richb wrote:It is in /usr/share/virtualbox/VBoxGuestAdditions.iso. Same as yours.
This is what I get when I insert the GuestAdditions iso. But I right click on drive and choose open autoplay to get this. I am using a Win7 Guest.
Enabling the check box will probably open it without intervention.
I think I figured it out. If the CD is already mounted in the Windows guest, then "Devices>Insert Guest Additions CD image ..." doesn't do anything. However, if I eject the CD in the Windows guest, and then click on "Devices>Insert Guest Additions CD image ...", the CD is mounted and
the installer executes.
This behavior is a little different than the older versions of VirtualBox, which required mounting the .iso beforehand in the Storage settings. In those versions, selecting "Devices>Install Guest Additions" would start the installer with the CD already mounted.