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Community Member

IOS memory Requirements precisions


I want to upgrade my router in IOS 12.3;at the upgrade planner it is indicate 16MB flash minimum and the size( next URL) it is indicate 16,300MB.

The upgrade abort with 16Mb of flash with the message "not enough space".

What précisions are the memory requirements at the CCO ? Is it a error on the upgrade planner..

Thanks for your help.



Re: IOS memory Requirements precisions


Can u post out the url and also the IOS naming details over here ??

from my personal exp we do follow the software advisor and other tools here to get reqd ios features onto our box...

and i feel thats the exp with other peopl too ..


Re: IOS memory Requirements precisions


The file size mentioned over there is in bytes once you get converted to Mega bytes it will be able to fit into the 16MB flash as presricbed in the first link.

I would suggest to post the show version and show flash output of your router here..


Community Member

Re: IOS memory Requirements precisions


here is the show version:

show version ------------------

Cisco Internetwork Operating System Software

IOS (tm) C2600 Software (C2600-IO3-M), Version 12.3(15b), RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2005 by cisco Systems, Inc.

Compiled Thu 25-Aug-05 13:39 by ssearch

Image text-base: 0x80008098, data-base: 0x80D548D4

ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)

Router uptime is 17 minutes

System returned to ROM by power-on

System image file is "flash:c2600-io3-mz.123-15b.bin"

cisco 2621 (MPC860) processor (revision 0x102) with 58368K/7168K bytes of memory.

Processor board ID JAB04130629 (1105519758)

M860 processor: part number 0, mask 49

Channelized E1, Version 1.0.

Bridging software.

X.25 software, Version 3.0.0.

Primary Rate ISDN software, Version 1.1.

2 FastEthernet/IEEE 802.3 interface(s)

1 Serial network interface(s)

2 Serial(sync/async) network interface(s)

1 Channelized E1/PRI port(s)

32K bytes of non-volatile configuration memory.

16384K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102


Re: IOS memory Requirements precisions


Are you trying to load up this new image after erasing the earlier one or doing normal clean upload ??

if u do it without erasing the older ios which is lying in ther i dont think u will be able to load it up succesfully.

But do remember to backup the older ios and erase it and try loading the new ios file..

also u didnt post out the show flash o/p here.


Community Member

Re: IOS memory Requirements precisions


I want to upgrade in other feature in 12.3.15B,

here is the upgrade trace:

Router#dir flash:

Directory of flash:/

No files in directory

16252924 bytes total (16252924 bytes free)


Router#copy tftp: flash:

Address or name of remote host []?

Source filename [c2600-ik9o3s3-mz.123-15b.bin]?

Destination filename [c2600-ik9o3s3-mz.123-15b.bin]?

Accessing tftp://

Erase flash: before copying? [confirm]

Erasing the flash filesystem will remove all files! Continue? [confirm]

Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erasedee

Erase of flash: complete

Loading c2600-ik9o3s3-mz.123-15b.bin from (via FastEthernet0/0): !

%Error copying tftp:// (Not enough space on device)


I am thing that I must upgrade the flash memory but I want that CCO change the memory requirement on this image .



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