Description
This article describes the issue when the FortiGate unit repeatedly reboots. When viewing the status through the console, the following output appears:
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Reading boot image 1762264 bytes.
Initializing firewall...crc errorINITTAR: falling back to normal initrd...
crc errorFAT: bogus logical sector size 0
Kernel panic: VFS: Unable to mount root fs on 01:00
FGT60B (15:29-09.06.2007)
Ver:04000006
Serial number:FGT60B3908635487
RAM activation
Total RAM: 256MB
Enabling cache...Done.
Scanning PCI bus...Done.
Allocating PCI resources...Done.
Enabling PCI resources...Done.
Zeroing IRQ settings...Done.
Verifying PIRQ tables...Done.
Boot up, boot device capacity: 64MB.
Press any key to display configuration menu...
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Scope
FortiGate, Firmware, TFTP, Flash Format, Flash memory, Corruption, RMA, Recovery.
Solution
This message means that there is an issue with flash memory. Most probably, there is a bad block and the system tried to access it.
To recover from this issue is to format the boot device (flash memory) and reload the same firmware version as before, and then restore configuration from a backup file or reconfigure the unit from scratch manually if not having the updated configuration backup.
Follow the following article for the complete TFTP reload procedure: Technical Tip: Formatting and loading FortiGate firmware image using TFTP.
If the issue persists, contact Customer Support.
