Hi,
We experienced the same problem with SSG5 and our workaround was to reformat the flash FBTL.
CAUTION:
Make sure you're familiar loading software thru TFTP server.
The procedure will erase the bootloader and ScreenOS image so make sure you have a copy of those files in a TFTP server as well as backup of configuration file important file ie certs, license keys.
Procedure:
1. Try to boot the SSG from TFTP server and once booted up and logged-in thru console, execute the following command:
ssg5-serial-> exec vfs fbtlformat 0
2. Load bootloader
Follow the prompt to specify SSG self IP, TFTP server IP, and bootloader filename.
When asked, save to flash? No, run bootloader? Yes.
It will then ask to hit any key to reboot
After reboot it will complain about missing flash
### cannot find boot sector ###
Hit any key to run loader
Hit any key to run loader
Hit any key to run loader
Hit any key to run loader
### invalid on-board internal flash disk ###
3. Load ScreenOS
Follow the prompt to specify SSG self IP, TFTP server IP, and ScreenOS filename.
Follow answers the following prompts:
Save to on-board flash disk? (y/[n]/m) Yes!
Are you sure you want to format on-board flash disk? (y/n) Yes!
Run downloaded system image? ([y]/n) Yes!
It will then start loading the ScreenOS image, initialize FBTL 0, and then load NVRAM information.
Hope this helps.
Resti