I don't understand why anyone would use passwordless disk encryption. It just seems inherently vulnerable, especially with the threat model of physical compromise.
Entering a password on boot isn't even that much work
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It is on fedora. I wabt the latest packages and I want to install them with dnf offline upgrade but now I need to put in password twice once for the updates d again for next boot. If it is a server, I don't want to keep a monitor attached to it just to enter the password. I want the computer to just boot.
There has to be a better way.
Probably Clevis and Tang, network disk decryption that can only decrypt if most of your servers are online. https://github.com/latchset/clevis https://github.com/latchset/tang
Or network decryption (SSH into initrd). https://github.com/gsauthof/dracut-sshd
It's the same technique grub uses to forward the FDE password to the initramfs after its own initial decryption (to read the kernel and initramfs). This works to reboot remote servers with FDE, without needing a vnc or earlyboot-sshd.
Typically I use offline upgrade if I mean to poweroff but otherwise I just run `sudo dnf update -y && sudo systemctl reboot` in a terminal if I want a quick update&reboot.
On another laptop I am using silverblue (well bluefin) and the atomic upgrades solve the issue completely.