Difficulty while upgrading IOS - new flash drive - Cisco 2600

dearbibek

I recently upgraded my cisco 2600 router with 32MB flash. I downloaded 13.6 MB IOS (12.4 version) file in it; however, when I try to boot with it. It keeps giving me error saying memory exceeded. Any idea how to fix it or the problem ?

rommon 5 > dir flash:
File size Checksum File name
13650264 bytes (0xd0495 0x2fd2 c2600-ipbasek9-mz124-23.bin
rommon 6 >

rommon 6 > meminfo

Main memory size: 32 MB.
Available main memory starts at 0x10000, size 32704KB
IO (packet) memory size: 0 percent of main memory.
NVRAM size: 32KB
rommon 7 >

rommon 7 > reset

System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
Copyright (c) 2000 by cisco Systems, Inc.
C2600 platform with 32768 Kbytes of main memory

program load complete, entry point: 0x80008000, size: 0xd047b8

Error : memory requirements exceed available memory
Memory required : 0x0219D1E8

*** System received a Software forced crash ***
signal= 0x17, code= 0x4, context= 0x800805d0
PC = 0x0, Vector = 0x0, SP = 0x0

clarson

you do have enough flash. But, not enough dram. You only have 32mb. Usually you need 4 times the ios size. So, most people have ram 4x the size of flash. Basically, you have 13.6mb for the ios. It is compressed. uncompressed takes like twice the compressed size. So, that is 27mb. Then you need io buffer space to preform io and you need memory space for routing tables, etc. And, 32 mb of ram doesn't cut it.

Memory required : 0x0219D1E8 That is about 36mb.