Home HOW-TO How to reset the lost or forgotten root password in vCenter Server Appliance 6.5

How to reset the lost or forgotten root password in vCenter Server Appliance 6.5

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How to reset the lost or forgotten root password in vCenter Server Appliance 6.5

To reset the lost forgotten root password in vCenter Server Appliance 6.5:

  • Take a snapshot or backup of the vCenter Server Appliance 6.5 before proceeding. Do not skip this step.
  • Reboot the vCenter Server Appliance 6.5.
  • After the OS starts, press e key to enter the GNU GRUB Edit Menu.
  • Locate the line that begins with the word Linux.
  • Append these entries to the end of the line:
rw init=/bin/bash

The line should look like the following screenshot:

  • Press F10 to continue booting.
  • Run the mount -o remount,rw / command.
  • In the Command prompt, enter the command passwd and provide a new root password (twice for confirmation):
passwd
  • Unmount the filesystem by running this command:
umount /
  • Reboot the vCenter Server Appliance 6.5 by running this command:
reboot -f
  • Confirm that you can access the vCenter Server Appliance 6.5 using the new root password.
  • Remove the snapshot taken in Step 1 if applicable.