求助6509升级方案

lihuang_520

现有一台6509 需要升级IOS

配置为两块sup2 引擎板，双冗余 ，
一块ws6416-GBIC光纤
一块 ws-6348板卡

shwo version 如下：
现想升级IOS 大家有没有最新最稳定的IOS 版本号咯。 按下的配置怎么个升级法？？

C6509_21_L3#dir
Directory of bootflash:/

    1  -rw-     1600884   Feb 12 2001 21:35:30  c6msfc2-boot-mz.121-3a.E4
    2  -rw-    13052404   Jun 16 2006 06:14:40  c6msfc2-jsv-mz.121-12c.E2


C6509_21_L3#  sh version
Cisco Internetwork Operating System Software
IOS (tm) MSFC2 Software (C6MSFC2-JSV-M), Version 12.1(12c)E2, EARLY DEPLOYMENT RELEASE

SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Thu 22-Aug-02 17:01 by eaarmas
Image text-base: 0x40008980, data-base: 0x4198E000

ROM: System Bootstrap, Version 12.1(3r)E2, RELEASE SOFTWARE (fc1)
BOOTLDR: MSFC2 Software (C6MSFC2-BOOT-M), Version 12.1(3a)E4, EARLY DEPLOYMENT RELEASE

SOFTWARE (fc1)

C6509_21_L3 uptime is 48 weeks, 3 days, 2 hours, 11 minutes
System returned to ROM by power-on
Running default software

cisco Cat6k-MSFC2 (R7000) processor with 114688K/16384K bytes of memory.
Processor board ID SAD050605V6
R7000 CPU at 300Mhz, Implementation 39, Rev 2.1, 256KB L2, 1024KB L3 Cache
Last reset from power-on
Bridging software.
X.25 software, Version 3.0.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
--More--         TN3270 Emulation software.
30 Virtual Ethernet/IEEE 802.3  interface(s)
509K bytes of non-volatile configuration memory.

16384K bytes of Flash internal SIMM (Sector size 512K).
Configuration register is 0x102