Command Line Interface Reference Guide > The Boot Options Menu > /boot/conf Selecting a Configuration Block
/boot/conf
Selecting a Configuration Block
When you make configuration changes, you must save the changes so that they are retained the next time Alteon is reset. When you run save at any time, your new configuration changes are placed in the active configuration block. The previous configuration is copied into the backup configuration block.
There is also a factory configuration block. This holds the default configuration set by the factory when your Alteon was manufactured. Under certain circumstances, you may want to reset Alteon configuration to the factory settings. This can be useful when a custom-configured Alteon is moved to a network environment where it will be re-configured for a different purpose.
To set which configuration block you want Alteon to load the next time it is reset 
1. If you have not done so already, enter conf at the prompt:
 
Boot Options# conf
2. Enter the name of the configuration block you want Alteon to use
A message displays indicating which configuration block is currently set to be loaded at the next reset, and prompts you to enter a new choice:
 
Currently set to use active configuration block on next reset.
Specify new block to use ["active"/"backup"/"factory"]:
3. If you select factory settings, you are prompted to keep management port connectivity:
 
Next boot will use factory default config block instead of active.
Confirm : Do you want to keep management port connectivity? [y/n]: y
Note: If you select factory default configuration, you will be required to set a new administrator password before the reboot.
4. You are prompted to keep SSH keys:
 
Confirm : Do you want to keep SSH keys? [y/n]: n
deleting SSH keys from FLASH
SSH keys deleted