Cisco AP 胖瘦互转
近期升级2台AP 1602i 1142N 全部使用电源模块供电，对其进行胖Ap转瘦AP，但操作中发现按MODE模式或者正常配置ip进去全部无法连接到TFTP服务器，经多次尝试，只需现用的flash版本删掉，即可重新TFTP获取新的IOS，具体步骤如下：ap#dir
Directory of flash:/
2-rwx 321726Apr 25 2002 02:53:27 +00:00crashinfo_20020425-025324
3-rwx 1048Apr 25 2002 04:41:14 +00:00private-multiple-fs
4-rwx 347860Apr 25 2002 02:52:14 +00:00crashinfo_20020425-025211
6-rwx 220 Mar 1 2002 00:00:06 +00:00env_vars
7drwx 256 Mar 1 2002 00:11:00 +00:00c1140-k9w7-mx.124-21a.JA1
155-rwx 332858Apr 25 2002 02:54:31 +00:00crashinfo_20020425-025427
156-rwx 339520Apr 25 2002 02:55:51 +00:00crashinfo_20020425-025548
157-rwx 333434Apr 25 2002 02:57:02 +00:00crashinfo_20020425-025659
158-rwx 323027Apr 25 2002 03:02:28 +00:00crashinfo_20020425-030225
159-rwx 352748Apr 25 2002 04:00:12 +00:00crashinfo_20020425-040009
160-rwx 354734Apr 25 2002 04:26:02 +00:00crashinfo_20020425-042559
162-rwx 5Apr 25 2002 04:37:49 +00:00private-config
32385024 bytes total (24130560 bytes free)
查看先用IOS版本
ap#sh version
Cisco IOS Software, C1140 Software (C1140-K9W7-M), Version 12.4(21a)JA1,> Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Wed 16-Sep-09 18:09 by prod_rel_team
ROM: Bootstrap program is C1140 boot loader
BOOTLDR: C1140 Boot Loader (C1140-BOOT-M) Version 12.4(23c)JA3,> ap uptime is 7 minutes
System returned to ROM by watchdog timer expired
System image file is "flash:/c1140-k9w7-mx.124-21a.JA1/c1140-k9w7-mx.124-21a.JA1"
删除先用版本IOS
/recursive 删除指定文件夹下的所有文件和子文件夹
/force 删除而不给出提示
ap#delete /recursive /force flash:/c1140-k9w7-mx.124-21a.JA1
ap#dir
Directory of flash:/
2-rwx 321726Apr 25 2002 02:53:27 +00:00crashinfo_20020425-025324
3-rwx 1048Apr 25 2002 04:41:14 +00:00private-multiple-fs
4-rwx 347860Apr 25 2002 02:52:14 +00:00crashinfo_20020425-025211
6-rwx 220 Mar 1 2002 00:00:06 +00:00env_vars
155-rwx 332858Apr 25 2002 02:54:31 +00:00crashinfo_20020425-025427
156-rwx 339520Apr 25 2002 02:55:51 +00:00crashinfo_20020425-025548
157-rwx 333434Apr 25 2002 02:57:02 +00:00crashinfo_20020425-025659
158-rwx 323027Apr 25 2002 03:02:28 +00:00crashinfo_20020425-030225
159-rwx 352748Apr 25 2002 04:00:12 +00:00crashinfo_20020425-040009
160-rwx 354734Apr 25 2002 04:26:02 +00:00crashinfo_20020425-042559
162-rwx 5Apr 25 2002 04:37:49 +00:00private-config
32385024 bytes total (29672960 bytes free)
已经删除掉了，现在可以进入MODE模式下升级
首先把电脑ip地址设置成10.0.0.2 255.0.0.0把固件名称改成下面提示的版本（断电后按住MODE键加电，看到提示下面，灯一直亮红色放手，如果更改完c1140-k9w7-tar.default，设备会自动进行升级，这里tftp32搭建略过）
button is pressed, wait for button to be> button pressed for 27 seconds
process_config_recovery: set IP address and config to default 10.0.0.1
process_config_recovery: image recovery
image_recovery: Download default IOS tar image tftp://255.255.255.255/c1140-k9w7-tar.default
image_recovery: Download default IOS tar image tftp://255.255.255.255/c1140-k9w7-tar.default
examining image...
extracting info (283 bytes)
Image info:
Version Suffix: k9w8-.153-3.JD
Image Name: c1140-k9w8-mx.153-3.JD
Version Directory: c1140-k9w8-mx.153-3.JD
Ios Image>
Total Image> Image Feature: WIRELESS LAN|LWAPP
Image Family: C1140
Wireless Switch Management Version: 8.3.102.0
Extracting files...
如果瘦AP也可以按最后一部操作，基本相同。
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