Comment 20 for bug 350739

WORKAROUND (added this so people dont need to read the whole thread for a solution)
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I think the module usb-storage isnt loaded during boot for some reason or another, ive figured out a workaround that seems to work fine for me, hopefully it solves the problems others have as well :)
i got rid of the error 'WARNING: All config files need .conf: /etc/modprobe.d/irda-utils, it will be ignored in a future release' by running the following code to rename irda-utils to irda-utils.conf (whenever 'sudo modprobe usb-storage' is run it gave me this warning)
> sudo mv /etc/modprobe.d/irda-utils /etc/modprobe.d/irda-utils.conf
this will add .conf to irda-utils after that when i ran
> sudo modprobe usb-storage
which runs modprobe to add the usb-storage module to the kernel with superuser permissions it never gave me the warning.
so i figured the usb-storage module wasnt being loaded on boot, so i googled how to add a module to the kernel during boot and i was pointed to the /etc/modules file
i added this to the bottom of the file

# Add usb-storage module to load so SD cards are recognized
usb-storage

this adds the module usb-storage to the kernel on boot. hopefully this helps you, if you notice any errors i have made or know of a better solution please reply so others may benefit! :)