Forgot your password?

QNX SDP8.0User's GuideUser

If you forget your password, ask the system administrator (root user) to assign a new password to your account. Only root can do this.

In general, no one can retrieve your old password from the /etc/shadow file. If your password is short or a single word, your system administrator—or a hacker—can easily figure it out, but you're better off with a new password.

If you're the system administrator, and you've forgotten the password for root, you need to find an alternate way to access the /etc/passwd and /etc/shadow files in order to reset the root password. Some possible ways to do this are:

  • Boot the system from another disk or device where you can log in as root, and from there manually reset the password.
  • Remove the media on which the /etc/passwd and /etc/shadow are stored and install it on another QNX OS machine from which you can modify the files.
  • In the case of an embedded system, build a new image that contains new passwd and shadow files, and then transfer it to your target system.
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