Cisco WS-C4500X-16 is going on ROMmon every time after rebooting.

[karinn001]

Hi,

I have a WS-C4500X-16 switch and its going in ROMmon mode every tome when i hard reboot it. Kindly suggest me what i need to do.

cisco#dir
Directory of bootflash:/

No files in directory

1692037120 bytes total (1691938816 bytes free).

cisco#show bootflash: all
-#- --length-- ---------date/time--------- path

1605988352 bytes available (98304 bytes used)
Filesystem: bootflash
Mounted: Unknown

show ver

Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSALK9-M), Version 03.06.04.E RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2016 by Cisco Systems, Inc.
Compiled Fri 12-Feb-16 22:40 by prod_rel_team

Cisco IOS-XE software, Copyright (c) 2005-2015 by cisco Systems, Inc.
All rights reserved. Certain components of Cisco IOS-XE software are
licensed under the GNU General Public License ("GPL") Version 2.0. The
software code licensed under GPL Version 2.0 is free software that comes
with ABSOLUTELY NO WARRANTY. You can redistribute and/or modify such
GPL code under the terms of GPL Version 2.0.
(http://www.gnu.org/licenses/gpl-2.0.html) For more details, see the
documentation or "License Notice" file accompanying the IOS-XE software,
or the applicable URL provided on the flyer accompanying the IOS-XE
software.

ROM: 15.0(1r)SG11
cisco uptime is 26 minutes
System returned to ROM by reload
System image file is "tftp://10.0.4.33/cat4500e-universalk9.SPA.03.06.04.E.152-2.E4.bin"
Jawa Revision 2, Winter Revision 0x0.0x41

Last reload reason: Reload command

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

License Information for 'WS-C4500X-16'
License Level: entservices Type: Permanent
Next reboot license Level: entservices

cisco WS-C4500X-16 (MPC8572) processor (revision 9) with 4194304K bytes of physical memory.
Processor board ID JAE193403N1
MPC8572 CPU at 1.5GHz, Cisco Catalyst 4500X
Last reset from Reload
1 Virtual Ethernet interface
16 Ten Gigabit Ethernet interfaces
511K bytes of non-volatile configuration memory.

Configuration register is 0x2101

[Leo Laohoo]

Configuration register is 0x2101

Disregard my previous post.  I know why the switch immediately goes into ROMmon.  Look at the config-registry, it states 0x2101.  Next, look at the contents of the bootflash of the appliance:  Empty. 

Config-registry value of 0x2101, particularly the last octet of "01", means "f*ck the boot variable string, boot the FIRST IOS in the bootflash".  Since there is no valid IOS file in the bootflash, the appliance goes into ROMmon.

[Geze2498]

It's a very interesting writing. i used to have same issue with my 4506-Sup6-E Switch,i was able to recover it using a TFTP server but it still goes to ROMMON mode every time it reboots. i tried changing the cofig-register to 0x2102 but it can't take any effect either.
Can you help me how to permanently fix it? here is how it looks...

Dist#sho ver
Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500e-ENTSERVICESK9-M), Version 12.2(53)SG2, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Tue 16-Mar-10 04:50 by prod_rel_team
Image text-base: 0x10000000, data-base: 0x12794974

ROM: 12.2(44r)SG10
Darkside Revision 4, Jawa Revision 20, Tatooine Revision 140, Forerunner Revision 1.78

Dist uptime is 36 minutes
System returned to ROM by reload
System image file is "bootflash:cat4500e-entservicesk9-mz.122-53.SG2.bin"
Last reload reason: Unknown reason

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

cisco WS-C4506-E (MPC8548) processor (revision 6) with 1048576K bytes of memory.
Processor board ID SPE153800C6
MPC8548 CPU at 1.33GHz, Supervisor 6-E
Last reset from Reload
500 Virtual Ethernet interfaces
52 Gigabit Ethernet interfaces
2 Ten Gigabit Ethernet interfaces
511K bytes of non-volatile configuration memory.

Configuration register is 0x2101 (will be 0x2102 at next reload)