I made this post on Reddit, but I think here is more applicable.
I'm a bit of a novice when it comes to Linux.
I got a Bluetooth dongle that is supposedly long-range, but when I run bluetoothctl, no default controller is available. After some googling, I found that when I run dmesg, I get:
[ 210.883031] bluetooth hci0: Direct firmware load for rtl_bt/rtl8761b_fw.bin failed with error -2
[ 210.883032] Bluetooth: hci0: RTL: firmware file rtl_bt/rtl8761b_fw.bin not found
After some more googling, I wasn't clear on how to install firmware for my dongle. Most sources I could find involved copying the firmware into the /usr/lib/firmware directory, but on unRAID that firmware directory is nonexistent.
There may be some assumptions I'm making about Linux because I come from using windows all my life and unRAID for about a year or two.
I've also found that the firmware should be included in unRAID.
Edit: I might be wrong about it being included. I swore I saw a forum post about it being added, but I can only find this post and there is no definitive answer given.