Documentation/power/swsusp-dmcrypt.rst

2 How to use dm-crypt and swsusp together
10 You know how dm-crypt works. If not, visit the following web page:
11 http://www.saout.de/misc/dm-crypt/
13 You did read Documentation/admin-guide/initrd.rst and know how an initrd works.
17 the swap device(s) and the boot partition which may contain a mini
25 or an usb stick prior to resume. So you need an initrd, that sets
26 up dm-crypt and then asks swsusp to resume from the encrypted
29 The most important thing is that you set up dm-crypt in such
36   brw-------  1 root root 254, 0 Jul 28 13:37 /dev/mapper/swap0
53 you create an initrd that reads the required dm-crypt setup
64 /dev/hda1 contains an unencrypted mini system that sets up all
68 continues boot with your mini system on /dev/hda1 if resume
76   noresume=`grep -c noresume /proc/cmdline`
81   dmesg -n 1
82   /sbin/cardmgr -q
85     if [ -f /proc/ide/hde/media ]
88       mount -t ext2 -o ro /dev/hde1 /mnt
89       if [ -f /mnt/swapkey ]
99   dmesg -n 6
115   umount -l /mnt
134 mini system on /dev/hda1 to set the whole crypto up (it is up to