I am running linux-5.14.3 and build VirtualBox from source (in order to get the VNC server). I hit known problems building from 6.1.26 source and so tried svn checkout of current revision 91035. Build went perfectly including kernel modules. I then installed the latest 6.1.26 ExtensionPack.
However startvm of any VM fails with this Oracle VM VirtualBox Headless Interface 6.1.97 (C) 2008-2021 Oracle Corporation All rights reserved. Starting virtual machine: Operation failed: NS_ERROR_FAILURE Error: failed to start machine. Error message: Failed to construct device 'usb-ehci' instance #0 (VERR_PDM_DEVHLP_VERSION_MISMATCH) Is there any way to get an ExtensionPack corresponding to revision 91035? I don't see that mentioned in the wiki anywhere. Alternatively is there some code change I can make to the revision 91035 build that makes it compatible with ExtensionPack-6.1.26? Or must I lose USB-2? Cheers, John Lumby
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