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.
Successfully complete this lab by achieving the following learning objectives:
- Repair the Corruption
sudo cryptsetup luksHeaderRestore --header-backup-file /root/header.backup /dev/loop0
- Confirm the LUKS Container Is Intact
sudo cryptsetup -v isLuks /dev/loop0
- Open the LUKS container Using the Keyfile in /root/lukskey
sudo cryptsetup luksOpen /dev/loop0 encvol --key-file /root/lukskey
- Mount the Filesystem and Confirm the Data Is Readable
Mount the filesystem:
sudo mount /dev/mapper/encvol /mnt