Minikube: Error Provisioning VM: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain

[chrisalex2]

Environment:

Minikube version: v0.28.0

• OS : Windows 10
• VM Driver: hyperv

What happened: Starting minikube with v0.28.0 throws the following error:

E0614 17:09:30.577303 1732 start.go:174] Error starting host: Error creating host: Error executing step: Provisioning VM.
: Temporary Error: provisioning: error getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [publickey none], no supported methods remain
Temporary Error: provisioning: error getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain

What you expected to happen: minikube to start correctly

How to reproduce it (as minimally and precisely as possible):
minikube start --vm-driver hyperv --hyperv-virtual-switch "Primary Virtual Switch" --cpus 3 --memory 4096

Output of minikube logs (if applicable):
F0614 17:18:44.984795 16020 logs.go:50] Error getting cluster bootstrapper: getting kubeadm bootstrapper: getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain

Anything else do we need to know:

I have tried the latest version on two different computers running different versions of Windows 10 and both get the same issue. If I downgrade to v0.27.0 then it starts up fine.

[ch-abrandt]

I'm having the same exact issue on OSX 10.13.5

Same log entry:
F0614 10:19:33.601098 44519 logs.go:50] Error getting cluster bootstrapper: getting kubeadm bootstrapper: getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain

And then once it's done hanging, it gives this error and retries:
E0614 10:21:28.061729 44295 start.go:168] Error starting host: Temporary Error: Error configuring auth on host: OS type not recognized.

[ch-abrandt]

My issue was fixed by upgrading to the latest version of Virtual Box and removing ~/.minikube, then running minikube start.

[yokodev]

Ubuntu 16.04 here, same issue... had to:

**1. Upgrade VBox

1. Delete minikube VM
2. Delete ~/.minikube**

[Arnavion]

I placed the path of a native ssh binary in PATH (ssh.exe of git bash) so that minikube uses that instead of its "native Go" SSH implementation, and I have no problems. Something must be busted with the native Go implementation.

[F21]

Same issue as @chrisalex2 on Windows 10 64-bit (April Update with latest update).

$ minikube start
Starting local Kubernetes v1.10.0 cluster...
Starting VM...
E0621 09:58:11.754507    8344 start.go:168] Error starting host: Error creating host: Error executing step: Provisioning VM.
: Temporary Error: provisioning: error getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remainTemporary Error: provisioning: error getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain
Temporary Error: provisioning: error getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain
Temporary Error: provisioning: error getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [publickey none], no supported methods remain
Temporary Error: provisioning: error getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain.

 Retrying.
E0621 09:58:11.761506    8344 start.go:174] Error starting host:  Error creating host: Error executing step: Provisioning VM.
: Temporary Error: provisioning: error getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remainTemporary Error: provisioning: error getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain
Temporary Error: provisioning: error getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain
Temporary Error: provisioning: error getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [publickey none], no supported methods remain
Temporary Error: provisioning: error getting ssh client: Error dialing tcp via ssh client: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain
================================================================================
An error has occurred. Would you like to opt in to sending anonymized crash
information to minikube to help prevent future errors?
To opt out of these messages, run the command:
        minikube config set WantReportErrorPrompt false
================================================================================

Problem persists after deleting .minikube and starting from scratch.

[shays10]

Same issue here. Deleting .minikube didn't help.

I had to run docker-machine ls and then docker-machine rm <your machine name>
Only then minikube start worked properly without crashing on the ssh error

[srflaxu40]

Yep, same here. Workaround? Can I at least use an older version?

Get lots of ssh handshake errors in spite of openssh being installed. Setup hyperv with the primary network switch as rec'ed in the install documentation.

This is the command I run:

minikube start --vm-driver hyperv --hyperv-virtual-switch "Primary Virtual Switch" --kubernetes-version=v1.8.0 --extra-config=apiserver.Authorization.Mode=RBAC --memory=4096 --cpus=4 --v=7

Never runs.

