I have Ubuntu 16.04 installed on a second partition of my ssd, dual booting with Windows 10. The time it takes Ubuntu to boot is beyond stupid, close to 3 minutes! I have been through the dmesg after boot but it has not turned up any useful stuff online.
Long wait times are at the end, where is goes from 8 seconds, to almost 100 and then another jump to 150.
does not compute. Do you mean you want to keep Bluetooth enabled? if not, I would guess to switch off Bluetooth which could at least solve that first problem (bios disable) or postpone initialization to a later state if possible.
for the second one i would ask someone (i haven't had any problems due to old hardware) to take a look at your USB, because the second hiccup might be a in built / missing kernel driver module problem
sorry to not be able to help further, good luck finding the source + posting solutions
No, I do not need bluetooth to be enabled. I want it to stop causing a slow boot. I have disabled the bluetooth service from starting at boot, and yet the bluetooth ethernet emulation thing is still causing a long wait.