Add usb-stick instructions to the firmware-needed message
Add a hint to the effect of: "Your install media has been pre-configured with a writable partition labeled 'Firmware' which you may use to load the firmware file. You may now remove the media. From another computer, search for the debian package containing file -------, download its SOURCE package, file name suffix tar.gz, extract the archive, copy the file to the 'Firmware' partitiion, return to this machine, and plug the install media back in."
There are some related issues here:
1] The installer currently asks the user to install only the particular firmware file, not the entire debian package containing that file.
2] In my experience, the debian package was never later installed by the installer, so it would seem that any future patches or updates to the firmware would never be applied.
3] In my experience, devuan will perpetually boot with warning messages about "possible missing firmware" from related files in the same .deb package. Installing the deb package causes the warning messages to cease.
4] If you agree with my conclusion that it would be simpler for the user and better for the install to have the installer just ask the user to load the deb package instead of a single firmware file within that package, then the message and the installer process should be amended accordingly.
We provide iso images with firmware now so closing.