"VBoxManage modifyvm <UUID> --videocap on" doesn't work

[vboooo]

Since 5.2.x video recording doesn't start together with startvm.

VBoxManage modifyvm "%_VM_NAME%" --videocap on

works until VBox 5.1.32

Under VBox 5.2.x the video icon on VBoxGUI is running around, but no *webm file exist. After

VBoxManage controlvm "%_VM_NAME%" videocap on

the *.webm file is created.

• To reproduce *

  set PATH=%PATH%;C:\Program Files\Oracle\VirtualBox
  
  pushd %~dp0
  
  set _VM_NAME=test-5p1_001
  
  VBoxManage createvm --name "%_VM_NAME%" --register --basefolder "%CD%"
  VBoxManage modifyvm "%_VM_NAME%" --memory 512 --acpi on --boot1 dvd
  VBoxManage modifyvm "%_VM_NAME%" --ostype Debian
  VBoxManage createhd --filename %_VM_NAME%.vdi --size 10000
  VBoxManage storagectl "%_VM_NAME%" --name "IDE Controller" --add ide
  VBoxManage storageattach "%_VM_NAME%" --storagectl "IDE Controller" --port 0 --device 0 --type hdd --medium %_VM_NAME%.vdi
  
  VBoxManage modifyvm "%_VM_NAME%" --videocapfile "%CD%\%_VM_NAME%.webm"
  
  ::VBox 5.1.32: create video, if VM started
  ::VBox 5.2.12: doesn't work, if VM started (but videocap icon on VBox GUI rotate)
  VBoxManage modifyvm "%_VM_NAME%" --videocap on
  
  VBoxManage startvm "%_VM_NAME%" --type gui
  
  ::VBox 5.2.12: additional necessary to create video
  rem VBoxManage controlvm "%_VM_NAME%" videocap on
  
  ping localhost -n 5 >nul 2>nul
  VBoxManage controlvm "%_VM_NAME%" poweroff
  dir *.webm
  
  pause
  

[vboooo]

Fixed with:

VirtualBox 5.2.20 (released October 16 2018)

Video recording: fixed starting video recording on VM power up (bug #17307)

[janitor]

Thanks for the reminder.