reopen 800034 thanks Unfortunately, this bug is not fixed. apt-get remove virtualbox-ext-pack gives the following error message:
Removing virtualbox-ext-pack (5.0.6-1~bpo8+1) ... 0%... Progress state: NS_ERROR_FAILURE VBoxManage: error: Failed to uninstall "Oracle VM VirtualBox Extension Pack" VBoxManage: error: The installer failed with exit code 2: VBoxExtPackHelperApp: error: Unknown option: '--forced' VBoxManage: error: rcExit=2 VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component ExtPackManagerWrap, interface IExtPackManager VBoxManage: error: Context: "RTEXITCODE handleExtPack(HandlerArg*)" at line 1199 of file VBoxManageMisc.cpp dpkg: error processing package virtualbox-ext-pack (--remove): subprocess installed pre-removal script returned error exit status 1 Errors were encountered while processing: virtualbox-ext-pack E: Sub-process /usr/bin/dpkg returned an error code (1)