Cisco 3850 Recovery 回復方式
無法開機原因很多，這只是其中的一種，此案是因為韌體更新時，未按照官方的正常程序(導致無法開機，但我依照官方的正常程序也是開不起來，言歸正傳，我還是寫下來，免得日後自己用的到。
ISO版本：cat3k_caa-universalk9.16.06.09.SPA.bin，該版本是免SA帳號的
情境：
原本Switch的版本是 cat3k_caa-universalk9.16.06.09.SPA的版本
原模式Bundel欲轉Install Mode
參考官網提供的手冊後，造成無法開機出現如下圖的畫面，可能是沒從頭到尾的研讀官網文件造成。
發生狀況
模式轉換失敗後可能會出現的訊息，找不到開機檔，會出現下列訊息
Booting...
Interface GE 0 link down***ERROR: PHY link
is down
The "IP_ADDR" environment
variable is not set.
Getting rest of image
Reading full image into
memory...flash:cat3k_caa-base.SPA.03.07.05E.pkg: no such file or directory
loading flash:packages.conf
Reading full image into memory....done
Copying 'cat3k_caa-base.SPA.03.07.05E.pkg'
into the buffer
Failed to open file: no such file or
directory
Getting rest of image
Reading full image into memory...flash:cat3k_caa-base.SPA.03.07.05E.pkg:
no such file or directory
loading flash:packages.conf
Reading full image into memory....done
Copying 'cat3k_caa-base.SPA.03.07.05E.pkg'
into the buffer
Failed to open file: no such file or
directory
The system is unable to boot automatically.
The
BOOT environment variable needs to be set
to a
bootable image.
switch:
解決方式：
1.
找支隨身碟格式化為FAT32
2.
把從官網下載來的bin檔拷進隨身碟裡
3.
在接上交換機器
4.
先在Switch : 下執行，flash_init
5.
Switch: dir usbflash0:
應該會看到以下訊息：
Directory of usbflash0:/
4 -rw- 407542491
cat3k_caa-universalk9.16.06.09.SPA.bin
32080412672
bytes available (407617536 bytes used)
6.
Switch: boot
usbflash0:cat3k_caa-universalk9.16.06.09.SPA.bin #指定從usbflash0載入開機檔
7.
若有開機成功，請先確認從USB 開機的版本是哪個版本?
Switch>en
Switch#sh version
Cisco IOS XE Software, Version 16.06.09
中間略…
Technology Package License
Information:
-----------------------------------------------------------------
Technology-package Technology-package
Current Type Next reboot
------------------------------------------------------------------
ipbasek9 Permanent ipbasek9
Base
Ethernet MAC Address :
00:56:2b:7a:50:00
Motherboard
Assembly Number : 73-16297-04
Motherboard
Serial Number : FOC20233B3C
Model
Revision Number : AA0
Motherboard
Revision Number : B0
Model
Number :
WS-C3850-24T
System
Serial Number : FCW2023D0NF
Switch
Ports Model SW Version SW Image Mode
------ -----
----- ---------- ---------- ----
* 1 32
WS-C3850-24T 16.6.9 CAT3K_CAA-UNIVERSALK9 BUNDLE
Configuration register is 0x102
接下來要做的是Bundle轉換 Install Mode
Switch#request platform
software package clean switch all file flash:
This
operation may take several minutes...
Running
command on switch 1
Cleaning
up unnecessary package files
Scanning
boot directory for packages ... done.
Preparing
packages list to delete ...
done.
The
following files will be deleted:
[switch
1]:
/flash/cat3k_caa-guestshell.16.06.09.SPA.pkg
/flash/cat3k_caa-rpbase.16.06.09.SPA.pkg
/flash/cat3k_caa-rpcore.16.06.09.SPA.pkg
/flash/cat3k_caa-srdriver.16.06.09.SPA.pkg
/flash/cat3k_caa-universalk9.16.06.09.SPA.conf
/flash/cat3k_caa-webui.16.06.09.SPA.pkg
/flash/packages.conf
Do you
want to proceed? [y/n]y
[switch
1]:
Deleting
file flash:cat3k_caa-guestshell.16.06.09.SPA.pkg ... done.
Deleting
file flash:cat3k_caa-rpbase.16.06.09.SPA.pkg ... done.
Deleting
file flash:cat3k_caa-rpcore.16.06.09.SPA.pkg ... done.
Deleting
file flash:cat3k_caa-srdriver.16.06.09.SPA.pkg ... done.
Deleting
file flash:cat3k_caa-universalk9.16.06.09.SPA.conf ... done.
Deleting
file flash:cat3k_caa-webui.16.06.09.SPA.pkg ... done.
Deleting
file flash:packages.conf ... done.
