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New Member

IOS upgrade on Cisco 871to IOS 12.4(6)T fails

Today I have done test upgrade to IOS 12.4(6)T on one of our Cisco 871 routers. I have loaded new IOS c870-advipservicesk9-mz.124-6.T.bin and restarted router. When router rebooted I received following error:

Booting flash:/c870-advipservicesk9-mz.124-6.T.bin

ELF Loader: read error

Elf loader error

and got stuck in rommon. Does anybody know what could be the problem?

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

System Bootstrap, Version 12.3(8r)YI, RELEASE SOFTWARE

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2005 by cisco Systems, Inc.

C870 series (Board ID: 3-148) platform with 131072 Kbytes of main memory

  • Remote Access
6 REPLIES

Re: IOS upgrade on Cisco 871to IOS 12.4(6)T fails

Briefly checked the system requirements for 12.4-6.T.

According to the datasheet adv ip services requires 28Mb flash but a standard router only holds 24Mb:

http://www.cisco.com/en/US/products/hw/routers/ps380/products_data_sheet0900aecd8028a976.html

Did you check this requirement and is the existing router licensed for adv ip? My guess is that the image does not fit in your flash. You must have observed some errors while performing the upgrade?

Regards,

Leo

New Member

Re: IOS upgrade on Cisco 871to IOS 12.4(6)T fails

I have purchased additional 16Mb of flash when I got router. Something else must be wrong.

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

Cisco 871 (MPC8272) processor (revision 0x100) with 118784K/12288K bytes of memory.

Processor board ID FHK092511T8

MPC8272 CPU Rev: Part Number 0xC, Mask Number 0x10

5 FastEthernet interfaces

128K bytes of non-volatile configuration memory.

36864K bytes of processor board System flash (Intel Strataflash)

Configuration register is 0x2102

New Member

Re: IOS upgrade on Cisco 871to IOS 12.4(6)T fails

hi, mocah

I also meet the same problem as yours.

I dont know how to fix it.

Have you already fix your router ? Can you help me resolve this problem?

Thx.The output in ROMMON,I paste it below.

----------------------------------------------

rommon 29 > tftpdnld

IP_ADDRESS: 10.10.10.1

IP_SUBNET_MASK: 255.255.255.0

DEFAULT_GATEWAY: 10.10.10.2

TFTP_SERVER: 10.10.10.2

TFTP_FILE: c850-advsecurityk9-mz.124-15.T1.bin

Do you wish to continue? y/n: [n]: y

Receiving c850-advsecurityk9-mz.124-15.T1.bin from 10.10.10.2 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

File reception completed.

TFTP flash copy: Warning, checksum comparison failed

Do you wish to continue anyway? y/n: [n]: y

Writing flash:/c850-advsecurityk9-mz.124-15.T1.bin

Write operation will take approximately 77 to 232 seconds

rommon 30 > dir flash:

Directory of flash:/

2 -rwx 0 c850-advsecurityk9-mz.124-6.T5.bin

3 -rwx 2077 sdmconfig-8xx.cfg

4 -rwx 812032 es.tar

5 -rwx 1007616 common.tar

6 -rwx 1038 home.shtml

7 -rwx 113152 home.tar

8 -rwx 1782784 wlanui.tar

9 -rwx 234040 attack-drop.sdf

10 -rwx 203061 crashinfo_20020303-174147

11 -rwx 12630768 c850-advsecurityk9-mz.124-15.T1.bin

2549760 bytes available (16803840 bytes used)

rommon 31 > boot flash:/c850-advsecurityk9-mz.124-15.T1.bin

Booting flash:/c850-advsecurityk9-mz.124-15.T1.bin

ELF Loader: read error

Elf loader error

rommon 32 > boot

Booting flash:/c850-advsecurityk9-mz.124-15.T1.bin

ELF Loader: read error

Elf loader error

rommon 33 >

------------------------------------------

Cheers

Re: IOS upgrade on Cisco 871to IOS 12.4(6)T fails

That is typically the sign of one of the following items:

1) corrupt IOS image - re-download the image from Cisco

2) bad DRAM - replace or try different DRAM

3) bad flash - replace or try different flash

4) bad mainboard DRAM - in this case you are SOL

5) wrong IOS version for the device

pick your poison, but it's one of the above.

-brad

www.ccbootcamp.com

(please rate the post!)

New Member

Re: IOS upgrade on Cisco 871to IOS 12.4(6)T fails

Yes i have fix it. Unfortunately I don't remember how. I think that I have completely erased flash memory and than upload IOS image again. Which router do you have? Also download IOS again from Cisco web site.

New Member

Re: IOS upgrade on Cisco 871to IOS 12.4(6)T fails

My router is cisco 857 W. Did you format your flash? Is FORMAT dangerous for router's flash? I am afraid I may destory flash memory.

I have downloaded the c850-advsecurityk9-mz.124-15.T1.bin.

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