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Cisco Switch No Boot Up

Simon Thomas
Level 1
Level 1

I messed up my Cisco 3560 Switch :(

I downloaded the newest IOS for the switch and removed the old flash files to gain more room.  I started installing the IOS like normal, then stepped away and when I came back I thought it had finished and reloaded the switch.  Now all I get is:

No Boot Flash Found

Switch:

I looked back and it never finished because of no free space.  Well that is when I restarted the switch and I think that since I removed all the Flash, no boot up is possible.

I did the Plug - Press Button, but the Green light just blinks and I have no port 1 light on even though I have tried almost every online suggestion.

Do you experts know of a process that is sure to assist?

Thank you.

2 Accepted Solutions

Accepted Solutions

Mark Malone
VIP Alumni
VIP Alumni

Hey you can put an ios back on by xmodem , put the original back on as you know its right size and working just to get you back up , delete the current one from flash that's not working

see this

https://supportforums.cisco.com/discussion/10319446/how-upload-ios-3560-switch

http://www.cisco.com/c/en/us/support/docs/routers/2600-series-multiservice-platforms/15085-xmodem-generic.html?referring_site=RE&pos=2&page=http://www.cisco.com/c/en/us/support/docs/switches/catalyst-2950-series-switches/41845-192.html

View solution in original post

Hi

use the support forum one for your switch its 3560 too , the xmodem doc was just to explain how its done , but another support member has already given the steps in a row 1 - 6 from where you switch is currently at in Switch: , the 2nd doc for the router is only a guide

see this as well will help

https://www.youtube.com/watch?v=zxTO5qxti-I

View solution in original post

8 Replies 8

Mark Malone
VIP Alumni
VIP Alumni

Hey you can put an ios back on by xmodem , put the original back on as you know its right size and working just to get you back up , delete the current one from flash that's not working

see this

https://supportforums.cisco.com/discussion/10319446/how-upload-ios-3560-switch

http://www.cisco.com/c/en/us/support/docs/routers/2600-series-multiservice-platforms/15085-xmodem-generic.html?referring_site=RE&pos=2&page=http://www.cisco.com/c/en/us/support/docs/switches/catalyst-2950-series-switches/41845-192.html

Mark - Thank you. 

I will give it a go and see what happens as the panic subsides :)

Mark )

The link shows for a router - does it make a difference ?

Also it shows a rommon prompt.  How do I get there from where I am at with the switch:  ?

Thank you.

Hi

use the support forum one for your switch its 3560 too , the xmodem doc was just to explain how its done , but another support member has already given the steps in a row 1 - 6 from where you switch is currently at in Switch: , the 2nd doc for the router is only a guide

see this as well will help

https://www.youtube.com/watch?v=zxTO5qxti-I

Mark )

Thank you for your assistance.  However the link of instructions you sent do not work even following them step for step.

can you be more specific there's no reason why xmodem should not work its the method used to upload an ios to switch or router when there is currently none on it. sometimes its slow process depending on platform but it should work

what step is gone wrong ? did the flash initialize ok ?

theres a video link below may help and heres another link on 3550

https://supportforums.cisco.com/blog/151336/loading-ios-switch-xmodem

switch:  is rommon for a 3560

Mark )

I found the error of our ways.  The PC root FW was on and then the IOS file in the TFTP was an extraction from a higher version for another 3560G Switch.

I am sorry for the confusion.

You did great~!

Thank you.

Ah great glad you got it sorted :)  nothing worse than switch cant get back working there not exactly cheap