The root account is locked

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Hello,

For security reasons, the root account locked on Kaisen.

To unlock it please follow :

Tutorial: Chroot into a Linux System with LVM and Optional Encryption

Prerequisites:

  • A Linux system installed on an LVM (Logical Volume Management) volume.
  • A live CD or USB with a Linux distribution to access the system in live mode.

Step 1: Boot from the Live CD/USB

Insert the live CD/USB and boot the computer from this media. Make sure to select the appropriate option to boot in live mode.

Step 2: Open a Terminal

Once in the live environment, open a terminal.

Step 3: Determine mount sources

Identify the volume group (VG) and logical volumes (LV) of your Linux installation using the following command:

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lsblk

You shoukd have something similar :

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sda                      8:0    0 476.9G  0 disk  
├─sda1                   8:1    0   121M  0 part  /boot/efi
├─sda2                   8:2    0   488M  0 part  /boot
└─sda3                   8:3    0 476.3G  0 part  
  └─sda3_crypt         254:0    0 476.3G  0 crypt 
    ├─nikilab--vg-root 254:1    0  37.3G  0 lvm   /snap
    │                                             /
    └─nikilab--vg-home 254:2    0   439G  0 lvm   /home

Step 4: Mount the Root File System

Mount the logical volume corresponding to your root file system in the /mnt directory. Replace VG_NAME and LV_NAME with the appropriate names. Do note forget your other partitions lile /boot and EFI

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sudo mount /dev/VG_NAME/LV_NAME /mnt
sudo mount /dev/sda2 /mnt/boot
sudo mount /dev/sda1 /mnt/boot/efi

Step 5: Mount System Directories

Mount the necessary special filesystems in the /mnt directory. Execute the following commands:

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sudo mount --bind /dev /mnt/dev
sudo mount --bind /proc /mnt/proc
sudo mount --bind /sys /mnt/sys
sudo mount --bind /sys/firmware/efi/efivars /mnt/sys/firmware/efi/efivars

Step 6 (Optional): Decrypt the LVM

If your LVM is encrypted, use the following command to decrypt . Replace LV_NAME with the name of the logical volume to be encrypted.

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sudo cryptsetup luksOpen /dev/VG_NAME/LV_NAME cryptroot

Step 8: Chroot into the Installed System

Chroot into the installed system with the mounted system directories:

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sudo chroot /mnt /bin/bash

Step 9: Unlock root

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passwd -u root

Step 10: Exit the Chroot

Once finished, exit the chroot and unmount the mounted filesystems:

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exit
sudo umount -R /mnt