IOS upgradation WS-C3750G-48TS-S

[lerner cisco]

All,

I am planning to upgrade IOS at  WS-C3750G-48TS-S   ,I copied IOS  checked the md5 all looking good , however  when I check  " show boot " I am getting below logs for the existing IOS  , to load new IOS  that is c3750-ipservicesk9-mz.122-58.SE2.bin    I am plan to issue below command , please suggest it works or not  or creates some issue

   no boot system

   boot system flash:c3750-ipservicesk9-mz.122-58.SE2.bin

  Existing booth system  showing like  " flash:flash:/c3750-ipservicesk9-mz.122-37.SE.bin  "

switch#sh boot
BOOT path-list   : flash:flash:/c3750-ipservicesk9-mz.122-37.SE.bin

switch#sh ver
Cisco IOS Software, C3750 Software (C3750-IPSERVICESK9-M), Version 12.2(37)SE, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-2007 by Cisco Systems, Inc.

ROM: Bootstrap program is C3750 boot loader
BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.2(25r)SEE4, RELEASE SOFTWARE (fc1)

System image file is "flash:/c3750-ipservicesk9-mz.122-37.SE.bin"

[Reza Sharifi]

On the 3750s you can only have one boot statement.

so add

boot system flash:c3750-ipservicesk9-mz.122-58.SE2.bin

save and reboot.  It should boot and load the new image.  Make sure you have a copy of the old image saved somewhere.

HTH

[lerner cisco]

thank you

the old image still at  same flash , I am wondering  why existing switch showing "sh boot " weird

switch#sh boot
BOOT path-list   : flash:flash:/c3750-ipservicesk9-mz.122-37.SE.bin

[Reza Sharifi · Accepted solution]

It may not change until you reboot:

do a:

no boot system flash:c3750-ipservicesk9-mz.122-37.SE.bin

and then

boot system flash:c3750-ipservicesk9-mz.122-58.SE2.bin

save and reboot.

HTH