Description In some scenarios FortiExtender get stuck in continuous boot loop every 60- 120 seconds due to image corruption.
This article describes how to recover the Fortiextender stuck in boot loop by upgrading the firmware by interrupting boot sequence from the console.
Solution 1) Plug in the console cable to the FortiExtender and access it using baud rate of 115200. 2) Download the latest/required image for the FortiExtender in local PC and set the image name as fxtimage.out. 3) Setup a TFTP server in a local PC with server IP as 192.168.0.10. 4) Interrupt the boot sequence of the FortiExtender and configure the required TFTP parameters. 5) Connect the TFTP server to Ethernet port of the FortiExtender and the upgrade will start.
Upgrade via boot sequence:
[BLDR] jump to 0x41E00000 Recognize SNAND: ID [c8 d4 ], Device Name [GD5F4GQ4UBYIG], Page Size [4096]B Spare Size [256]B Total Size [512]MB 16384 bytes read: OK FortiExtender-201E (00:58:20-Jun 04 2019) Ver:00020003 Serial number: FX201E5919003554 CPU: 1.35GHz Total RAM: 496 MiB Initializing boot device... Net: mtk_eth Uip activated Please wait for OS to boot, or press any key to display configuration menu.
[C]: Configure TFTP parameters. [R]: Review TFTP parameters. [T]: Initiate TFTP firmware transfer. [F]: Format boot device. [I]: System information. [B]: Boot with backup firmware and set as default. [Q]: Quit menu and continue to boot. [H]: Display this list of options.
Enter C,R,T,F,I,B,Q,or H: [C]
[D]: Set DHCP mode. [I]: Set local IP address. [S]: Set local subnet mask. [G]: Set local gateway. [V]: Set local VLAN ID. [T]: Set remote TFTP server IP address. [F]: Set firmware file name. [E]: Reset TFTP parameters to factory defaults. [R]: Review TFTP parameters. [N]: Diagnose networking(ping). [Q]: Quit this menu. [H]: Display this list of options.
Enter D,I,S,G,V,T,F,E,R,N,Q,or H: [T] Enter remote TFTP server IP address [192.168.0.10]:
(Set all the tftp parameters by using options D,I,S,G,V,T,F,E. After configuring the options, come back to main menu and review the config by [R})
Enter C,R,T,F,I,B,Q,or H: R
Image download port: WAN2 DHCP status: Disabled Local VLAN ID: <NULL> Local IP address: 192.168.0.1 Local subnet mask: 255.255.255.0 Local gateway: <NULL> TFTP server IP address: 192.168.0.10 Firmware file name: fxtimage.out
Please connect TFTP server to Ethernet port
ETH already turn on and power on flow will be skipped... Waiting for RX_DMA_BUSY status Start... done Using mtk_eth device TFTP from server 192.168.0.10; our IP address is 192.168.0.1 Filename 'fxtimage.out'. Load address: 0x57ffffd8 Loading: *T ############################################################## 3.5 MiB/s done Bytes transferred = 29799223 (1c6b337 hex) get filesize 0x1c6b337 Checking image... OK Uncompressed size: 29884932 = 0x1C80204 Save as Default firmware/Backup firmware:[D/B]?D Programming the boot device now. NAND erase: device 0 offset 0x200000, size 0x40000 Erasing at 0x200000 -- 100% complete. OK Erasing at 0x240000 -- 0% complete. Erasing at 0x2c0000 -- 1% complete. Erasing at 0x340000 -- 2% complete. [Cutting output short] Erasing at 0x3880000 -- 99% complete. Erasing at 0x3900000 -- 100% complete.
FX201E5919-----4 login: admin Password: FX201E5919-----4 # get system version System version: image version : FXT201E-v4.1-build191 image type : GA model : FortiExtender-201E MAC : 04:d5:90:57:64:12 SN : FX201E59190
