On 2024-01-26, Nicolas George <geo...@nsup.org> wrote: > Curt (12024-01-26): >> A play-sound.timer unit file in /usr/lib/systemd/system-generators/initrd >> directory. > > I see no mention of this directory on the web. Where did yo find the > idea of using it, I want to check the doc.
I guess that path should've been /usr/local/lib/systemd/system-generators/*. https://manpages.debian.org/testing/systemd/systemd.generator.7.en.html > And what should I put in the timer file to express “when a password is > asked”? > In fact, what relation do you see between a timer and cryptsetup asking > for a password? > **Step 1: Create the Timer Unit File** 1. Create a timer unit file named `play-sound-cryptsetup.timer` in the `/usr/local/lib/systemd/system-generators/initrd` directory. 2. Add the following content to the `play-sound-cryptsetup.timer` file: ``` [Unit] Description=Play sound when cryptsetup prompts for a password [Timer] OnBootSec=0 [Install] WantedBy=initrd.target ``` This timer will be triggered immediately after the initrd is loaded, ensuring the sound is played at the very beginning of the boot process. **Step 2: Create the Service Unit File** 1. Create a service unit file named `play-sound-cryptsetup.service` in the same directory as the timer unit file (`/usr/local/lib/systemd/system-generators/initrd`). 2. Add the following content to the `play-sound-cryptsetup.service` file: ``` [Unit] Description=Play sound when cryptsetup prompts for a password [Service] Type=oneshot ExecStart=/usr/bin/cryptsetup --key-file /dev/null open-dialog cryptluks ExecStartPost=/bin/play -q /path/to/your/sound.wav ``` Replace `cryptluks` with the actual device name of your encrypted partition. **Step 3: Create the Initrd Image** 1. Build the initrd image using the `mkinitrd` tool: ``` mkinitrd -f /boot/initramfs-$(uname -r).img -v ``` 2. Update the initrd image to be used by systemd: ``` sudo update-initramfs -u ``` **Step 4: Enable and Start the Timer** 1. Enable the timer to ensure it runs every time the system boots: ``` sudo systemctl enable play-sound-cryptsetup.timer ``` 2. Start the timer to play the sound immediately: ``` sudo systemctl start play-sound-cryptsetup.timer ``` Now, every time you boot your system and cryptsetup prompts for a password, the specified sound file (`/path/to/your/sound.wav`) will play. (Anyway, this is what my personal robot explained to me and may be subject to imperfection and error.)
