Checking Memory before IOS upgrade

[mahesh18]

Hi all,

I need to upgrade IOS on Production Router.

Need to confirm if i have enough space in Flash.

New ios is 87Mb.

Info from router

dir /all

Directory of  flash0:/

1  -rw-    74832340  Jun 21  2012 15:12:44 -06:00  c2900-universalk9-mz.SPA.151-4.M2.bin

2  -rw-        2903   Jun 4  2012 21:54:58 -06:00  cpconfig-29xx.cfg

3  -rw-     3000320   Jun 4  2012 21:55:10 -06:00  cpexpress.tar

4  -rw-        1038   Jun 4  2012 21:55:20 -06:00  home.shtml

5  -rw-      122880   Jun 4  2012 21:55:30 -06:00  home.tar

6  -rw-     1697952   Jun 4  2012 21:55:44 -06:00  securedesktop-ios-3.1.1.45-k9.pkg

7  -rw-      415956   Jun 4  2012 21:55:56 -06:00  sslclient-win-1.1.4.176.pkg

8  -rw-         780  Jun 27  2012 16:54:12 -06:00  vlan.dat

9  -rw-    85336748  Aug 13  2012 09:36:58 -06:00  c2900-universalk9-mz.SPA.152-2.T.bin

256487424 bytes total (91058176  bytes free)

Thanks

Mahesh

[Reza Sharifi]

Hi Mahesh,

You have about 91Mb left on your flash.  So, you have enough space for the new image.  Also, if you are not using the old IOS (like the first image in the list) you should delete them to make more space. 

HTH

Reza

[mahesh18]

Hi Reza,

you are always here to help

one more thing.

Currently i just need to copy ios from tftp to flash.

I do not need to reload the router currently.

So once the new IOS is copied it will not ask for reboot right?

Thanks

mahesh

[singhaam007 · Accepted solution]

Hi Mahesh,

As far, I know you do need to reboot it. However, you can load the new IOS any time and reboot it later (may be after hours).

Even you can reload it remotely.

thanks

[Ivan Shirshin · Accepted solution]

Hi Mahesh,

You are correct - you can copy the image to the flash and leave it running current image.

It won't ask you to reboot or anything and will run new code only after you change the boot string and reload the device.

Kind Regards,
Ivan Shirshin

**Please grade this post if you find it useful.

[Reza Sharifi · Accepted solution]

Hi Mahesh,

Sorry to respond so late. it was time to go to sleep

yes, as others have already mentioned, you can leave the new IOS on the flash and wait until you have an outage window to reboot.  Remember, if you have multiple images change the boot variable to the image you want to boot from, if not the router boots the fist image on the flash.

HTH

Reza

[mahesh18]

Hi Reza & others,

sorry for late reply.

I was able to load new IOS from TFTP to router without rebooting the router.

Best Regards

MAhesh