cisco2600で12.4

tftpからインストールを試みるが、
無理でした。(たぶんできない）

RAMが64Mbyteじゃ足りないみたい。

Error : memory requirements exceed available memory

ってな感じになる。

sh ver　は

2621-2#sh version
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IS-M)， Version 12.3(22)， RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by cisco Systems， Inc.
Compiled Wed 24-Jan-07 16:48 by ccai
Image text-base: 0x80008098， data-base: 0x81AB3AD4

ROM: System Bootstrap， Version 12.1(3r)T2， RELEASE SOFTWARE (fc1)
ROM: C2600 Software (C2600-I-M)， Version 12.3(20)， RELEASE SOFTWARE (fc2)

2621-2 uptime is 11 minutes
System returned to ROM by reload
System image file is "tftp://1.1.1.1/c2600-is-mz.123-22.bin"

cisco 2621 (MPC860) processor (revision 0x200) with
61440K/4096K bytes of memory.
Processor board ID JAD050303HR (2547596365)
M860 processor: part number 0， mask 49
Bridging software.
X.25 software， Version 3.0.0.
Basic Rate ISDN software， Version 1.1.
2 FastEthernet/IEEE 802.3 interface(s)
4 Low-speed serial(sync/async) network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102