Re: Catalyst 2950 Cannot load IOS

bbbbalcoba · ‎05-24-2020

Hi there,

I been having this trouble in my C2950 after I emplemented vtp, I think i've missed someting to hit enter key and rebooted switch. Here below is the statement during the switch on the process of booting:

POST: FRONT-END LOOPBACK TEST : Passed
cisco WS-C2950-24 (RC32300) processor (revision R0) with 21039K bytes of memory.
Processor board ID FOC0938Z14P
Last reset from system-reset
Running Standard Image
24 FastEthernet/IEEE 802.3 interface(s)

32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:15:63:A9:A3:C0
Motherboard assembly number: 73-5781-13
Power supply part number: 34-0965-01
Motherboard serial number: FOC09371PEL
Power supply serial number: DAB0936F99Q
Model revision number: R0
Motherboard revision number: A0
Model number: WS-C2950-24
System serial number: FOC0938Z14P
00:00:14: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
00:00:16: %SYS-5-CONFIG_I: Configured from memory by console
00:00:17: %SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2005 by cisco Systems, Inc.
Compiled Wed 23-Mar-05 15:33 by yenanh
00:00:17: %SNMP-5-COLDSTART: SNMP agent on host BULAGA is undergoing a cold start
00:00:17: %LINK-5-CHANGED: Interface Vlan1, changed state to administratively down
00:00:18: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down

Hope anyone can help.

Thanks

Naresh Murali · ‎05-25-2020

Hi,

Could you please provide the "show logging" output. That will tell us what exactly happened. Additionally did you see any crashinfo file during the time of issue?

Regards

Naresh M

Richard Burts · ‎05-25-2020

I am not clear what the issue is. The title of the post suggests that it is not loading the IOS. But the partial output of the boot process does not show an error that I can detect. Can you clarify what the issue is? Perhaps a more complete set of the messages during the boot process would help?

HTH

Rick

bbbbalcoba · ‎05-26-2020

Hi Richard,
Thanks for your comment.
I had tried uploaded image of flash thru xmodem and its completed the
initialization and I was able to access the CLI which made it save to the
configutaion to NVRAM( applied command copy running-config startup-config).
But unfortunately after I issued "reload" which normaly after the hardware
bootsup I can access the CLI but I does not, It came back again in its
previous problem.
Please see below for the statement with... " 00:00:17: %SNMP-5-COLDSTART:
SNMP agent on host VSAT is undergoing a cold start", after its
hanged /stays in there.

IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA14, RELEASE
SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by cisco Systems, Inc.
Compiled Tue 26-Oct-10 10:35 by nburra
00:00:17: %SNMP-5-COLDSTART: SNMP agent on host VSAT is undergoing a cold
start

Btw, I found this switch on our company stock room and took it for practice
on my preparation taking cert. exam.

bbbbalcoba · ‎05-26-2020

Hi Naresh,
After I loaded flash image thru xmodem procedure, I was able to access the CLI and made some basic cosmetics on the switch configuration. Save the config in NVRAM but after I issued "reload" it came back to its previous problem.
Please see below on the boot process which stops with last statement of "00:00:17: %SNMP-5-COLDSTART: SNMP agent on host VSAT is undergoing a cold start":
C2950 Boot Loader (C2950-HBOOT-M) Version 12.1(11r)EA1, RELEASE SOFTWARE (fc1)
Compiled Mon 22-Jul-02 17:18 by antonino
WS-C2950-24 starting...
Base ethernet MAC Address: 00:15:63:a9:a3:c0
Xmodem file system is available.
Initializing Flash...
flashfs[0]: 4 files, 1 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 7741440
flashfs[0]: Bytes used: 3136000
flashfs[0]: Bytes available: 4605440
flashfs[0]: flashfs fsck took 6 seconds.
...done initializing flash.
Boot Sector Filesystem (bs:) installed, fsid: 3
Parameter Block Filesystem (pb:) installed, fsid: 4
Loading "flash:c2950-i6q4l2-mz.121-22.EA14.bin"...########################################################################################################################################################################################################

File "flash:c2950-i6q4l2-mz.121-22.EA14.bin" uncompressed and installed, entry point: 0x80010000
executing...

Restricted Rights Legend

Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.

cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706

Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA14, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by cisco Systems, Inc.
Compiled Tue 26-Oct-10 10:35 by nburra
Image text-base: 0x80010000, data-base: 0x80570000

Initializing flashfs...
flashfs[1]: 4 files, 1 directories
flashfs[1]: 0 orphaned files, 0 orphaned directories
flashfs[1]: Total bytes: 7741440
flashfs[1]: Bytes used: 3136000
flashfs[1]: Bytes available: 4605440
flashfs[1]: flashfs fsck took 7 seconds.
flashfs[1]: Initialization complete.
Done initializing flashfs.
POST: System Board Test : Passed
POST: Ethernet Controller Test : Passed
ASIC Initialization Passed

POST: FRONT-END LOOPBACK TEST : Passedcisco WS-C2950-24 (RC32300) processor (revision R0) with 20956K bytes of memory.
Processor board ID FOC0938Z14P
Last reset from system-reset
Running Standard Image
24 FastEthernet/IEEE 802.3 interface(s)

32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:15:63:A9:A3:C0
Motherboard assembly number: 73-5781-13
Power supply part number: 34-0965-01
Motherboard serial number: FOC09371PEL
Power supply serial number: DAB0936F99Q
Model revision number: R0
Motherboard revision number: A0
Model number: WS-C2950-24
System serial number: FOC0938Z14P
00:00:14: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
00:00:16: %SYS-5-CONFIG_I: Configured from memory by console
00:00:17: %SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA14, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by cisco Systems, Inc.
Compiled Tue 26-Oct-10 10:35 by nburra
00:00:17: %SNMP-5-COLDSTART: SNMP agent on host VSAT is undergoing a cold start

Realy appreciate your help.

Regards

Martin L · ‎05-25-2020

is this from Console window or Telnet window? if this is from telnet, Connect via Console to switch;
there are steps to boot to switch mode (aka Rommon mode) and check flash and files or set switch to skip config on boot. If I find instructions , i will post it here (this is old switch and cisco removes older instructions)

bbbbalcoba · ‎05-26-2020

Hi Martin,
Yes, its thru console port on switch.

Thanks and Regards,