Script for locking optical drive
On some model ThinkPads it is rather easy to accidentally eject the optical drive (CD/DVD drive). The below two scripts will disable the eject button to prevent accidental ejection. The tray can still be ejected afterwards by either right clicking in a graphical file manager on the CD icon and choosing eject, or from the commandline with the 'eject' command.
Note: These scripts are only for modern Linux distributions utilizing systemd.
Create a file as root named: /etc/systemd/system/cdrom-lock-on-boot.service with the following contents;
[Unit] Description=CD-ROM lock on boot [Service] Type=simple ExecStart=/usr/bin/eject -i on /dev/sr0 [Install] WantedBy=multi-user.target
In addition, also create this file: /etc/systemd/system/cdrom-lock-on-resume.service with the following contents;
[Unit] Description=CD-ROM lock on resume After=suspend.target [Service] Type=simple ExecStart=/usr/bin/eject -i on /dev/sr0 [Install]
Now we need to enable the scripts as follows;
systemctl enable cdrom-lock-on-boot.service systemctl enable cdrom-lock-on-resume.service
Now after a reboot, or suspend/resume cycle the eject button will be locked. Alternatively we can lock it immediately with the following command;
/usr/bin/eject -i on /dev/sr0