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New Member

2524 Router " NOT Enough Memory "

Dear Group,

I have a 2524 Router and I upgraded its IOS from 11.3 to 12.2(15)T17 version but after that I am facing problem , router reboots automatically and a message which I observe at console is " Not enough memory". The bootstrap version of router is 11.0(10c). Kindly help me to get rid of this new IOS version through rommom mode. The menu in rommon is like this


$ Toggle cache state

B [filename] [TFTP Server IP address | TFTP Server Name]

Load and execute system image from ROM or from TFTP server

C [address] Continue execution [optional address]

D /S M L V Deposit value V of size S into location L with modifier M

E /S M L Examine location L with size S with modifier M

G [address] Begin execution

H Help for commands

I Initialize

K Stack trace

L [filename] [TFTP Server IP address | TFTP Server Name]

Load system image from ROM or from TFTP server, but do not

begin execution

O Show configuration register option settings

P Set the break point

S Single step next instruction

T function Test device (? for help)

Deposit and Examine sizes may be B (byte), L (long) or S (short).

Modifiers may be R (register) or S (byte swap).

Register names are: D0-D7, A0-A6, SS, US, SR, and PC





Re: 2524 Router " NOT Enough Memory "


You will need to go into the boot helper image which is a sub-IOS image.Check out

If probs revert back, if job is done..rate back.:)



New Member

Re: 2524 Router " NOT Enough Memory "

Dear Jaideep,

Thanks for your support. Actually the problem was due to main memory , new IOS was requiring 16 MB so after upgradation of memory problem resolved. The document you refered is also very good document.



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