I have a 24port 2950 Switch
every time I boot it I get
2950 Boot Loader (C2950-HBOOT-M) Version 12.1(11r)EA1, RELEASE SOFTWARE (fc1)
Compiled Mon 22-Jul-02 17:18 by antonino
WS-C2950-24 starting...
Invalid parameter block -- no mac address available.
Xmodem file system is available.
This extract is from the boot process, prior to the flash: file system initialising.
Once the switch has booted, and issue a show ver, the end says;
Invalid parameter block -- no serial number or mac address available.
Configuration register is 0xF
So far, to cure this I have tried:
Edit of the env_vars file
copy of env_vars from an identical 2950 with same ios
format of flash:
reload at that point so there is nothing, reload an IOS over xmodem (fun) and then start from scratch only to get the same error.
Any ideas on this ?
