When I first read your post I thought that the issue was that the IOS requires more memory for the version you were trying than was available on your routers. But I checked and 12.4 code with the IP BASE (including crypto) fits well within your memory of 128/32. Even the Enterprise BASE or Enterprise Services fits within your available memory. So I assume that it must be some other problem. Perhaps if you would post all the messages sent to the console during the boot process we might find what is your issue.
I think what you are seeing is completely normal, and expected during the boot up sequence. I believe this this was introduced in the 12.4 IOS to warn you of unsupported configurations, or software issues. Here is the output of one of my routers running 12.4 and and everything works fine.
smart init is sizing iomem
ID MEMORY_REQ TYPE
00036F 0X00103980 C2651XM Dual Fast Ethernet
0X00098670 public buffer pools
0X00211000 public particle pools
If any of the above Memory Requirements are
"UNKNOWN", you may be using an unsupported
configuration or there is a software problem and
system operation may be compromised.
Rounded IOMEM up to: 3Mb.
Using 2 percent iomem. [3Mb/128Mb]
Also here is a great answer to a post from Rick regarding a similar question.
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
login w/ SSH 1 or 2 to the device compare to IOS device. After
investigation, the there is 1s delay between the client KEXDH_INIT and
the server (XR) KEXDH_REPLY. After debug ssh serv...
Introduction The purpose of this document is to demonstrate the Open
Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is
present in a non-backbone area. The V-bit is signaled in Type-1 LSA only
if the router is the endpoint of one or ...
Hi, I am seeing quite a few issues with patch install and wanted to
share my experience and workaround to this. Login to admin via CLI, then
access root with the “shell” command Issue “df –h” and you’ll probably
see the following directory full or nearly ...