The tramp refuses to start after making some changes to the network, I received the following:
$ vagrant up default: Warning: Connection timeout. Retrying... default: Warning: Remote connection disconnect. Retrying... default: Warning: Remote connection disconnect. Retrying... default: Warning: Remote connection disconnect. Retrying... default: Warning: Remote connection disconnect. Retrying...
I tried to fix this by restarting the service (which failed), which led to this:
$ vagrant up Bringing machine 'default' up with 'virtualbox' provider... ==> default: Checking if box 'ubuntu/trusty64' is up to date... ==> default: Clearing any previously set network interfaces... There was an error while executing `VBoxManage`, a CLI used by Vagrant for controlling VirtualBox. The command and stderr is shown below. Command: ["hostonlyif", "create"] Stderr: 0%... Progress state: NS_ERROR_FAILURE VBoxManage: error: Failed to create the host-only adapter VBoxManage: error: VBoxNetAdpCtl: Error while adding new interface: failed to open /dev/vboxnetctl: No such file or directory VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component HostNetworkInterface, interface IHostNetworkInterface VBoxManage: error: Context: "int handleCreate(HandlerArg*, int, int*)" at line 66 of file VBoxManageHostonly.cpp
Others recommended restarting the VirtualBox service, but this also failed;
✗ sudo "/Library/Application Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh" restart Unloading VBoxDrv.kext (kernel) Can't remove kext org.virtualbox.kext.VBoxDrv; services failed to terminate - 0xe00002c7. Failed to unload org.virtualbox.kext.VBoxDrv - (iokit/common) unsupported function. Error: Failed to unload VBoxDrv.kext Fatal error: VirtualBox
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