"Cannot add System Storage Internal"?

[rgreene]

We're redeploying a bunch of 80CM's and on several of the units with 512MB RAM, I'm seeing the message "Cannot add System Storage Internal" on boot.  The unit I have in front of me with 1GB RAM does not display that message.  We're running Version: FortiWiFi-80CM v5.2.0,build0589,140613 (GA) on all of them at the customer's request.  I've Googled and cannot find a pointer to the issue.

Since I've not done exhaustive testing, I don't know if this occurs with every 512MB unit or that I've only recently started paying attention.  Is there a document explaining what it means?  On the 512MB units, "config system storage" is not supported.  It works fine on the 1GB unit.

Edit:  For the next guy...

I got an answer from our SE.  He said that it's a flag to let you know that you cannot enable logging to flash, so nothing to worry about.  You wouldn't want to anyway.

http://docs.fortinet.com/...-notes.pdf   (Page 18) Disk logging and memory logging changes On some FortiGate models, flash-based logging is not available in FortiOS v5.2.0. For these platforms, Fortinet recommends the free FortiCloud central logging & reporting service, as it offers higher capacity and extends the features available to the FortiGate. These models include: FG-100D (P09340-04 or earlier) FG-20C FG-20C_ADSL_A FG-200B/200B_POE (Without FSM) FG-300C_Gen1 (P09616-04 or earlier) FG-40C FG-60C FG-60C-POE FG-60C-SFP FG-70D FG-60D FG-80C/80CM (P05403-05, P05446-05) FW-20C FW-40C FW-20C_ADSL_A FW-60CX_A FW-60C FW-60CM (P08962-04 or later) FW-60CX_ADSL-A FW-60D FW-60D-POE