2020-06-24 08:37:26 +02:00
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# disable encrypt swap partition
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## prerequisite
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* This setup is based on [encrypt swap partition](./encrypt-swap-Ubuntu-20.04)
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* all command bellow are run has root
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## disable encrypt swap partition
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* Turn off swap
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~~~
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2020-06-24 09:41:53 +02:00
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root@laptop:/root# swapoff /dev/mapper/cryptswap
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2020-06-24 08:37:26 +02:00
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~~~
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* Undo the existing mapping.
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~~~
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2020-06-24 09:41:53 +02:00
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root@laptop:/root# cryptsetup luksClose /dev/mapper/cryptswap
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2020-06-24 08:37:26 +02:00
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~~~
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* remove your encrypt swap device define in your **/etc/crypttab**
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* ajust **/etc/fstab** to use your real swap partition
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~~~
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/dev/nvme0n1p2 none swap discard 0 0
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~~~
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* make your partition a swap
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~~~
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2020-06-24 09:41:53 +02:00
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root@laptop:/root# mkswap /dev/nvme0n1p2
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2020-06-24 08:37:26 +02:00
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~~~
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* activate swap
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~~~
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2020-06-24 09:41:53 +02:00
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root@laptop:/root# swapon -a
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2020-06-24 08:37:26 +02:00
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~~~
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2020-06-24 09:37:05 +02:00
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* remove file */etc/initramfs-tools/conf.d/resume*
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2020-06-24 08:37:26 +02:00
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~~~
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2020-06-24 09:41:53 +02:00
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root@laptop:/root# rm /etc/initramfs-tools/conf.d/resume
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2020-06-24 08:37:26 +02:00
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~~~
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2020-06-24 09:37:05 +02:00
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Register these changes.
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2020-06-24 09:37:38 +02:00
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~~~{bash}
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2020-06-24 09:37:05 +02:00
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root@laptop:/root# update-initramfs -u -k all
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update-initramfs: Generating /boot/initrd.img-5.4.0-37-generic
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cryptsetup: ERROR: Couldn't resolve device rpool/ROOT/ubuntu_0ctpm6
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cryptsetup: WARNING: Couldn't determine root device
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I: The initramfs will attempt to resume from /dev/nvme0n1p2
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I: (UUID=09c1daa8-a572-41b9-8655-c38ea7778723)
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I: Set the RESUME variable to override this.
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root@laptop:/root#
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2020-06-24 08:37:26 +02:00
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~~~
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2020-06-24 09:37:05 +02:00
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* Change your /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT to point to your real partition
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2020-06-24 08:37:26 +02:00
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~~~
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2020-06-24 09:41:00 +02:00
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GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=09c1daa8-a572-41b9-8655-c38ea7778723"
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2020-06-24 08:37:26 +02:00
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~~~
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~~~
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2020-06-24 09:41:53 +02:00
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root@laptop:/root# update-grub
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2020-06-24 08:37:26 +02:00
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~~~
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Next you need to reboot to enable everything and test it.
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