I can confirm that adding crc32c as a manual entry in the /etc/initramfs-tools/modules and rebuilding the initramfs with update-initramfs -u does work to fix the problem on Ubuntu 10.04.
I can confirm that adding crc32c as a manual entry in the /etc/initramfs- tools/modules and rebuilding the initramfs with update-initramfs -u does work to fix the problem on Ubuntu 10.04.