Downgrading FortiSwitchOS 7.0.0 to 6.2.6 and later 6.2 versions is supported. Downgrading FortiSwitchOS 7.0.0 to FortiSwitch 6.4.4 and later 6.4 versions is supported. Downgrading FortiSwitchOS 7.0.0 to versions earlier than 6.2.6 or 6.4.4 is not supported.
Because FortiSwitchOS 7.0.0 changed from SHA1 to SHA256 encryption for admin passwords, you need to convert the format of the admin password before downgrading from FortiSwitchOS 7.0.0 and later to an earlier FortiSwitchOS version.
|If you do not convert the admin password before downgrading from FortiSwitch 7.0.0 and later, the admin password will not work after the switch reboots with the earlier FortiSwitchOS version.|
The encrypted admin password in FortiSwitchOS 7.0.0 and higher starts with “SH2”, and the encrypted admin password for earlier FortiSwitchOS versions starts with “AK1”.
To convert the format of the admin password in FortiSwitch 7.0.0 and later before downgrading to an earlier FortiSwitchOS version:
- Enter the following CLI command to convert the admin password from SHA256 to SHA1 encryption:
execute system admin account-convert <admin_name>
- Downgrade your firmware.
The FSR-112D-POE switch does not support interconnectivity to other FSR-112D-POE switches using the PoE ports. Fortinet recommends using the SFP ports to interconnect switches.