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-
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Creating a New Encrypted Volume Using LUKS
In this hands-on lab, we will use Linux Unified Key Setup (LUKS) to encrypt a volume on a Red Hat host. Then we'll go through the process of unmounting and closing the volume and re-opening and re-mounting the volume, which is standard practice for encrypted volumes not mounted at boot. *This course is not approved or sponsored by Red Hat.*

Lab Info
Table of Contents
-
Challenge
Create a New Logical Volume
- Run the
vgs
command to view a list of available volume groups. - Next, run
lvcreate -L 100M -n patient_lv luks_vg
to create a new logical volume. - Run the
lvs
command to verify that the new logical volume was created.
- Run the
-
Challenge
Encrypt the Volume with LUKS
- Run the following command:
cryptsetup luksFormat /dev/mapper/luks_vg-patient_lv
- Type
YES
at the prompt. - Enter the passphrase
Pinehead1!
at the next two prompts. - Next, run the command
blkid | grep patient
, and check forTYPE=crypto_LUKS
in the output. - Next, format the volume with the following command:
cryptsetup luksOpen /dev/mapper/luks_vg-patient_lv patient_lv
- Enter the passphrase
Pinehead1!
at the prompt. - Next, run the command
ls /dev/mapper
, and check forpatient_lv
in the output. - Run the following command to overwrite all of the storage on the new volume:
shred -v -n1 /dev/mapper/patient_lv
- Next, format the new volume using ext4 with the following command:
mkfs.ext4 /dev/mapper/patient_lv
- Next, mount the volume to
/data
.
mount /dev/mapper/patient_lv /data
- Run the command
ls /data
, and check forlost+found
in the output. - Check the status of the new encrypted volume.
cryptsetup -v status patient_lv
-
Challenge
Create a Test File on the New Volume
- Run the command
touch test.txt /data
to create the test file.
- Run the command
About the author
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