Devices not visable using `initrd.systemd` with btrfs

[IogaMaster]

This made it see /dev/pool/root.

However, now I am experiencing this issue.

LUKS+LVM+TPM2 passwordless unlock: "Failed to mount /sysroot"

It looks like you commented out fsType = "ext4";. This cannot be commented out. The initrd only includes kernel modules for file systems that it knows it needs, which is determined by fsType. As a sidenote, keep in mind that the TPM is something that must be used carefully. It can render disk encryption pointless if you don’t have the system configured right.

I am using disko though, so I don’t know where I can use fsType. Can you help?

I do have this line:
boot.initrd.supportedFilesystems = ["btrfs"];