This is happening with legacy BIOS boot. I didn't test it with EFI booting.
This is reproducible with both,
- Debian installed using debian-installer (that can be started from the
ISO boot menu) (which sets up an encrypted LVM),
- as well as with Debian installed using calamares (which uses grub to
decrypt the full disk encrypted hard drive).
Here's the dracut log:
sudo dracut -f
dracut: Executing: /usr/bin/dracut -f
dracut: dracut module 'mksh' will not be installed, because command
'mksh' could not be found!
dracut: dracut module 'systemd-coredump' will not be installed, because
command 'coredumpctl' could not be found!
dracut: dracut module 'systemd-coredump' will not be installed, because
command '/usr/lib/systemd/systemd-coredump' could not be found!
dracut: dracut module 'systemd-portabled' will not be installed, because
command 'portablectl' could not be found!
dracut: dracut module 'systemd-portabled' will not be installed, because
command '/usr/lib/systemd/systemd-portabled' could not be found!
dracut: dracut module 'systemd-resolved' will not be installed, because
command 'resolvectl' could not be found!
dracut: dracut module 'systemd-resolved' will not be installed, because
command '/usr/lib/systemd/systemd-resolved' could not be found!
dracut: dracut module 'systemd-timesyncd' will not be installed, because
command '/usr/lib/systemd/systemd-timesyncd' could not be found!
dracut: dracut module 'dbus-broker' will not be installed, because
command 'dbus-broker' could not be found!
dracut: dracut module 'rngd' will not be installed, because command
'rngd' could not be found!
dracut: dracut module 'lvmmerge' will not be installed, because command
'lvm' could not be found!
dracut: dracut module 'lvmthinpool-monitor' will not be installed,
because command 'lvm' could not be found!
dracut: dracut module 'dmraid' will not be installed, because command
'dmraid' could not be found!
dracut: dracut module 'lvm' will not be installed, because command 'lvm'
could not be found!
dracut: dracut module 'mdraid' will not be installed, because command
'mdadm' could not be found!
dracut: dracut module 'multipath' will not be installed, because command
'multipath' could not be found!
dracut: dracut module 'pcsc' will not be installed, because command
'pcscd' could not be found!
dracut: dracut module 'tpm2-tss' will not be installed, because command
'tpm2' could not be found!
dracut: dracut module 'nvmf' will not be installed, because command
'nvme' could not be found!
dracut: dracut module 'biosdevname' will not be installed, because
command 'biosdevname' could not be found!
dracut: dracut module 'memstrack' will not be installed, because command
'memstrack' could not be found!
dracut: memstrack is not available
dracut: If you need to use rd.memdebug>=4, please install memstrack and
procps-ng
dracut: *** Including module: systemd ***
dracut: *** Including module: systemd-initrd ***
dracut: *** Including module: modsign ***
dracut: *** Including module: console-setup ***
dracut: *** Including module: i18n ***
dracut: *** Including module: drm ***
dracut: *** Including module: plymouth ***
dracut: *** Including module: btrfs ***
dracut: *** Including module: crypt ***
dracut: *** Including module: dm ***
dracut: Skipping udev rule: 10-dm.rules
dracut: Skipping udev rule: 13-dm-disk.rules
dracut: Skipping udev rule: 64-device-mapper.rules
dracut: *** Including module: kernel-modules ***
dracut: *** Including module: kernel-modules-extra ***
dracut: *** Including module: nvdimm ***
dracut: *** Including module: overlay-root ***
dracut: *** Including module: qemu ***
dracut: *** Including module: lunmask ***
dracut: *** Including module: resume ***
dracut: *** Including module: rootfs-block ***
dracut: *** Including module: terminfo ***
dracut: *** Including module: udev-rules ***
dracut: Skipping udev rule: 40-redhat.rules
dracut: Skipping udev rule: 91-permissions.rules
dracut: Skipping udev rule: 80-drivers-modprobe.rules
dracut: *** Including module: virtiofs ***
dracut: *** Including module: dracut-systemd ***
dracut: *** Including module: usrmount ***
dracut: *** Including module: base ***
dracut: *** Including module: fs-lib ***
dracut: *** Including module: shutdown ***
dracut: *** Including modules done ***
dracut: *** Installing kernel module dependencies ***
dracut: *** Installing kernel module dependencies done ***
dracut: *** Resolving executable dependencies ***
dracut: *** Resolving executable dependencies done ***
dracut: *** Hardlinking files ***
dracut: Mode: real
dracut: Method: sha256
dracut: Files: 2226
dracut: Linked: 211 files
dracut: Compared: 0 xattrs
dracut: Compared: 3762 files
dracut: Saved: 18.82 MiB
dracut: Duration: 0.203010 seconds
dracut: *** Hardlinking files done ***
dracut: *** Generating early-microcode cpio image ***
dracut: *** Constructing AuthenticAMD.bin ***
dracut: *** Constructing GenuineIntel.bin ***
dracut: *** Store current command line parameters ***
dracut: *** Stripping files ***
dracut: *** Stripping files done ***
dracut: *** Creating image file '/boot/initrd.img-6.1.0-10-amd64' ***
dracut: Using auto-determined compression method 'gzip'
dracut: *** Creating initramfs image file
'/boot/initrd.img-6.1.0-10-amd64' done ***
