Contents

Introduction

Prerequisites

Requirements

Components Used

Background Information

Procedure

Introduction

This document describes the recovery procedure to be followed when the admin password is lost.

Prerequisites

Requirements

Cisco recommends that you have knowledge of these topics:

- Cisco Firepower FXOS

- Password-recovery requires serial console access and the ability to power-on the FPR 2100 device.

Components Used

The information in this document is based on FPR 2100 series version 1.0.00 or higher.

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, ensure that you understand the potential impact of any command.

Background Information

The current Firepower Extensible Operating System (FXOS) version reimages the box when this flow is invoked. All configuration data can be lost. To factory reset the device, connect to FXOS and local-mgmt and issue erase configuration.

Procedure

Step 1. Power-cycle the Firepower21xx device. You have 10 seconds to interrupt the ROMMON default boot sequence with a press of the ESC key.

*******************************************************************************

Cisco System ROMMON, Version 1.0.00, RELEASE SOFTWARE

Copyright (c) 1994-2017  by Cisco Systems, Inc.

Compiled Tue 01/03/2017 23:55:11.41 by builder

*******************************************************************************

Current image running: Boot ROM0

Last reset cause: ResetRequest

DIMM_1/1 : Present

DIMM_2/1 : Present

Platform FPR-2130 with 32768 MBytes of main memory

BIOS has been successfully locked !!

MAC Address: 0c:75:bd:08:c8:00

Use BREAK or ESC to interrupt boot.

Use SPACE to begin boot immediately.

Boot interrupted.

rommon 1 >

Step 2. Invoke the password_reset ROMMON command.

Warning: This command performs a reimage on the Firepower 21xx appliance, and erases the ASA configuration.

rommon 1 > password_reset

WARNING: User configurations can be lost with this operation

Are you sure ? yes/no [no]: yes

Enabling password reset..

Please continue to boot the image !

rommon 2 >

Tip: For ROMMON version 1.0.04 and earlier, use the password_reset command. This command was changed to factory-reset in later versions.

To validate your actual ROMMON version, use this command:

rommon 1 > show info

Cisco System ROMMON, Version 1.0.06, RELEASE SOFTWARE

Copyright (c) 1994-2018 by Cisco Systems, Inc.

Compiled Wed 11/01/2018 18:38:59.66 by builder

Step 3. Boot the device and invoke the boot command. You can use the default image or specify a different image to boot.

Note: It can take about 20-40 minutes (depends on the model) to complete the process.

rommon 3 > boot

Located '.boot_string' @ cluster 648129.

#

Located 'installables/switch/fxos-k8-fp2k-lfbff.2.2.1.29.SPA' @ cluster 404198.

################################################################################

################################################################################

<skipped>

INIT: version 2.88 booting

Starting udev

Configuring network interfaces... done.

Populating dev cache

Starting Power Off Shutdown Handler (poshd)

poshd: using FPGA version 1.0.00 and PSEQ version 2.11

Primary SSD discovered

eMMC Flash not detected; retrying

eMMC Flash not detected; retrying

eMMC Flash not detected; retrying

Rommon requested SSD reformat

Formating SSD...

Creating config partition: START: 1MB END: 1001MB

mke2fs 1.42.8 (20-Jun-2013)

Discarding device blocks: done

Filesystem label=

OS type: Linux

Block size=4096 (log=2)

Fragment size=4096 (log=2)

Stride=0 blocks, Stripe width=0 blocks

61056 inodes, 244224 blocks

12211 blocks (5.00%) reserved for the super user

First data block=0

Maximum filesystem blocks=251658240

8 block groups

32768 blocks per group, 32768 fragments per group

7632 inodes per group

Superblock backups stored on blocks:

32768, 98304, 163840, 229376

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[/sbin/fsck.vfat (1) -- /dev/sdc1] fsck.vfat -a /dev/sdc1

dosfsck 2.11, 12 Mar 2005, FAT32, LFN

/dev/sdc1: 47 files, 616932/1937459 clusters

fsck(/dev/sdc1) returned 0

Running postinst /etc/rpm-postinsts/100-apache2...

Running postinst /etc/rpm-postinsts/101-syslog-ng...

Running postinst /etc/rpm-postinsts/102-bind...

INIT: Entering runlevel: 3un-postinsts exists during rc.d purge

Starting system message bus: dbus.

Starting OpenBSD Secure Shell server: sshd

done.

Starting rpcbind daemon...done.

starting statd: done

Starting Advanced Configuration and Power Interface daemon: acpid.

acpid: starting up

After the appliance is rebooted, use the default credentials admin/Admin123 to connect, once the log in prompt is available. The same credentials can be used once Firepower Device Manager (FDM) and Firepower Chassis Manager (FCM) are ready.