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在 Cloud-Native 汪洋中載浮載沉的 SRE - Service Restart Engineer

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[隨筆] Cisco 2960X IOS 版本挑選 & 更新

版本挑選

版本號說明請參考友站連結:

大軒軒的筆記本 - Cisco版本號說明12.4和15

官方工具:

更新步驟

1. 設定 Layer 3 介面(int vlan1 也可以),待會要利用 TFTP 來傳輸 Image

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Switch#conf t

Switch(config)#int fastEthernet 0
Switch(config-if)#ip address 192.168.1.33 255.255.255.0
Switch(config-if)#no shutdown
Switch(config-if)#

2. 測通 TFTP Server

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Switch#ping 192.168.1.100
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.100, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/203/1000 ms
Switch#

3. Copy IOS Image 到 flash 上

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Switch#copy tftp flash:
Address or name of remote host []? 192.168.1.100
Source filename []? c2960x-universalk9-mz.152-2.E9.bin
Destination filename [c2960x-universalk9-mz.152-2.E9.bin]?
Accessing tftp://192.168.1.100/c2960x-universalk9-mz.152-2.E9.bin...
Loading c2960x-universalk9-mz.152-2.E9.bin from 192.168.1.100 (via FastEthernet0): !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK - 21141504 bytes]

21141504 bytes copied in 171.882 secs (123000 bytes/sec)
Switch#

4. 檢查檔案

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Switch#show flash:

Directory of flash:/

671 -rwx 1048 Nov 23 2018 02:34:38 +00:00 multiple-fs
2 -rwx 34 Nov 23 2018 02:38:12 +00:00 pnp-tech-time
3 -rwx 11117 Nov 23 2018 02:38:14 +00:00 pnp-tech-discovery-summary
672 -rwx 21141504 Nov 23 2018 02:53:15 +00:00 c2960x-universalk9-mz.152-2.E9.bin
4 drwx 512 Aug 8 2018 17:23:16 +00:00 c2960x-universalk9-mz.152-2.E7
669 drwx 512 Aug 8 2018 17:23:16 +00:00 dc_profile_dir

122185728 bytes total (73718272 bytes free)
Switch#

5. 設定 boot 參數為新的 IOS Image

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Switch#show boot
BOOT path-list : flash:/c2960x-universalk9-mz.152-2.E7/c2960x-universalk9-mz.152-2.E7.bin
Config file : flash:/config.text
Private Config file : flash:/private-config.text
Enable Break : yes
Manual Boot : no
Allow Dev Key : yes
HELPER path-list :
Auto upgrade : yes
Auto upgrade path :
NVRAM/Config file
buffer size: 524288
Timeout for Config
Download: 0 seconds
Config Download
via DHCP: disabled (next boot: disabled)
Switch#

Switch#conf t
Switch(config)#boot system flash:c2960x-universalk9-mz.152-2.E9.bin

Switch(config)#end
Switch#show boot
BOOT path-list : flash:c2960x-universalk9-mz.152-2.E9.bin
Config file : flash:/config.text
Private Config file : flash:/private-config.text
Enable Break : yes
Manual Boot : no
Allow Dev Key : yes
HELPER path-list :
Auto upgrade : yes
Auto upgrade path :
NVRAM/Config file
buffer size: 524288
Timeout for Config
Download: 0 seconds
Config Download
via DHCP: disabled (next boot: disabled)
Switch#

6. 存檔 & reload

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Switch#write 
Building configuration...
[OK]
Switch#reload
Proceed with reload? [confirm]

Nov 23 03:05:08.769: %SYS-5-RELOAD: Reload requested by console. Reload Reason: Reload command.

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