How do I reset the root password on a live CD?

How do I reset the root password on a live CD?

Method

  1. Overview.
  2. Boot into the live distribution.
  3. Mount the root partition.
  4. chroot into the root partition.
  5. Change the root password.
  6. Exit from the chroot.
  7. Unmount the root partition.
  8. Directly editing the password file.

How do I reset a password in Linux?

From the official Ubuntu LostPassword documentation:

  1. Reboot your computer.
  2. Hold Shift during boot to start GRUB menu.
  3. Highlight your image and press E to edit.
  4. Find the line starting with “linux” and append rw init=/bin/bash at the end of that line.
  5. Press Ctrl + X to boot.
  6. Type in passwd username.
  7. Set your password.

How can I change my root password without knowing?

The steps are:

  1. restart your computer.
  2. press e at the grub menu.
  3. go to the line with begin with linux /boot.
  4. go after ro in this line.
  5. write init=/bin/bash.
  6. press Ctrl + X to boot up into root terminal.
  7. write mount -o remount, rw / and press ENTER.
  8. write passwd then ENTER.

Where is the root password stored in Linux?

Password hashes were traditionally stored in /etc/passwd , but modern systems keep the passwords in a separate file from the public user database. Linux uses /etc/shadow . You can put passwords in /etc/passwd (it’s still supported for backward compatibility), but you have to reconfigure the system to do that.

How do I reset my Suse Linux root password?

Here is how to reset a forgotten root password on Novell SUSE

  1. SLES boot menu.
  2. Select kernel line.
  3. Add init=/bin/bash one the end of the line.
  4. Use passwd to change root password.

How do I reset the root password on a Linux system?

If you have a Linux Live CD (or USB), then you can boot into it and use it to reset the root password, too. In our example we will use a Ubuntu Live CD. 1.

What should I do if I Forgot my root password?

You should also consider isolating the machine from any networks while it is without a root password, as it will obviously be very insecure during this period. The ‘x’ should be re-inserted before setting a new root password, otherwise it will be stored in /etc/passwd instead of /etc/shadow.

How to change a user’s password in Linux?

Now you should be able to use the passwd command to change your user account’s password, and it will be applied to the hard drive since we are using chroot. Note that you’ll have to type your username after the passwd command in order to change the right password.

How do I change the password on a chroot drive?

This command is used to open up a shell with a different root directory than the current shell is using, and we’ll pass in the folder where we mounted the hard drive. Now you should be able to use the passwd command to change your user account’s password, and it will be applied to the hard drive since we are using chroot.

author

Back to Top