Reverting to a previous firmware image
Managing firmware versions
FortiGate Version 4.0 Administration Guide
98
01-400-89802-20090424
Reverting to a previous firmware image
You may need to revert to a previous firmware image (or version, for example, FortiOS
3.0) if the upgrade was not successfully installed. The following procedures describe how
to properly downgrade to a previous firmware image using either the web-based manager
or CLI, and include steps on how to restore your previous configuration.
The following are included in this topic:
•
Downgrading to a previous firmware through the web-based manager
•
Downgrading to a previous firmware through the CLI
•
Downgrading to a previous firmware through the web-based manager
When downgrading to a previous firmware, only the following settings are retained:
•
operation mode
•
Interface IP/Management IP
•
route static table
•
DNS settings
•
VDOM parameters/settings
•
admin user account
•
session helpers
•
system accprofiles.
If you created additional settings in FortiOS 4.0, make sure to back up the current
configuration before downgrading. For more information, see
.
To downgrade through the web-based manager
1
Go to
System > Status
and locate the
System Information
widget.
2
Beside
Firmware Version
, select
Update
.
3
Enter the path and filename of the firmware image file, or select
Browse
and locate the
file.
.
4
Select
OK
.
The following message appears:
This version will downgrade the current firmware version. Are
you sure you want to continue?
5
Select
OK
.
The FortiGate unit uploads the firmware image file, reverts to the old firmware version,
resets the configuration, restarts, and displays the FortiGate login. This process takes
a few minutes.
6
Log in to the web-based manager.
Go to
System > Status
to verify that the firmware version under
System Information
has changed to the correct firmware.
Caution:
Always back up your configuration before installing a patch release,
upgrading/downgrading, or when resetting to factory defaults.
Summary of Contents for Gate 60D
Page 705: ...www fortinet com...
Page 706: ...www fortinet com...