Ubuntu fd0 error

Overview

If you install Ubuntu as an ESXi VM and remove the Floppy virtual hardware Ubuntu will boot slower and throw this error:

blk_update_request: I/O error, dev fd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0

How to Fix

Login to your Ubuntu VM and run the following:

sudo rmmod floppy
echo "blacklist floppy" | sudo tee /etc/modprobe.d/blacklist-floppy.conf
sudo dpkg-reconfigure initramfs-tools

Reboot.

Reference

https://askubuntu.com/questions/719058/blk-update-request-i-o-error-dev-fd0-sector-0