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Michel Le Cocq 2020-06-24 08:37:26 +02:00
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disable-encrypt-swap-partition.md

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# disable encrypt swap partition # disable encrypt swap partition
## prerequisite ## prerequisite
* This setup is based on [encrypt swap partition](./encrypt-swap-Ubuntu-20.04) * This setup is based on [encrypt swap partition](./encrypt-swap-Ubuntu-20.04)
* all command bellow are run has root * all command bellow are run has root
## disable encrypt swap partition ## disable encrypt swap partition
* Turn off swap * Turn off swap
~~~ ~~~
swapoff /dev/mapper/cryptswap swapoff /dev/mapper/cryptswap
~~~ ~~~
* Undo the existing mapping. * Undo the existing mapping.
~~~ ~~~
cryptsetup luksClose /dev/mapper/cryptswap cryptsetup luksClose /dev/mapper/cryptswap
~~~ ~~~
* remove your encrypt swap device define in your /etc/crypttab * remove your encrypt swap device define in your **/etc/crypttab**
* ajust /etc/fstab to use your real swap partition * ajust **/etc/fstab** to use your real swap partition
~~~ ~~~
/dev/nvme0n1p2 none swap discard 0 0 /dev/nvme0n1p2 none swap discard 0 0
~~~ ~~~
/!\ le point ci-dessous est sans doute inutile * make your partition a swap
* Change your /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT to point to your real partition ~~~
mkswap /dev/nvme0n1p2
~~~ ~~~
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=/dev/nvme0n1p2"
~~~ * activate swap
~~~ ~~~
update-grub swapon -a
~~~ ~~~
* edit /etc/initramfs-tools/conf.d/resume. Replace the existing RESUME line with the following line. /!\ le point ci-dessous est sans doute inutile
~~~ * Change your /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT to point to your real partition
RESUME=/dev/nvme0n1p2
~~~ ~~~
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=/dev/nvme0n1p2"
Register these changes. ~~~
~~~ ~~~
update-initramfs -u -k all update-grub
~~~ ~~~
* make your partition a swap * edit /etc/initramfs-tools/conf.d/resume. Replace the existing RESUME line with the following line.
~~~ ~~~
mkswap /dev/nvme0n1p2 RESUME=/dev/nvme0n1p2
~~~ ~~~
* activate swap Register these changes.
~~~ ~~~
swapon -a update-initramfs -u -k all
~~~ ~~~
Next you need to reboot to enable everything and test it. Next you need to reboot to enable everything and test it.