[F21]

@srflaxu40 I downgraded to 0.27.0 to get it working in the meantime.

[ShiningRush]

@F21 It works for my on win10.

[ducminhn]

Yep, downgrade to 0.27 works for me as well.

[stefanjarina]

I can also confirm. Had the same error with ssh handshake on
Windows 10 Pro 1803 (OS build 17134.228) with Hyper-V

Command used:
minikube start --vm-driver="hyperv" --memory=4096 --cpus=4 --hyperv-virtual-switch="External" --v=7 --alsologtostderr
Initial version: 0.28.2
Tried the following (removed .minikube and .kube between the steps):

remove optional windows openssh -> didn't work
install openssh via chocolate -> didn't work
Downgrading to version 0.27 using the built in ssh go iplmenetation -> didn't work
Downgrading to 0.27 using the optional windows openssh -> didn't work
Downgrading to 0.27 using the OpenSSH 7.7.2.1 from chocolatey --> THIS WORKED!

Seems like there is serious bug in 0.28 version.

[m1o1]

I found that I can start minikube with 0.28.2 but I need to tinker with various settings and try a couple of times to get it working.

• I need to run it from the same drive as my user profile (C:)
• I found that if I set the memory to 4096, it fails more often than if I set it to something lower
• When I start it, I keep an eye on the VM from the hyperv manager, and if I ever see the memory jump from what I set it to (like 4096) to something lower (like 796), I can confidently say it will fail so I stop it, delete it, and try again. Sometimes it works the next time. Closing programs seems to help (even though I'm nowhere near max RAM usage)
• If I move networks (switching from Wi-Fi to Ethernet for example), my connection to the cluster breaks - so I need to delete and recreate my cluster whenever I switch (or my comp goes to sleep) - this is less relevant for starting, but I get the ssh handshake fail on an existing cluster when this happens

[tstromberg]

Closing as dupe of #2776 - this seems to be an ssh authentication issue rather than a networking issue.

@davidovich mentioned to me that he suspects a data race in https://github.com/docker/machine/blob/6c90ba4d3da9a37ebc15c4c65d61479db075fca5/libmachine/ssh/keys.go#L57 - which apparently does not close files properly.

[ChabaOk]

In Hyper-V on Windows Server 2016,
I run this command > _minikube start --vm-driver hyperv --hyperv-virtual-switch "VirtualSwitch-External"_
And get this error.

_Error dialing TCP: ssh: handshake failed: ssh: unable to authenticate, attempted methods [publickey none], no supported methods remain_

From recommendation in above, I found my version is 0.30 and I have _rolled back to 0.27._ The problem has resolved.

[davidovich]

please see #3195 as this is likely the problem fix.

[jeetwide]

I can also confirm. Had the same error with ssh handshake on
Windows 10 Pro 1803 (OS build 17134.228) with Hyper-V

Command used:
minikube start --vm-driver="hyperv" --memory=4096 --cpus=4 --hyperv-virtual-switch="External" --v=7 --alsologtostderr
Initial version: 0.28.2
Tried the following (removed .minikube and .kube between the steps):

remove optional windows openssh -> _didn't work_
install openssh via chocolate -> _didn't work_
Downgrading to version 0.27 using the built in ssh go iplmenetation -> _didn't work_
Downgrading to 0.27 using the optional windows openssh -> _didn't work_
Downgrading to 0.27 using the OpenSSH 7.7.2.1 from chocolatey --> THIS WORKED!

Seems like there is serious bug in 0.28 version.

Hi. Can you please help me how do I downgrade it,.

Basically I need to do RnD on kubernetes and docker at local Windows 10 pro PC, so I am installing docker and kubernetes with hyper-v. With VirtualBox kubernetes is working fine but I unable to work on docker in that case.

I have done following things

choco uninstall minikube
choco install minikube --version 0.27.0 --allow-downgrade

After these & deleting .minikube & .kube directory, when I enter minikube version it still says
minikube version: v0.28.2

Any help will be highly appreciated.