apt-cache search initramfs-tools
cloud-initramfs-growroot - automatically resize the root partition on first boot
cloud-initramfs-rescuevol - boot off a rescue volume rather than root filesystem
cryptsetup - disk encryption support - startup scripts
initramfs-tools - tools for generating an initramfs
initramfs-tools-bin - binaries used by initramfs-tools
initramfs-tools-tcos - Tools for generating a TCOS thin client bootable image
live-boot - Debian Live - System Boot Scripts
live-boot-initramfs-tools - Debian Live - System Boot Scripts (initramfs-tools backend)
uswsusp - tools to use userspace software suspend provided by Linux