With a new install as a virtual server, Ubuntu repeatedly displays the error:
print_req_error: I/O error, dev fd0, sector 0
The reason is the virtual server does not have a floppy drive. To resolve:
# sudo rmmod floppy
# echo “blacklist floppy” | tee /etc/modprobe.d/blacklist-floppy.conf
# sudo dpkg-reconfigure initramfs-tools
The message should now be gone for good.