | grep -i ISO or minikube ssh cat /etc/VERSION): v0.23.6
• Install tools: Installed via choco

What happened:
I tried mounting a folder from my host machine into minikube via minikube mount C:\Users\Benedikt\projects\:/projects

This failed with the following error message:

E0121 16:05:59.868890    6556 mount.go:113] Error getting the host IP address to use from within the VM:  Error getting VM/Host IP address: Error finding IPV4 address for VirtualBox Host-Only Ethernet Adapter #4

I then followed the workaround mentioned in #1473 and renamed the Network Interface according to what the error output showed. After this, i could correctly mount the folder and access the files from within minikube.

What you expected to happen:
The mount correctly executes and my host files are available in Minikube.

How to reproduce it (as minimally and precisely as possible):
Try mounting a volume into minikube with virtualbox provider.

[fejta-bot]

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[spawnia]

/remove-lifecycle stale

[cscetbon]

I have a similar issue with minikube 0.28.0 using VirtualBox :

minikube mount /Users:/Users
Mounting /Users into /Users on the minikube VM
This daemon process needs to stay alive for the mount to still be accessible...
ufs starting
running mount host command: ssh command error:
command :
sudo mkdir -p /Users || true;
sudo mount -t 9p -o trans=tcp,port=54230,dfltuid=1001,dfltgid=1001,version=9p2000.u,msize=262144 192.168.99.1 /Users;
sudo chmod 775 /Users;
err     : Process exited with status 1
output  : chmod: changing permissions of '/Users': Input/output error

By default /Users is a shared folders the virtualbox settings of the minikube VM, however I can't find it on the VM root system

[snfaucher]

Had this exact problem & I solved it by changing the Promiscuous mode to "Allow VMs" on Virtualbox

1. Open Virtualbox
2. Locate minikube VM
3. open Settings
4. go to Network tab
5. Locate the right Adapter then select Advanced -> Promiscuous mode to : Allow VMs
   

[cscetbon]

It does not solve my issue :(

[snfaucher]

@cscetbon just realized there is one step missing...

After configuring the Promiscuous mode to Allow VMs,
6. find the IP address of the attached Virtualbox Adapter (e.g. using ipconfig) and then, do

minikube mount --ip <ip-of-attached-interface> c://Users//git//nice-project:/data/nice-project

[cscetbon]

I'm playing a lot with minikube, creating new instances with a different version of k8s each time. This really looks like a bug if we need to do so.