SUCCESS:
Files deleted.
把韌體檔案從隨身碟拷進內建的Flash裡
Switch#copy
usbflash0:cat3k_caa-universalk9.16.06.09.SPA.bin flash:
Destination filename [cat3k_caa-universalk9.16.06.09.SPA.bin]?
直接按下Enter
Copy in
progress...CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
中間略
407542491
bytes copied in 61.886 secs (6585375 bytes/sec)
Switch#dir
flash:
Directory
of flash:/
7746 -rw- 2097152
Feb 11 2022 14:28:12 +00:00
nvram_config
7747 -rw-
407542491 Feb 11 2022 14:36:52
+00:00
cat3k_caa-universalk9.16.06.09.SPA.bin
23233 drwx 4096 Feb 11 2022 14:25:13 +00:00 dc_profile_dir
38722 -rw- 616 Feb 7 2022 10:40:28 +00:00 vlan.dat
38723 -rw- 6170 Jun 7 2017 01:46:18 +00:00 startupconfig
15490 drwx 4096 Feb 11 2022 14:24:56 +00:00 .installer
38725 -rw- 555 Feb 11 2022 14:24:56 +00:00 bootloader_evt_handle.log
15492 drwx 4096 Feb 7 2022 14:00:43 +00:00 core
23235 drwx 4096 Feb 7 2022 13:49:32 +00:00 .prst_sync
38726 drwx 4096 Feb 7 2022 13:49:36 +00:00 .rollback_timer
69697 drwx 4096 Feb 7 2022 13:49:39 +00:00 gs_script
77442 drwx 4096 Feb 7 2022 13:49:39 +00:00 tech_support
38727 -rw-
128103 Feb 11 2022 14:25:34
+00:00 memleak.tcl
15493 drwx 4096 Feb 7 2022 15:00:02 +00:00 .dbpersist
38729 -rw- 0 Feb 7 2022 14:00:22 +00:00 rdope_out.txt
38730 -rw- 90 Feb 7 2022 14:00:34 +00:00 rdope.log
38731 -rw-
2097152 Feb 11 2022 14:28:12
+00:00 nvram_config_bkup
15494 drwx 4096 Feb 7 2022 14:00:40 +00:00 onep
1621966848 bytes total (1121218560 bytes
free)
接著展開檔案
利用Switch all 更新所有在Stack上的交換機
利用 auto-copy 將.bin檔從Flash自動拷貝到在Stack上的其他switch上
Switch#request platform
software package expand switch all file flash: cat3k_caa-universalk9.16.06.09.SPA.bin
auto-copy
[1]:
Expanding file
*Feb 11
14:41:05.225: %IOSXE-5-PLATFORM: Switch 1 R0/0: Feb 11 14:41:05 packtool.sh:
%INSTALL-5-OPERATION_START_INFO: Started expand package
flash:cat3k_caa-universalk9.16.06.09.SPA.bin[1]: Finished expanding all-in-one
software package in switch 1
SUCCESS:
Finished expanding all-in-one software package.
*Feb 11 14:42:09.466: %IOSXE-5-PLATFORM:
Switch 1 R0/0: Feb 11 14:42:09 packtool.sh:
%INSTALL-5-OPERATION_COMPLETED_INFO: Completed expand package flash:cat3k_caa-universalk9.16.06.09.SPA.bin
清除開機參數
Switch#conf t
Switch(config)# no boot system
Switch(config)# boot system flash:packages.conf
Switch(config)# end
Switch#write memory
檢查開機參數值
Switch# show boot
BOOT variable = flash:packages.conf;
Boot Variables on next reload:
BOOT variable = flash:packages.conf;
檢查一下Flash裡有沒有packages.conf
可以把flash:下的packages.conf拷到隨身碟上，在拿到PC上去查看(用notepad可開啟)
重新開機
Switch# reload
確認一下開機版本及模式
Switch# sh version
Cisco IOS XE Software, Version 16.06.09
中間略…
Technology Package License
Information:
-----------------------------------------------------------------
Technology-package Technology-package
Current Type Next reboot
------------------------------------------------------------------
ipbasek9 Permanent ipbasek9
Base
Ethernet MAC Address :
00:56:2b:7a:50:00
Motherboard
Assembly Number : 73-16297-04
Motherboard
Serial Number : FOC20233B3C
Model
Revision Number : AA0
Motherboard
Revision Number : B0
Model
Number :
WS-C3850-24T
System
Serial Number : FCW2023D0NF
Switch
Ports Model SW Version SW Image Mode
------ -----
----- ---------- ---------- ----
* 1 32
WS-C3850-24T 16.6.9 CAT3K_CAA-UNIVERSALK9 Install
Configuration register is 0x102
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