Power management/Suspend and hibernate

Grub setting

• UUID for swapfile

findmnt -no UUID -T /swapfile

• offset for swapfile

sudo filefrag -v /swapfile | awk '$1=="0:" {print substr($4, 1, length($4)-2)}'

• add to /etc/default/grub

GRUB_CMDLINE_LINUX_DEFAULT="quiet ... resume=UUID=c20be35e-47be-4e7d-919f-966ba1edf0ea resume_offset=2224128"

Dracut setting

• add the module

cat /etc/dracut.conf.d/resume.conf

add_dracutmodules+=" resume "

• generate the initram

Use the linux<x>.<y>

uname -r
sudo xbps-reconfigure -f linux5.18