Build 'virtualbox-iso' errored: Script disconnected unexpectedly. #18
Description
I keep getting the same error at the end of running packer. How do I fix this?
(12:02:58 <~/oraclelinux>) 0 $ packer build -var-file=ol68.json -only=virtualbox-iso oraclelinux.json
virtualbox-iso output will be in this color.
==> virtualbox-iso: Downloading or copying Guest additions
virtualbox-iso: Downloading or copying: file:///Applications/VirtualBox.app/Contents/MacOS/VBoxGuestAdditions.iso
==> virtualbox-iso: Downloading or copying ISO
virtualbox-iso: Downloading or copying: file:///Volumes/Storage/software/oraclelinux/OracleLinux-R6-U8-Server-x86_64-dvd.iso
virtualbox-iso: Error downloading: stat /Volumes/Storage/software/oraclelinux/OracleLinux-R6-U8-Server-x86_64-dvd.iso: no such file or directory
virtualbox-iso: Downloading or copying: file:///Users/redacted/Downloads/ISO/OracleLinux-R6-U8-Server-x86_64-dvd.iso
==> virtualbox-iso: Starting HTTP server on port 8697
==> virtualbox-iso: Creating virtual machine...
==> virtualbox-iso: Creating hard drive...
==> virtualbox-iso: Creating forwarded port mapping for communicator (SSH, WinRM, etc) (host port 4286)
==> virtualbox-iso: Executing custom VBoxManage commands...
virtualbox-iso: Executing: modifyvm ol68 --memory 512
virtualbox-iso: Executing: modifyvm ol68 --cpus 1
==> virtualbox-iso: Starting the virtual machine...
==> virtualbox-iso: Waiting 10s for boot...
==> virtualbox-iso: Typing the boot command...
==> virtualbox-iso: Waiting for SSH to become available...
==> virtualbox-iso: Connected to SSH!
==> virtualbox-iso: Uploading VirtualBox version info (5.1.28)
==> virtualbox-iso: Uploading VirtualBox guest additions ISO...
==> virtualbox-iso: Provisioning with shell script: script/fix-slow-dns.sh
virtualbox-iso: ==> Applying slow DNS fix
virtualbox-iso: Shutting down interface eth0: [ OK ]
virtualbox-iso: Shutting down loopback interface: [ OK ]
virtualbox-iso: Bringing up loopback interface: [ OK ]
virtualbox-iso: Bringing up interface eth0:
virtualbox-iso: Determining IP information for eth0... done.
virtualbox-iso: [ OK ]
virtualbox-iso: ==> Slow DNS fix applied (single-request-reopen)
==> virtualbox-iso: Provisioning with shell script: script/kernel.sh
virtualbox-iso: ==> Configuring Grub to use RedHat-compatible kernel
virtualbox-iso: Rebooting the machine...
==> virtualbox-iso: Unregistering and deleting virtual machine...
==> virtualbox-iso: Deleting output directory...
Build 'virtualbox-iso' errored: Script disconnected unexpectedly.
==> Some builds didn't complete successfully and had errors:
--> virtualbox-iso: Script disconnected unexpectedly.
==> Builds finished but no artifacts were created.