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通过CLI升级CiscoCatalyst2900

发布时间:2009-06-01 00:48:37  来源:本站整理
【摘要】: 通过CLI升级CiscoCatalyst2900

  用TFTP通过CLI(Command Line Interface)升级Cisco Catalyst 2900.XL/3500.XL 交换机IOS
  升级前需要留意事项:
  1, 留意switch上的DRAM (Dynamic Random Access Memory) 及 Flash 的大小。每个IOS都对DRAM及Flash有一定要求,在升级之前必须要确定DRAM及Flash的大小。
  确定DRAM的大小可以通过命令show version,如
  有 8 MB DRAM 的 2900XL switch:
  Switch#show version
  Cisco Internetwork Operating System Software
  IOS (TM) C2900XL Software (C2900XL.C3H2S.M), Version 12.0(5)XU, RELEASE SOFTWARE)
  Copyright (c) 1986.2000 by cisco Systems, Inc.
  Compiled Mon 03.Apr.00 16:37 by swati
  Image text.base: 0x00003000, database: 0x00301398
  ROM: Bootstrap program is C2900XL boot loader
  2900XL_84.3 uptime is 27 minutes
  System returned to ROM by reload
  System image file is "flash:c2900XL.c3h2s.mz.120_5.XU.bin"
  cisco WS.C2924M.XL (PowerPC403GA) processor (revision 0x11) with 8192K/1024K bytes of memory.
  Processor board ID 0x10, with hardware revision 0x03
  Last reset from warm.reset
  ...(output suppressed)
  信息显示在交换机上有 8192K DRAM 即 8 MB DRAM
  确定FLASH的大小可以通过命令dir flash 如:
  switch:dir flash:
  (This command is only run if you are at the switch: prompt and want to determine how big the flash
  Directory of flash:/
  2 .r.. 2535 config.text
  4 .rwx 1644160 c2900XL.c3h2s.mz.120_5.XU.bin
  5 .r.. 960 vlan.dat
  6 .r.. 19 env_vars
  1963008 bytes available (1649664 bytes used)
  
  2, 下载合适的IOS。通常交换机的IOS有两种文件,一种以tar结尾,另外一种以bin结尾。
  结尾 特点
  .tar(压缩文件) ?包含bin文件,boot机文件?包含Html文件,用于web形式治理交换机
  .bin 单独IOS文件不包含HTML文件,可以通过TFTP拷贝到交换机上
  升级步骤:
  1, 进入EXEC模式:
  switch> enable
  switch#
  2, 显示boot机参数
  switch# show boot
  BOOT path.list: flash:current_image
  Config file: flash:config.text
  Enable Break: 1
  Manual Boot: no
  HELPER path.list:
  NVRAM/Config file
  buffer size: 32768
  3, 若BOOT path.list为空, 可以通过dir flash: 去显示以bin结尾的文件
  Switch# dir flash:
  Directory of flash:
  3 ...x 80971 current_image.bin
  4 d..x 14144 html
  7 .rwx 84 env_vars
  5 ...x 111 info
  258 ...x 111 info.ver
  230 .rwx 1470 config.text
  3612672 bytes total (1229312 bytes free)
  4, 将当前bin文件重命名为新的bin文件。
  Switch# rename flash:current_image flash:new_image
  Source filename [current_image]?
  Destination filename [new_image]?
  例如:
  升级一台 8 MB 2900XL switch,在switch上的bin文件为
  c2900XL.c3h2.mz.112.8.5.SA6.bin, 你已经从cisco网站上下载了最新IOS文件 :c2900XL.c3h2s.mz.120.5.2.XU.tar
  注重:.tar 结尾替换成 .bin.结尾
  switch# rename flash:c2900XL.c3h2.mz.112.8.5.SA6.bin flash:c2900XL.c3h2s.mz.120.5.2.XU.bin
  Source filename [c2900XL.c3h2.mz.112.8.5.SA6.bin]?
  Destination filename [c2900XL.c3h2s.mz.120.5.2.XU.bin]?
  注重:重命名只是升级的一个步骤,重命名并不是升级。
  5, 检查重命名后的文件。
  Switch# dir flash:
  Directory of flash:
  3 ...x 80971 new_image.bin
  4 d..x 14144 html
  7 .rwx 84 env_vars
  5 ...x 111 info
  258 ...x 111 info.ver
  230 .rwx 1470 config.text
  3612672 bytes total (1229312 bytes free)
  6, 进入全局模式:
  switch# config terminal
  Enter configuration commands, one per line. End with CNTL/Z.
  switch(config)#
  7, Disable web 服务
  switch(config)# no IP http server
  8, 更改boot 机引导文件
  Switch(config)# boot system flash:new_image
  9, 返回 privileged EXEC mode:
  switch(config)# end
  10, 删除HTML文件:
  switch# delete flash:html/*
  11, 假如从11.2(8)SA5 或更早的版本升级, 还要删除SNMP目录及下面的文件
  switch# delete flash:html/Snmp/*
  注重 'S'在 'SNMP'里是大写。
  12, 假如从11.2(8)SA5 或更早的版本升级,要在删除后建立SNMP目录
  switch# mkdir flash:html/Snmp
  13, 使用tar命令进行升级
  Switch#tar /x tftp://server_ip_address//path/filename.tar flash:
  Loading /path/filename.tar from server_ip_address (via VLAN1):!)
  extracting info (111 bytes)
  extracting filename.bin (1557286 bytes)!!!!!!!!!!!!!!!!!!!!
  html/ (directory)
  extracting html/Detective.html.gz (1139 bytes)!
  extracting html/ieGraph.html.gz (553 bytes)
  extracting html/DrawGraph.html.gz (787 bytes)!
  . . .(output Suppressed)
  [OK . 2723840 bytes]
  (This message means that the TFTP process has passed sUCcessfully and both .bin and html files have been extracted successfully)
  14, 进入全局设置模式
  switch# configure terminal
  Enter configuration commands, one per line. End with CNTL/Z.
  15, 重新启动web服务
  switch(config)# IP http server
  16, 返回 privileged EXEC 模式:
  switch(config)# end
  17, Reload 交换机
  switch# reload
  System configuration has been modified. Save? [yes/no]:y
  Proceed with reload? [confirm]
  升级完毕

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