Reset OS10 Admin Password

Video: https://youtu.be/0VfJCa8s7yo

Connect to the serial console port. The serial settings are 115,200 baud, 8 data bits, and no parity.
Reboot or power up the system.

Press ESC at the Grub prompt to view the boot menu. The OS10-A partition is selected by default.

+-------------------------------------+
|*OS10-A                              |
| OS10-B                              |
| ONIE                                |
+-------------------------------------+

Press e to open the OS10 GRUB editor. 1.Use the arrow keys to navigate to the end of the line that has set os_debug_args= and then add init=/bin/bash.

    +---------------------------------------------------------+
    |setparams 'OS10-A'                                       |
    |                                                         |
    | set os_debug_args="init=/bin/bash"                      |       
    | select_image A                                          |
    | boot_os                                                 |
    |                                                         |
    +---------------------------------------------------------+

Press Alt + 0. The system boots to a root shell without a password.
At the root prompt run passwd admin and set the password to whatever you want
Run reboot -f to reboot the system
When the system reboots log into the admin account with your new password. That password is temporary and is not permanently written to the system.
Enter configuration mode with configure terminal and then run username admin password <YOURPASSWORD> role sysadmin to change the password
Run write memory to make the changes permanent.

Startup Config Location

/config/etc/opt/dell/os10/db_init/startup.xml