I have a Cisco 2500 (2514) router. It has 16MB of flash and 24MB of DRAM. However, I am not able to upgrade the router with 12.1(19) IOS. The minimum memory requirements for this image is 16MB Flash and 8MB of RAM. It load the the image fine, but when I reload the router, I get this message:
SYSTEM INIT: "INSUFFICEINT MEMORY TO BOOT THE IMAGE"
Any idea why?
Here is the show version output from bootmode. I had to change the register to 2101 to boot from the bootimage.
Cisco Internetwork Operating System Software
IOS (tm) 3000 Bootstrap Software (IGS-RXBOOT), Version 10.2(8a), RELEASE SOFTWAR
E (fc1)
Copyright (c) 1986-1995 by cisco Systems, Inc.
Compiled Tue 24-Oct-95 15:46 by mkamson
Image text-base: 0x01020000, data-base: 0x00001000
ROM: System Bootstrap, Version 5.2(8a), RELEASE SOFTWARE
RouterA uptime is 0 minutes
System restarted by power-on
Running default software
cisco 2500 (68030) processor (revision D) with 1020K/1024K bytes of memory.
Processor board serial number 03946835 with hardware revision 00000000
X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.
2 Ethernet/IEEE 802.3 interfaces.
2 Serial network interfaces.
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
Configuration register is 0x2101
