https://arunns.net Arun's blog Fri, 07 Aug 2020 10:33:55 +0000 en-US hourly 1 https://wordpress.org/?v=6.4.2 https://arunns.net/encrypt-secondary-disk-linux/ https://arunns.net/encrypt-secondary-disk-linux/#respond Fri, 07 Aug 2020 10:33:55 +0000 http://letushare.com/?p=877 <backup_destination/> Once the backup is completed, install cryptsetupsudo apt install cryptsetup Create the encrypted partitionsudo cryptsetup --verbose --verify-passphrase luksFormat <device_name>Provide passphrase once prompted, you could use fdisk -l to find the […]]]> To set up cryptographic volumes, you need to back up the data first and restore data after the encryption is setup.

rsync -Pav <source/> <backup_destination/>

Once the backup is completed, install cryptsetup
sudo apt install cryptsetup

Create the encrypted partition
sudo cryptsetup --verbose --verify-passphrase luksFormat <device_name>
Provide passphrase once prompted, you could use fdisk -l to find the correct device.

Open the encrypted device
sudo cryptsetup luksOpen /dev/vdb1 vdb1 # the device name was vdb1 in my case
This will prompt the passphrase to open the device

Create the required file system
mkfs.ext4 /dev/mapper/vdb1

You could remove the ext4 reservation if not required
tune2fs -m 0 /dev/mapper/vdb1

Create mount directory
mkdir /mnt/secondary

Mount the device
mount /dev/mapper/vdb1 /mnt/secondary

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