7600 720 supervisora goes to rommon after any reset event

g3doubt · ‎02-12-2021

Two supervisors 720 (Act/STBY) goes to rommon after any event of switover, energy failure or resetand manually insert de boot command on rommon to boot the supervisors

The bootvar on both of the seems to be good and the confregister is 2102.

PE_MAD_2#show redundancy
Redundant System Information :
------------------------------
Available system uptime = 2 weeks, 6 days, 3 hours, 5 minutes
Switchovers system experienced = 2
Standby failures = 0
Last switchover reason = user initiated

Hardware Mode = Duplex
Configured Redundancy Mode = sso
Operating Redundancy Mode = sso
Maintenance Mode = Disabled
Communications = Up

Current Processor Information :
-------------------------------
Active Location = slot 6
Current Software state = ACTIVE
Uptime in current state = 18 minutes
Image Version = Cisco IOS Software, c7600rsp72043_rp Software (c7600rsp72043_rp-ADVENTERPRISEK9-M), Version 15.5(3)S7, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2018 by Cisco Systems, Inc.
Compiled Wed 07-Feb-18 19:20 by prod_rel_team
BOOT = sup-bootdisk:c7600rsp72043-adventerprisek9-mz.155-3.S7.bin,12;sup-bootdisk:c7600rsp72043-adventerprisek9-mz.153-3.S6.bin,12;
CONFIG_FILE =
BOOTLDR =
Configuration register = 0x2102

Peer Processor Information :
----------------------------
Standby Location = slot 5
Current Software state = STANDBY HOT
Uptime in current state = 8 minutes
Image Version = Cisco IOS Software, c7600rsp72043_rp Software (c7600rsp72043_rp-ADVENTERPRISEK9-M), Version 15.5(3)S7, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2018 by Cisco Systems, Inc.
Compiled Wed 07-Feb-18 19:20 by prod_rel_team
BOOT = sup-bootdisk:c7600rsp72043-adventerprisek9-mz.155-3.S7.bin,12;sup-bootdisk:c7600rsp72043-adventerprisek9-mz.153-3.S6.bin,12;
CONFIG_FILE =
BOOTLDR =
Configuration register = 0x2102

I tried to enforce the register on rommon on route processor and switch processor and the problem continues

I also tried making this changes on the boot var after I copy the image to that location :

boot system flash bootdisk:c7600rsp72043-adventerprisek9-mz.155-3.S7.bin

Does anybody have a workaroud to prevent this situation?

Leo Laohoo · ‎02-12-2021

Console into the secondary and reboot the secondary Sup.

Post the entire boot-up process.

g3doubt · ‎02-15-2021

Hi,

Here is the ouput

PE_MAD_2 con0 is now available

Press RETURN to get started.

System Bootstrap, Version 12.2(33r)SRD5, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2009 by cisco Systems, Inc.
C7600-RSP720/SP platform with 2097152 Kbytes of main memory

rommon 1 > confreg [2~x[B[4~[2~[B 0x2102
usage: [<hexval>]
rommon 2 > [A[Bconfreg 0x21202 02

monitor: command "[A[Bconfreg" not found

rommon 3 > dir
usage: dir <device>
rommon 4 > confreg 0x2102

You must reset or power cycle for new config to take effect
rommon 5 > reset

Resetting .......

I also notice this:

[2021-02-12 17:03:29.775] PE_MAD_2#remote command switch show boot
[2021-02-12 17:03:30.091]
[2021-02-12 17:03:30.094] BOOT variable = bootdisk:c7600rsp72043-adventerprisek9-mz.155-3.S7.bin,1;bootdisk:c7600rsp72043-adventerprisek9-mz.153-3.S6.bin,1;
[2021-02-12 17:03:30.095] CONFIG_FILE variable does not exist
[2021-02-12 17:03:30.096] BOOTLDR variable does not exist
[2021-02-12 17:03:30.098] Configuration register is 0x0

The configuration register shows 0x0 even when the command config-register 0x2102 and saved the configuration

Leo Laohoo · ‎02-16-2021

Change the config-registry value to 0x2101 and reboot.

Post the entire boot-up process. If this cannot be done, then raise a TAC Case.