VirtualBox

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Ticket Resolution Summary Owner Reporter
#19094 invalid Mac OS setting will prevent a USB Bluetooth adaptor being available to VB guests oli-j
Description

By default the action of pugging in a USB Bluetooth adaptor to a Mac running newer versions of Mac OS will cause the OS to switch the primary system bluetooth radio over to the newly plugged in adaptor.

By setting the following NVRAM boot option it is possible to stop this behaviour:

sudo nvram bluetoothHostControllerSwitchBehavior=never

With this boot option set to 'never' VB USB device filters (or manual selection of the USB device) will now be honoured for USB Bluetooth adaptors and they are then successfully made available for guest OS.

See my thread in the VB support forum here: https://forums.virtualbox.org/viewtopic.php?f=8&t=95479&p=463214#p463214

Is it possible for VB to set this configuration via a setting in the VB UI?

Could this then be built into the UI of future versions of VB with a menu option.. e.g.:

"Do you want new USB Bluetooth adaptors to be captured by the guest or host?" with select options/ drop down: *Guest*/*Host*

#19093 invalid Kernel 5.3.9 + are not supported MasterCATZ
Description

Last working Kernel was 5.3.8

as always DKMS fails

where can someone actually see where the last supported kernel is instead of installing a heap of kernels to find the last working one ?

not even any mention in change logs ...

#19090 worksforme running qemu-img in guest over a file on shared folder makes system unusable Roman Valov
Description

Steps to reproduce:

  1. Install centos-7 guest with latest updates and qemu-img utility
  2. Install VirtualBox guest additions as described here: https://wiki.centos.org/HowTos/Virtualization/VirtualBox/CentOSguest
  1. Setup a shared folder
  2. Copy VMDK file onto the shared folder
  3. Run following commands in guest:

$ cd /mnt/shared $ qemu-img info <vmdk-file>

Results:

qemu-img exited with errors and any further invocation of standard linux utilities such as ls results into Segmentation fault.

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