FAQ Foneraplus unbricking/it

From Fon Wiki

Jump to: navigation, search

Contents

[edit] Far rivivere la vostra Fonera Plus

by Lama Bleu (19 dec2007)

[edit] Una procedura per riflashare tutte le partizioni della vostra Fonera + e farla ritornare in vita

Ho ricevuto molte richieste , a seguito di una cattiva scrittura in memoria , o tentativi falliti di riflashare la Fonera+ con firmware alternativi ( come DD-WRT o OpenWRT)

Ricordate , non provate mai a riflashare le partizioni native di RedBoot (RedBoot , FIS Directory , RedBoot config ) il rischio di mattonare la Fonera+ è molto alto .

Se lo avete fatto , forse solo l'accesso via porta seriale puo' salvarvi.

Se volete riflashare la vostra Fonera+ (con accesso shell remota) per avere una seconda chance per unirvi a FON , seguite questi semplici passi !

Complimenti a Raymond Hui da Hong-Kong, Reynald F (Francia), David M (Spagna), Negece (Italia), Paule (Germania), Mystique (Francia) e altri che hanno rianimato la Fonera+ seguendo questa procedura.

Come al solito , commenti e feedback sono altamente apprezzati.

[edit] Pre-requisiti

  • Fonera+ con accesso RedBoot e un computer con IP address 192.168.1.254
  • i file immagine loader e image2 (failsafe boot) che contengono le partizioni here
  • Il file immagine del firmware FON , modificato con shell access here
  • I file scaricati vanno decompressi nella directory TFTP del computer server.

[edit] Controllare le partizioni RedBoot

First perform a "fis list" command to check partitions structure. Check name and adresses for loader, image, and image2 partitions Here is a copy of "fis list" of default factory partitions on a new Fonera+ 

Name              FLASH addr  Mem addr    Length      Entry point
RedBoot           0xA8000000  0xA8000000  0x00030000  0x00000000
loader            0xA8030000  0x80100000  0x00010000  0x80100000
image             0xA8040000  0x80040400  0x00230004  0x80040400 
image2            0xA8660000  0xA8660000  0x00140000  0x80040400
FIS directory     0xA87E0000  0xA87E0000  0x0000F000  0x00000000
RedBoot config    0xA87EF000  0xA87EF000  0x00001000  0x00000000


[edit] Check and modify RedBoot init script

Perform a "fconfig -l -n" to display init informations.

Here is a default FON RedBoot init script: 

RedBoot> fconfig -l -n
boot_script: true
boot_script_data:
.. fis load loader
.. go 0x80100000 
boot_script_timeout: 2
bootp: false
bootp_my_gateway_ip: 0.0.0.0
bootp_my_ip: 192.168.1.1
bootp_my_ip_mask: 255.255.255.0 
bootp_server_ip: 192.168.1.254
console_baud_rate: 9600
gdb_port: 9000
info_console_force: false
net_debug: false
RedBoot>

If partition list in step1 and fconfig result in this step2 looks similar to your, try to jump directly to step 5.

If you reflash your Fonera+ with alternative firmware, you probably need to modify boot script.

Use the command "fconfig boot_script_data" to re-type the init script, end with a blank line (example with a previous DD-WRT init script): 

RedBoot> fconfig boot_script_data
boot_script_data: 
.. fis load -l vmlinux.bin.l7
.. exec
Enter script, terminate with empty line
>> fis load loader
>> go 0x80100000
>>
Update RedBoot non-volatile configuration - continue (y/n)? y
... Erase from 0xa87e0000-0xa87f0000: .
... Program from 0x80ff0000-0x81000000 at 0xa87e0000: .
RedBoot>

Take a minute to change delay for RedBoot access at boot, default is 2 seconds, modify this value to 5 ou 10 seconds.

To do this use the command : fconfig boot_script_timeout

Double-check a last time your config ( fconfig -l -n ) before jumping to next step !

[edit] Create FON partitions

First perform a "fis init" to erase all non-RedBoot partitions, then create your three FON-partitions: 

RedBoot prompt truncated here ...
RB> fis init
About to initialize [format] FLASH image system - continue (y/n)? y
*** Initialize FLASH Image System 
... Erase from 0xa87e0000-0xa87f0000: .
... Program from 0x80ff0000-0x81000000 at 0xa87e0000: .
RB> fis create -f 0xa8030000 -l 0x00010000 -e 0x80100000 -r 0x80100000 -n loader
... Erase from 0xa87e0000-0xa87f0000: . 
... Program from 0x80ff0000-0x81000000 at 0xa87e0000: .
RB> fis create -f 0xa8660000 -l 0x00140000 -e 0x80040400 -n image2
... Erase from 0xa87e0000-0xa87f0000: .
... Program from 0x80ff0000-0x81000000 at 0xa87e0000: . 
RB> fis create -f 0xa8040000 -l 0x00230004 -e 0x80040400 -r 0x80040400 -n image
... Erase from 0xa87e0000-0xa87f0000: .
... Program from 0x80ff0000-0x81000000 at 0xa87e0000: .
RB>

[edit] Flash "loader" and "image2" partitions

Load each file by TFTP to your Fonera+, and directly write file loaded to the flash ( RedBoot remembers last load command, we don't need to send memory addresses) :

  • Loader 
load -r -b 0x80100000 loader.bin
fis create loader


  • image2 
load -r -b 0x80100000 image2.bin 
fis create image2


For image2 partition, flashing time is about 10 minutes, be patient !

Optional: at this stage, failsafe mode for your Fonera+ should be working if you try to reboot your Fonera+ (Fonera+ IP address for failsafe mode is 192.168.1.1)

[edit] Flash main partition "image"

This is a 2-in-one command flashing, we are going to flash FON "image" partition ( kernel + squashfs) and JFFS partition at the same time.

So we use "fis write" command instead of classic "fis create" command. Flashing time is 15 minutes. 

load -r -b 0x80100000 image.bin 
fis write -b 0x80100000 -f 0xa8040000 -l 0x00610000


[edit] Reboot and customize

That's it ! Now, you can reboot : RedBoot command is "reset", or just unplug your AC adapter, and power-on your La Fonera+

Cross fingers ...

For customization, check our multilingual guide at http://wiki.fonboard.nl

Good luck !

Retrieved from "http://www.fonboard.nl/w/index.php/FAQ_Foneraplus_unbricking/it"
Personal tools
In other languages