Issue: (Virtualbox) On slow machine:Port forwarding and unregister machine fail:

[Turloch O'Tierney]

Hi _packer_,

Issue: (Virtualbox) On slow machine:Port forwarding and unregister machine fail:

Thank you for your time,

Turloch

Details follow.

Port Forwarding

    virtualbox-ovf: Deleting forwarded port mapping for SSH (host port 3294)

==> virtualbox-ovf: Error deleting port forwarding rule: VBoxManage error: VBoxManage.exe: error: The machine 'packer-virtualbox-ovf-1436190505' is already locked for a session (or being unlocked)

Unregister machine (different run)

==> virtualbox-ovf: Error deleting VM: VBoxManage error: VBoxManage.exe: error: Cannot unregister the machine 'packer-virtualbox-ovf-1436175757' while it is locked

If I use -debug and periodically press enter the VM has time to unlock. (This would be hard to script)

(and while I am at it: (tried to halt the machine myself so I could add a pause after halt, packer had an error on stopping as it wanted to shut the machine down.)

==> virtualbox-ovf: Halting the virtual machine...

==> virtualbox-ovf: Error stopping VM: VBoxManage error: VBoxManage.exe: error: Invalid machine state: PoweredOff (must be Running, Paused or Stuck))

From a quick look at port forwarding:

func (s *StepExport) Run(state multistep.StateBag) multistep.StepAction {

driver := state.Get("driver").(Driver)

ui := state.Get("ui").(packer.Ui)

vmName := state.Get("vmName").(string)

//XXXXXXXXXXX Wait a second to ensure VM is really shutdown not enough on a slow machine.XXXXXXXXXXXX

log.Println("1 second timeout to ensure VM is really shutdown")

time.Sleep(1 * time.Second)

ui.Say("Preparing to export machine...")

From a quick look at 

// Wait for the machine to actually shut down

log.Printf("Waiting max %s for shutdown to complete", s.Timeout)

shutdownTimer := time.After(s.Timeout)

for {

running, _ := driver.IsRunning(vmName)

if !running {

break

}

select {

case <-shutdownTimer:

err := errors.New("Timeout while waiting for machine to shut down.")

state.Put("error", err)

ui.Error(err.Error())

return multistep.ActionHalt

default:

time.Sleep(500 * time.Millisecond)

}

}

Maybe it is locked for a couple of seconds after !running,

(

Test:Sleep in the shutdown command shell script: 

Result:small test case works either way.

Test:Could be database shutting down - will stop than in advance

).

[Turloch O'Tierney]

I am using:

 "shutdown_command": "echo 'password' | sudo -S shutdown -P now",

or maybe:

 "shutdown_command": "echo 'password' | sudo -S shutdown -P now && sleep 200",

Will try something like:

"echo sudo -S shutdown -P now > /tmp/shutdown.sh; echo 'password' | sudo -S sh /tmp/shutdown.sh"

I do not see the difference though.

I might put it down to a slow machine - and be resigned to pressing enter a few times and run in debug.

T

[Alvaro Miranda Aguilera]

Hello Turloch

What are the specs you have in the box you are using?

I have get the same error only on windows, and sometimes have been
something related to somehting creating a lock on the files, so
VirtualBox was just failing

- I did put the box in dropbox, and dropbox created a lock on the
disk, moved out of dropbox and solved the issue
- I did hit same error and found my backup solution was backing up the
disk.. same thing, excluded the build folder from backup
- one the same with antivirus


I can see you are using virtualbox-ovf, so you are starting with other
virtual machine image.. if you could start from an iso, and use
virtualbox-iso you can use atlas build to build th boxes.. the free
tier is 20gb in disk, 1gb on memory.

Thanks
Alvaro

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[Turloch O'Tierney]

Hi Alvaro,

Machine spec: Slow Desktop.

The locking issue could be a slow antivirus lock.

Could start from iso - it seems (cleaner and) a bit more work that starting from an base ova.
Atlas build I might look into however the packer project is for an enterprise and 

the virtualbox VM is quite large - I aim to get output .ova file down to 2 gb Ram/ 10Gb disk

(it is a little over that now).

Thank you for your time,

Turloch