Cisco IOS upgrade

Hi Guys,
I just used the following instructions to upgrade the IOS on a Cisco 3750 swtich.
http://www.thegeekstuff.com/2011/06/upgrade-cisco-ios-image/

And when I ran reload, the switch began to make a very loud noise,
And the console shows a series of letters particularly these

spssssssssssspssssss

And it's been like that for like 5 minutes.
Is this normal?
cargexAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

cargexAuthor Commented:
Front-end Microcode IMG MGR: Preparing to program device[0]....

And is back to

sssssssspsssssspssssssss


Can anyone please help me!!!!
0
Wayne88Commented:
Seems like you put the wrong image on the switch

"With new IOS version you will see microcode getting updated which will take 30-45 minutes when switch booted first time but switch will take normal time to boot afterwards. Actually, The switches have a small MCU(MicroController Unit) to offload processing of some of the hardware interfaces like POE , Fan, power supply etc. (the actual details vary by SKU).Programming front end

microcode should only happen once when upgrading to a higher version with newer microcode.

So Lets wait once switch booted with wrong IOS, then change the IOS image."
0
cargexAuthor Commented:
The IOS isn't wrong, because it is the same version that is running in other 3 switches that are currently in production environment, but I didn't upgrade those, they were like that from before they were my responsibility.

But thinking about what your are saying the upgrade was from IOS 12 to IOS 15, so I think that's why the microcode was updated, and now all the noise and the 30 minutes it took makes sense.

At the present time, the switch finished with the upgrade and now seems to be running normally.

Switch>show switch
Switch/Stack Mac Address : d8b1.9054.c080
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
*1       Master d8b1.9054.c080     1      3       Ready



Switch#show ver
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 15.0(2)SE8,
RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2015 by Cisco Systems, Inc.
Compiled Wed 13-May-15 22:53 by prod_rel_team

ROM: Bootstrap program is C3750E boot loader
BOOTLDR: C3750E Boot Loader (C3750X-HBOOT-M) Version 15.2(3r)E, RELEASE SOFTWARE
 (fc1)

Switch uptime is 8 minutes
System returned to ROM by power-on
System image file is "flash:c3750e-universalk9-mz.150-2.SE8.bin"

Do you agree with my assessment of the current situation?
0
Ultimate Tool Kit for Technology Solution Provider

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy now.

cargexAuthor Commented:
Wayne88, can you please confirm or refute my conclusion?
I would like to close this question today.
Thanks.
0
pgolding00Commented:
yes, it looks fine to proceed. its running version 15.0 and has been up and working for 8 minutes.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
cargexAuthor Commented:
Thanks guys.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Networking Hardware-Other

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.