3Com 4210 PWR Configuration Manual page 71

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Erasing the Startup
Configuration File
configuration file in the device even if the device reboots or the power fails
during the process.
CAUTION: The configuration file to be used for next startup may be lost if the
device reboots or the power fails during the configuration file saving process. In
this case, the device reboots without loading any configuration file. After the
device reboots, you need to specify a configuration file for the next startup. Refer
to "Specifying a Configuration File for the Next Startup " on page 70 for details.
Three attributes of the configuration file
Main attribute. When you use the save [ [ safely ] [ main ] ] command to save
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the current configuration, the configuration file you get has main attribute. If
this configuration file already exists and has backup attribute, the file will have
both main and backup attributes after execution of this command. If the
filename you entered is different from that existing in the system, this
command will erase its main attribute to allow only one main attribute
configuration file in the device.
Backup attribute. When you use the save [ safely ] backup command to save
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the current configuration, the configuration file you get has backup attribute. If
this configuration file already exists and has main attribute, the file will have
both main and backup attributes after execution of this command. If the
filename you entered is different from that existing in the system, this
command will erase its backup attribute to allow only one backup attribute
configuration file in the device.
Normal attribute. When you use the save cfgfile command to save the current
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configuration, the configuration file you get has normal attribute if it is not an
existing file. Otherwise, the attribute is dependent on the original attribute of
the file.
It is recommended to adopt the fast saving mode in the conditions of stable
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power and adopt the safe mode in the conditions of unstable power or remote
maintenance.
The extension name of the configuration file must be .cfg.
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You can clear the configuration files saved on the device through commands.
After you clear the configuration files, the device starts up without loading the
configuration file the next time it is started up.
Table 38 Erase the configuration file
Operation
Erase the startup
configuration file from the
storage device
You may need to erase the configuration file for one of these reasons:
After you upgrade software, the old configuration file does not match the new
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software.
The startup configuration file is corrupted or not the one you needed.
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The following two situations exist:
Management of Configuration File
Command
reset saved-configuration [
backup | main ]
69
Description
Required
Available in user view