How to Reset root Password of NetScaler SDX Running on XenServer

This article describes how to reset the root password of NetScaler SDX running on XenServer.

Background

For both XenServer and the XenServer component of a NetScaler SDX, a lost root password can be overwritten through the use of “linux single user mode” access. The purpose of single user is to utilize physical access to the host, reboot it, pass in temporary kernel flags, and boot directly into the single user (root) shell. From there, the root password can be set to a known token. The host must be rebooted for the changes to take affect.

Points to Note

You will require physical access (iLO, DRAC, console, or physical console) to the XenServer to complete this procedure.

The following are some of the points to note before starting this procedure:

  • At least two reboots will be required to complete this procedure.
  • The entire process should take no more than 10 minutes.
  • Read the instructions in their entirety as there is a small window of time to interact with the boot process.

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