2020-06-23 14:18:54 +02:00
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## prerequisite
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* all command bellow are run has root
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## encrypt swap partition
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sources :
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* [wiki.archlinux.org - dm-crypt/Swap encryption](https://wiki.archlinux.org/index.php/Dm-crypt/Swap_encryption#LVM_on_LUKS)
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* [help.ubuntu.com - Enable Hibernate With Encrypted Swap](https://help.ubuntu.com/community/EnableHibernateWithEncryptedSwap)
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~~~
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apt-get install ecryptfs-utils
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swapoff -a
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cryptsetup luksFormat --cipher aes-xts-plain64 --verify-passphrase --key-size 256 /dev/nvme0n1p2
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cryptsetup open /dev/nvme0n1p2 cryptswap
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mkswap /dev/mapper/cryptswap
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~~~
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/!\ le point ci-dessous est sans doute inutile
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* Change your /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT to remove resume part wich is now manage by initramfs
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~~~
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GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
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~~~
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~~~
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update-grub
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~~~
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Now ajust /etc/fstab to use your mapper, replace your encrypt swap device like bellow :
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~~~
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/dev/mapper/cryptswap none swap discard 0 0
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~~~
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add your encrypt swap device define in /etc/crypttab
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~~~
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cryptswap /dev/nvme0n1p2 none luks
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~~~
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~~~
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swapon -a
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~~~
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~~~
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printf "RESUME=UUID=/dev/mapper/cryptswap" | tee /etc/initramfs-tools/conf.d/resume
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~~~
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Register these changes.
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~~~
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update-initramfs -u -k all
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~~~
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### to be solve
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~~~
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cryptsetup: ERROR: Couln't resolve device rpool/ROOT/ubuntu_...
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cryptsetup: WARNING: Couln't determine root device
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~~~
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