Nexus5548UP系統升級

用戶的兩臺nexus5548已經使用不少年了，系統版本是5.2.1，一些高級功能在5.2.1中不被支持。因業務須要，須要對這兩臺5548進行升級，查看文檔，得知要將當前版本升級到7.3.5不能一步到位。

爲了保證升級的穩定，我制定的升級步驟是先升到6.0.2.N2.7，而後再升級到7.1.4.N1.1，最後再升級到7.3.5。

準備工做：

一、準備相應版本的NX-OS

二、在本機搭建一臺FTP服務器。

下面升級立刻開始：

升級前作好配置文件的備份，事實證實，這樣作是對的！

一、經過命令將系統文件上傳到N5548中，命令以下：

5548_A# copy ftp://10.96.1.240/n5000-uk9-kickstart.6.0.2.N2.7.bin bootflash:

5548_A# copy ftp://10.96.1.240/n5000-uk9.6.0.2.N2.7.bin bootflash:

在這裏我沒有一次性將全部的文件都上傳上去，由於空間不夠，因此升一個版本上傳一個版本。

二、安裝升級

用戶的環境中是兩臺5548作的HSRP，在這裏我先升級的Active
5548_A# install all kickstart bootflash:n5000-uk9-kickstart.6.0.2.N2.7.bin system bootflash:n5000-uk9.6.0.2.N2.7.bin

Verifying image bootflash:/n5000-uk9-kickstart.6.0.2.N2.7.bin for boot variable "kickstart".
[####################] 100% -- SUCCESS

Verifying image bootflash:/n5000-uk9.6.0.2.N2.7.bin for boot variable "system".
[####################] 100% -- SUCCESS

Verifying image type.
[####################] 100% -- SUCCESS

Extracting "system" version from image bootflash:/n5000-uk9.6.0.2.N2.7.bin.
[####################] 100% -- SUCCESS

Extracting "kickstart" version from image bootflash:/n5000-uk9-kickstart.6.0.2.N2.7.bin.
[####################] 100% -- SUCCESS

Extracting "bios" version from image bootflash:/n5000-uk9.6.0.2.N2.7.bin.
[####################] 100% -- SUCCESS

Performing module support checks.
[####################] 100% -- SUCCESS

Notifying services about system upgrade.
[####################] 100% -- SUCCESS



Compatibility check is done:
Module  bootable          Impact  Install-type  Reason
------  --------  --------------  ------------  ------
     1       yes      disruptive         reset  Non-disruptive install not supported if L3 was enabled



Images will be upgraded according to following table:
Module       Image         Running-Version             New-Version  Upg-Required
------  ----------  ----------------------  ----------------------  ------------
     1      system             5.2(1)N1(4)             6.0(2)N2(7)                   yes
     1   kickstart             5.2(1)N1(4)             6.0(2)N2(7)                    yes
     1        bios      v3.6.0(05/09/2012)      v3.6.0(05/09/2012)            no
     1      SFP-uC                v1.0.0.0                v1.0.0.0                         no
     1   power-seq                    v1.0                    v3.0                         yes
     3   power-seq                    v5.0                    v5.0                         no
     1          uC                     v1.2.0.1                v1.2.0.1                       no


Switch will be reloaded for disruptive upgrade.
Do you want to continue with the installation (y/n)?  [n] y

Install is in progress, please wait.

Performing runtime checks.
[####################] 100% -- SUCCESS

Setting boot variables.
[####################] 100% -- SUCCESS

Performing configuration copy.
[####################] 100% -- SUCCESS

Module 1: Refreshing compact flash and upgrading bios/loader/bootrom/power-seq.
Warning: please do not remove or power off the module at this time.
Note: Power-seq upgrade needs a power-cycle to take into effect.
Use command 'reload power-cycle'
Note: Micro-controller upgrade needs a power-cycle to take into effect.
On success of micro-controller upgrade, SWITCH OFF THE POWER to the system and then, power it up.
[####################] 100% -- SUCCESS

Finishing the upgrade, switch will reboot in 10 seconds.

待系統重啓後升級完成。按照一樣的方法對standby進行升級。6.0.2.N2升級完成以後，系統沒有問題，各應用也正常。

下面接着升級。

在這裏我只截取部份內容：

Images will be upgraded according to following table:
Module             Image         Running-Version             New-Version  Upg-Required
------  ----------------  ----------------------  ----------------------  ------------
     1            system             6.0(2)N2(7)             7.1(4)N1(1)           yes
     1         kickstart             6.0(2)N2(7)             7.1(4)N1(1)           yes
     1              bios      v3.6.0(05/09/2012)      v3.6.0(05/09/2012)            no
     1         power-seq                    v3.0                    v3.0            no
     1            SFP-uC                v1.0.0.0                v1.0.0.0            no
     3         power-seq                    v5.0                    v5.0            no
     1   microcontroller                v1.2.0.1                v1.2.0.1            no

不知道爲何，在我升級到7.1.4的時候出了點情況，配置文件中關於FC的部分配置丟失了！！還好事前備份了配置文件，迅速修改配置後，系統恢復。

Images will be upgraded according to following table:
Module             Image         Running-Version             New-Version  Upg-Required
------  ----------------  ----------------------  ----------------------  ------------
     1            system             7.1(4)N1(1)             7.3(5)N1(1)           yes
     1         kickstart             7.1(4)N1(1)             7.3(5)N1(1)           yes
     1              bios      v3.6.0(05/09/2012)      v3.6.0(05/09/2012)            no
     1         power-seq                    v3.0                    v3.0            no
     1            SFP-uC                v1.0.0.0                v1.0.0.0            no
     3         power-seq                    v5.0                    v5.0            no
     1   microcontroller                v1.2.0.1                v1.2.0.1            no

最後從7.1升級到7.3，升級完成後配置文件沒有丟失，系統正常！整個升級過程雖然出了點小插曲，不過還算正常。