Package: initramfs-tools Version: 0.117 I discovered these ancient files $ find /etc/initramfs-tools/conf.d -type f|xargs more|cat :::::::::::::: /etc/initramfs-tools/conf.d/resume :::::::::::::: # RESUME=/dev/hda5 RESUME='UUID=89a43990-ecd9-426f-adf2-529902935af4' :::::::::::::: /etc/initramfs-tools/conf.d/resume^old :::::::::::::: RESUME=/dev/hda5 That is an ancient swap partition not currently mounted.