- Lab
- A Cloud Guru
Fix This Broken Encrypted Linux Block Device
In this activity you will resolve an issue that prevents a LUKS container from being opened successfully. You are working as a System Administrator and tasked with opening and mounting a corrupted LUKS container. Currently the device is not recognized as a LUKS container as shown by the isLuks command: ``` # cryptsetup -v isLuks /dev/loop0 Command failed with code -1 (wrong or missing parameters). ``` You will need to login to the remote system running CentOS Linux 7.7 and resolve the issue.
Path Info
Table of Contents
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Challenge
Repair the Corruption
sudo cryptsetup luksHeaderRestore --header-backup-file /root/header.backup /dev/loop0 -
Challenge
Confirm the LUKS Container Is Intact
sudo cryptsetup -v isLuks /dev/loop0 -
Challenge
Open the LUKS container Using the Keyfile in /root/lukskey
sudo cryptsetup luksOpen /dev/loop0 encvol --key-file /root/lukskey -
Challenge
Mount the Filesystem and Confirm the Data Is Readable
Mount the filesystem:
sudo mount /dev/mapper/encvol /mntRead data:
cat /mnt/secret
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