Update virtualbox to 6.1.20

Authored by kyrios123 on Apr 24 2021, 11:31 AM.


Update virtualbox to 6.1.20

  • VMM: Fixed extremely poor VM performance depending on the timing of various actions
  • VMM: Fixed guest OS hanging under certain circumstances when Hyper-V is present
  • VMM: Fixed Guru Meditation error when using a nested hypervisor under certain circumstances
  • OCI: Add cloud-init support for export to OCI and for OCI instance creation
  • GUI: Fixed "Delete all files" leaving behind Logs/VBoxUI.log
  • Audio: Multiple fixes and enhancements
  • Network: Fixed link status reporting for "not attached" adapters
  • Network: Fixed connectivity issues with e1000 in OS/2 guests
  • Network: Fixed VxWorks e1000 driver compatibility issue
  • Network: Fixed GUI checks for port forwarding rules rejecting IPv6 with "Nat Network"
  • DHCP: Don't crash in the presence of fixed address assignments
  • Serial: Fixed possible VM hang when using the a serial port in disconnected mode
  • Webcam: Fixed interoperability with v4l2loopback and fixed a crash under certain circumstances
  • NVMe: Fixed sporadic Windows VM hang or reboot on high CPU load
  • VBoxManage: Allow changing network adapter attachment of a saved VM with "modifyvm"
  • vboximg-mount: Fix for argument processing to honor the '--root' option
  • Linux host and guest: Support kernel versions 5.11 and 5.12
  • Linux host: Maximum MTU size increased to 16110 for host-only adapters on Linux kernels 4.10+
  • Linux Guest Additions: Fix vboxvideo module compilation for kernel version 5.10.x

Signed-off-by: Pierre-Yves <>


kyrios123Apr 24 2021, 11:31 AM
kyrios123Apr 24 2021, 11:33 AM
R3133:04be5140b07b: Rebuild against kernel
tag: virtualbox-6.1.20-186