From 13aa7a28d9547c32f487432c5c560c0732c14e1c Mon Sep 17 00:00:00 2001
From: Michel Le Cocq <lecocq@ipgp.fr>
Date: Tue, 23 Jun 2020 09:42:29 +0200
Subject: [PATCH] ///

---
 encrypt-swap-Ubuntu-20.04.md | 212 ++++++++++++++++++-----------------
 1 file changed, 110 insertions(+), 102 deletions(-)

diff --git a/encrypt-swap-Ubuntu-20.04.md b/encrypt-swap-Ubuntu-20.04.md
index 4ee8fb3..992bb33 100644
--- a/encrypt-swap-Ubuntu-20.04.md
+++ b/encrypt-swap-Ubuntu-20.04.md
@@ -1,102 +1,110 @@
-## encrypt swap partition
-
-sources :
-* [wiki.archlinux.org - dm-crypt/Swap encryption](https://wiki.archlinux.org/index.php/Dm-crypt/Swap_encryption#LVM_on_LUKS)
-* [help.ubuntu.com - Enable Hibernate With Encrypted Swap](https://help.ubuntu.com/community/EnableHibernateWithEncryptedSwap)
-
-~~~
-apt-get install ecryptfs-utils
-swapoff -a
-cryptsetup luksFormat --cipher aes-xts-plain64 --verify-passphrase --key-size 256 /dev/nvme0n1p2
-cryptsetup open /dev/<device> cryptswap
-mkswap /dev/mapper/mkswap /dev/mapper/cryptswap
-~~~
-
-edit : /etc/default/grub
-
-~~~
-GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUUUUUU"
-~~~
-
-~~~
-update-grub
-~~~
-
-Now ajust /etc/fstab to use your mapper, replace your encrypt swap device like bellow :
-
-~~~
-/dev/mapper/cryptswap   none   swap   discard   0   0
-~~~
-
-add your encrypt swap device define in /etc/crypttab
-
-~~~
-cryptswap   /dev/nvme0n1p2		none	luks
-~~~
-
-~~~
-swapon -a
-~~~
-
-Register these changes.
-
-~~~
-update-initramfs -u -k all
-~~~
-
-### to be solve
-
-~~~
-cryptsetup: ERROR: Couln't resolve device rpool/ROOT/ubuntu_...
-cryptsetup: WARNING: Couln't determine root device
-~~~
-
-## disable encrypt swap partition
-
-* Turn off swap
-
-~~~
-swapoff /dev/mapper/cryptswap1
-~~~
-
-* remove your encrypt swap device define in your /etc/crypttab 
-
-* ajust /etc/fstab to use your real swap partition 
-
-~~~
-/dev/nvme0n1p2   none   swap   discard   0   0
-~~~
-
-* Change your /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT to
-
-~~~
-GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=/dev/nvme0n1p2"
-~~~
-
-~~~
-update-grub
-~~~
-
-* edit /etc/initramfs-tools/conf.d/resume. Replace the existing RESUME line with the following line.
-
-~~~
-RESUME=/dev/nvme0n1p2
-~~~
-
-Register these changes.
-
-~~~
-update-initramfs -u -k all
-~~~
-
-* make your partition a swap
-
-~~~
-mkswap /dev/nvme0n1p2
-~~~
-
-* activate swap
-
-~~~
-swapon -a
-~~~
\ No newline at end of file
+## encrypt swap partition
+
+sources :
+* [wiki.archlinux.org - dm-crypt/Swap encryption](https://wiki.archlinux.org/index.php/Dm-crypt/Swap_encryption#LVM_on_LUKS)
+* [help.ubuntu.com - Enable Hibernate With Encrypted Swap](https://help.ubuntu.com/community/EnableHibernateWithEncryptedSwap)
+
+~~~
+apt-get install ecryptfs-utils
+swapoff -a
+cryptsetup luksFormat --cipher aes-xts-plain64 --verify-passphrase --key-size 256 /dev/nvme0n1p2
+cryptsetup open /dev/<device> cryptswap
+mkswap /dev/mapper/cryptswap
+Configure l'espace d'échange (swap) en version 1, taille = 31,1 GiB (33420210176 octets)
+pas d'étiquette, UUID=4fd1ffc-6d5b-450a-9737-abf1ffb80b1
+~~~
+
+edit : /etc/default/grub
+
+~~~
+GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=4fd1ffc-6d5b-450a-9737-abf1ffb80b1"
+~~~
+
+~~~
+update-grub
+~~~
+
+Now ajust /etc/fstab to use your mapper, replace your encrypt swap device like bellow :
+
+~~~
+/dev/mapper/cryptswap   none   swap   discard   0   0
+~~~
+
+add your encrypt swap device define in /etc/crypttab
+
+~~~
+cryptswap   /dev/nvme0n1p2		none	luks
+~~~
+
+~~~
+swapon -a
+~~~
+
+/!\ ici faut trouver comment on recupere le blkid de la partition swap
+
+~~~
+printf "RESUME=UUID=/dev/mapper/cryptswap" | tee /etc/initramfs-tools/conf.d/resume
+~~~
+
+Register these changes.
+
+~~~
+update-initramfs -u -k all
+~~~
+
+### to be solve
+
+~~~
+cryptsetup: ERROR: Couln't resolve device rpool/ROOT/ubuntu_...
+cryptsetup: WARNING: Couln't determine root device
+~~~
+
+## disable encrypt swap partition
+
+* Turn off swap
+
+~~~
+swapoff /dev/mapper/cryptswap1
+~~~
+
+* remove your encrypt swap device define in your /etc/crypttab 
+
+* ajust /etc/fstab to use your real swap partition 
+
+~~~
+/dev/nvme0n1p2   none   swap   discard   0   0
+~~~
+
+* Change your /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT to
+
+~~~
+GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=/dev/nvme0n1p2"
+~~~
+
+~~~
+update-grub
+~~~
+
+* edit /etc/initramfs-tools/conf.d/resume. Replace the existing RESUME line with the following line.
+
+~~~
+RESUME=/dev/nvme0n1p2
+~~~
+
+Register these changes.
+
+~~~
+update-initramfs -u -k all
+~~~
+
+* make your partition a swap
+
+~~~
+mkswap /dev/nvme0n1p2
+~~~
+
+* activate swap
+
+~~~
+swapon -a
+~~~