Addendum: It's not the "grep /dev/swaps". It kept failing until I replaced the entire /usr/share/initramfs-tools/hooks/mdadm with "return 0"
Cheers Seegras -- "Those who give up essential liberties for temporary safety deserve neither liberty nor safety." -- Benjamin Franklin "It's also true that those who would give up privacy for security are likely to end up with neither." -- Bruce Schneier