The file /etc/ioctl.save contains the serial and terminal parameters to use in single user mode. The serial and terminal parameters are usually set by getty — during single user mode no getty runs and the contents of /etc/ioctl.save are used to set the serial and terminal parameters.
As we are changing consoles, the saved settings are no longer correct.
Figure 7-2. Removal of ioctl.save containing the saved console parameters
bash# rm -f /etc/ioctl.save
We re-create this file once we can log in from the serial console.