/usr/share/initramfs-tools/scripts/local-premount/resume is in initramfs-tools-core 0.130ubuntu3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | #!/bin/sh
PREREQ=""
prereqs()
{
echo "$PREREQ"
}
case $1 in
# get pre-requisites
prereqs)
prereqs
exit 0
;;
esac
if [ -z "${resume}" ] || [ ! -e /sys/power/resume ]; then
exit 0
fi
. /scripts/functions
. /scripts/local
PAGE_SIZE=4096
if [ -x /bin/getconf ]; then
PAGE_SIZE=$(getconf PAGESIZE)
fi
export PAGE_SIZE
if ! local_device_setup ${resume} "suspend/resume device" false; then
exit 0
fi
DEV=$(readlink ${resume})
DEV=/sys/class/block/${DEV##*/}/dev
if [ -r "$DEV" ]; then
read MAJMIN < "$DEV"
fi
if [ -z "$MAJMIN" ]; then
exit 1
fi
if [ "${resume_offset}" -ge 0 ] 2>/dev/null; then
offset_option=$((${resume_offset} * ${PAGE_SIZE}))
SWAPTYPE=$(blkid -p -O ${offset_option} "${resume}" -s TYPE -o value)
MAJMIN="${MAJMIN}:${resume_offset}"
else
SWAPTYPE=$(blkid -p -o value -s TYPE "${resume}")
fi
case "${SWAPTYPE}" in
swsuspend|s1suspend|s2suspend|ulsuspend|tuxonice)
if [ -x /bin/plymouth ] && plymouth --ping; then
plymouth message --text="Resuming from $resume"
fi
echo "${MAJMIN}" > /sys/power/resume
;;
esac
|