Unable to install Extension Pack [solved]

[fbr]

I posted on this problem previously, however I was not able to find a solution. I do have some additional detail and I am hoping it will prove useful.

Briefly, I get an error message whenever I try to install the extension pack.

Using the following command:

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VBoxManage extpack install /home/francis/Downloads/Oracle_VM_VirtualBox_Extension_Pack-4.2.8-83876.vbox-extpackI

I get the following results:

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0%...
Progress state: NS_ERROR_FAILURE
VBoxManage: error: Failed to install "/home/francis/Downloads/Oracle_VM_VirtualBox_Extension_Pack-4.2.8-83876.vbox-extpack"
VBoxManage: error: The installer failed with exit code 667: VBoxExtPackHelperApp: error: Missing --name option
VBoxManage: error: rcExit=2
VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component ExtPackManager, interface IExtPackManager
VBoxManage: error: Context: "int handleExtPack(HandlerArg*)" at line 1112 of file VBoxManageMisc.cpp

If I try to install using file > preferences > extensions > Oracle_VM ... I get basically the same message without the last two lines.

Also, I have tried this with 4.2.6, then with 4.2.8 and then again reinstalling 4.2.8. I have added my name to the vboxusers, I installed dkms and everything works fine with vbox other than when I try to access an usb port I am prompted to install the extension pack and then the install fails.

Any help - greatly appreciated

[Perryg]

Where exactly are you installing the Extension Pack? You know it is installed on the host, right?
And the version of the Extension Pack must match the version of VirtualBox you have installed.

[fbr]

Where exactly are you installing the Extension Pack? You know it is installed on the host, right?
And the version of the Extension Pack must match the version of VirtualBox you have installed.

Install attempts were on host and version numbers matched. I have resolved this problem now. I resolved it by using the previous command but this time as root. When using the File > Preference > Extensions > browse to downloaded file sequence. I would first see a quick download pop-up window, the window would freeze and then I would be prompted to enter my root password then the error message.

The same thing was apparently happening from the command line when using my user name account. You can see the 0%... then the statement progress state: NS_ERROR_FAILURE, what doesn't show is I was again prompted for my root password while using the terminal. At any rate, the sequence of, download dialog box, then password dialog box, seemed strange to me so I tried again as root and everything went fine from there.