i was upgrading a 1751 last night in my voicelab and when i reloaded the router after the new IOS was loaded into flash it boots to rommon>. i used the xmodem commands to load a different image and i removed an fxs card installed just before the upgrade. i changed the confreg back to 0x2102 and the baud rate back to 9600. i can see the image in flash with the dir flash: command.
i am stumped - i think i pressed yes when the router said " sys config has changed do you want to save" just before the first upgrade.
i almost forgot the error message during boot after the image decompresses
- *** Machine Check Exception ***
PC = 0x81432ebc, Vector = 0x200, SP = 0x800063dc
monitor: command "boot" aborted due to exception?
System Bootstrap, Version 12.2(1r)XE1, RELEASE SOFTWARE (fc1)
any information would be great.
thanks in advance.
Basic IOS requires less memory. Voice features are memory intensive. If you plan on labbing with Voice stuff, purchase more memory.
I checked all available IOS images, even older ones and they all need 64MB DRAM for Voice support.