上 思科路由器系列软件安装与升级步骤( 三 )



Erasing the flash filesystem will remove all files! Continue? [confirm]y
Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
eeeeeeeeee ...erased
Erase of flash: complete
Loading c2600-i-mz.121-14.bin from 10.10.10.2 (via Ethernet0/0): !!!!!!!!
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[OK - 4501480/9001984 bytes]
Verifying checksum... OK (0xAC8A)
4501480 bytes copied in 56.88 secs (80383 bytes/sec)
复制过程将需要数分钟时间,时间长短因网络的不同而有所差异 。在复制过程中,将显示信息提示已经 接入的文件 。
感叹号“!”表示正在处理复制流程 。每一个感叹号表示已经成功传输了十个数据包 。镜像的校验和鉴别将在镜像写入闪存后执行 。
有关软件传输问题的故障检修,可在“ 使用TFTP服务器或者RCP服务器安装镜像的常见问题”中找到 。
当您对闪存升级之后,您需要使用 reload 命令重新加载路由器 。
在您重新加载路由器之前,您需要检查两项内容:
config - register值——您可以使用 show version 命令进行检查 。在 show version 输出结果的最后一行中显示该值 。该值应设定为0x2102 。
2610#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
2610(config)#config-register 0x2102
2610(config)#^Z
闪存中的其它文件——假如闪存中的首个文件并非Cisco IOS软件镜像,而是配置文件或者其它文件,您则需要配置 boot system 告示以启动规定的镜像 。否则,路由器将试图以闪存中的配置文件或者第一个文件进行启动,这样将无效 。假如闪存中仅有一个文件,即Cisco IOS软件镜像,则无需该步骤 。
2610#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
2610(config)#no boot system
2610(config)#boot system flash c2600-i-mz.121-14.bin
2610(config)#^Z
注重: 当您键入 reload 命令,路由器会询问您是否想要保存配置 。您此时应非常谨慎 。理由是:假如路由器处于boot模式(举例来说),它是所运行的完整Cisco IOS软件的一个子集,没有路由功能 。因此,在运行中的配置中,所有路由配置全部消失,假如您在此时保存配置,您将删除NVRAM中完好的启动配置,并替之以不完全的运行配置 。只有当您确定在show run的输出结果中具有完整配置时才保存该配置 。假如配置先前已经被改变,则无需考虑新的config - register而保存配置 。该操作将自动完成 。
2610#reload
System configuration has been modified. Save? [yes/no]: y
Building configuration...
[OK]
Proceed with reload? [confirm]y
请检验路由器是否以正确的镜像运行 。
在重新加载完毕之后,路由器应以所需Cisco IOS软件镜像运行 。请使用 show version 命令进行检验 。
2610#show version
00:22:25: %SYS-5-CONFIG_I: Configured from console by console

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