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New Member

2821 IOS Problem

I have cisco 2821. I want to change the IOS for my testing purposes. I have download the IOS but unable to to load the IOS.

I am getting sometimes permission error and sometimes no sufficient place.

it is not giving me the option that delete the old IOS.

R-01#sh flash

-#- --length-- -----date/time------ path

1 38373256 Jun 3 2008 16:17:14 +00:00 c2800nm-advipservicesk9-mz.124-18.bin

25640960 bytes available (38375424 bytes used)

New IOS is 25 MB. Please help me out, Why I am getting permission error and why router is not giving me the option of delete the old IOS when I m loading the new IOS.

Address or name of remote host []?

Source filename []? c2800nm-ipvoice_ivs-mz.124-3g

Destination filename [c2800nm-ipvoice_ivs-mz.124-3g]? c2800nm-ipvoice_ivs-mz.124-3g.bin

Accessing tftp://

%Error opening tftp:// (Permission denied)

Address or name of remote host []?

Source filename [c2800nm-ipvoice_ivs-mz.124-3g]? c2800nm-ipvoice_ivs-mz.124-3g.bin

Destination filename [c2800nm-ipvoice_ivs-mz.124-3g.bin]?

Accessing tftp://

Loading c2800nm-ipvoice_ivs-mz.124-3g.bin from (via GigabitEthernet0/1): !

%Error copying tftp:// (Not enough space on device)

How to solve this problem.

New Member

Re: 2821 IOS Problem


there might be not enough space on ur flash to accomodate new ios. copy new ios to compact flash and change the boot sequence.

hope this will help.

New Member

Re: 2821 IOS Problem

Have you tried #squeeze flash to completely erase deleted files?


New Member

Re: 2821 IOS Problem


there are 2 reasons for this

1) there is not sufficient space for the new IOS(please check the size of flash)

2) may be the corrupts flash

i have done the same yester day for production and it works fine for me

actailly it will ask you for deleting the flash before it uploads from the server, so in that case u can back up the old IOS and delete it then it wll take new ios


PLease find the out may be it will helpfull

please rate me

Router 3#copy tftp flash:

Address or name of remote host []?

Source filename []? c2800-advipservicesk9-mz.123-26.bin

Destination filename [c2800-advipservicesk9-mz.123-26.bin]?

Accessing tftp://

Erase flash: before copying? [confirm]y

Erasing the flash filesystem will remove all files! Continue? [confirm]

Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erasedee

Erase of flash: complete

Loading c2800-advipservicesk9-mz.123-26.bin from (via Ethernet0/0): !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[OK - 20146776 bytes]

Verifying checksum... OK (0xC79C)

20146776 bytes copied in 183.121 secs (110019 bytes/sec)



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