Contents

Introduction

Problem

Solution

Related Information

Introduction

This document describes a problem and solution about Catalyst 9000 Series Switches that fail to boot normally and fall into the bootloader prompt.

Problem

Chassis 2 reloading. Reason is Active/Standby selection failed in 1+1 Mode.

switch: boot

attempting to boot from [flash:packages.conf]

Located file packages.conf

#

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

Validate packages: SHA-1 hash:

calculated 550C9730:667B2788:DD6F6B06:D0FFA819:01A315DA

expected 550C9730:667B2788:DD6F6B06:D0FFA819:01A315DA

Both links down, not waiting for other switches

Switch number is 2

Chassis 2 reloading, reason - Active/standby selection failed in 1+1 Mode                  <<<<<<

Feb 19 20:06:55.572 FP0/0: %PMAN-5-EXITACTION: Process manager is exiting: reload fp action requested

Feb 19 20:06:57

Initializing Hardware...

System Bootstrap, Version 16.6.1r [FC1], RELEASE SOFTWARE (P)

Compiled Sat 07/15/2017 8:31:57.39 by rel

Current image running:

Primary Rommon Image

Last reset cause: SoftwareReload

C9300-48U platform with 8388608 Kbytes of main memory

attempting to boot from [flash:packages.conf]

Located file packages.conf

#

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

Validate packages: SHA-1 hash:

calculated 550C9730:667B2788:DD6F6B06:D0FFA819:01A315DA

expected 550C9730:667B2788:DD6F6B06:D0FFA819:01A315DA

Another way to identify this problem is to look at the STACK 1+1 bootloader variable with the use of the set command in bootloader mode. To get the switch in bootloader mode, click the mode button while the switch starts to boot up.

switch: set

ABNORMAL_RESET_COUNT=0

AUTOREBOOT_RESTORE=1

BOARDID=20569

BOOT=flash:packages.conf

BSI=0

MAC_ADDR=00:ab:cd:ef:01

MANUAL_BOOT=yes

MODEL_NUM=C9300-48UXM

MODEL_REVISION_NUM=D0

MOTHERBOARD_ASSEMBLY_NUM=73-17959-06

MOTHERBOARD_REVISION_NUM=A0

MOTHERBOARD_SERIAL_NUM=XXXXXXXXXXX

RANDOM_NUM=1901228755

RET_2_RCALTS=

ROMMON_AUTOBOOT_ATTEMPT=3

STACK_1_1=2_0                      <<<<<<<

SWITCH_IGNORE_STARTUP_CFG=1

SWITCH_NUMBER=2

SYSTEM_SERIAL_NUM=XXXXXXXXXXXX

TEMPLATE=access

VERSION_ID=V01

switch:

Solution

Unset the Stack 1+1 variable. After, this switch is able to boot normally.

switch:unset STACK_1_1

switch: set

ABNORMAL_RESET_COUNT=0

AUTOREBOOT_RESTORE=1

BOARDID=20569

BOOT=flash:packages.conf

BSI=0

MAC_ADDR=00:ab:cd:ef:01

MANUAL_BOOT=yes

MODEL_NUM=C9300-48UXM

MODEL_REVISION_NUM=D0

MOTHERBOARD_ASSEMBLY_NUM=73-17959-06

MOTHERBOARD_REVISION_NUM=A0

MOTHERBOARD_SERIAL_NUM=XXXXXXXXXXX

RANDOM_NUM=1901228755

RET_2_RCALTS=

ROMMON_AUTOBOOT_ATTEMPT=3

SWITCH_IGNORE_STARTUP_CFG=1

SWITCH_NUMBER=2

SYSTEM_SERIAL_NUM=XXXXXXXXXX

TEMPLATE=access

VERSION_ID=V01

switch:

Once the Stack 1+1 bootloader variable is unset, then issue the boot command so that switch can boot from the boot variable set on the switch.

switch: boot

attempting to boot from [flash:packages.conf]

Located file packages.conf

#

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

Validate packages: SHA-1 hash:

calculated 550C9730:667B2788:DD6F6B06:D0FFA819:01A315DA

expected 550C9730:667B2788:DD6F6B06:D0FFA819:01A315DA

Both links down, not waiting for other switches

Switch number is 2

Related Information

For information about the Stack 1+1 mode, refer to 1:1 Redundancy.