Re: [ts-7000] Corrupted flas recovery

[Petr Štetiar <>]

Daniel Smolik <> [2009-10-25 17:39:11]:

> Hi all, I have problem with recovering completely  erased flash on TS-7200.
> I by mistake erased whole flash on TS-7200 with flash_eraseall. I have boot
> to TS-9420 and see /dev/mtd1 - /dev/mtd6. I flashcp /dev/mtd3 tsbootrom.bin.
> After this board start booting on serial console is displayed  information
> about TS-BOOTROM but after this "Could not find CRUS signature" is
> displayed. It's much better than on start. After this I try flash redboot
> with flashcp. But I get "no such device". In /proc/mtd I see /dev/mtd4 and
> mtd5  but I can't use it. Have anybody experience with TS-9420 ?

My notes for ts-7250, hope it helps:

Restore redboot
---------------

1) load redboot to RAM 
        JP1 on
        JP2 off 
        JP3 on
        #./serial_blaster

        serialblaster will finish with this error:

        waiting for ']' 
        found ']' 
        ReadByte ERROR, no input after 60 seconds

        don't reset board!, continue with 2)

2) enable serial console
        JP1 on
        JP2 on <- enables serial console
        JP3 on  
        run minicom or whatever
        there should be a 'RedBoot>' prompt

3) load RedBoot to RAM 
        RedBoot> fis list
        Name              FLASH addr  Mem addr    Length      Entry point
        (reserved)        0x60000000  0x60000000  0x01D04000  0x00000000
        RedBoot           0x61D04000  0x61D04000  0x00040000  0x00000000
        FIS directory     0x61FFC000  0x61FFC000  0x00003000  0x00000000
        RedBoot config    0x61FFF000  0x61FFF000  0x00001000  0x00000000

        RedBoot> load -v -r -b 0x00218000 -m http -h 192.168.2.227 
/~ynezz/redboot-7250-32mb-10-26-2005.bin
        Raw file loaded 0x00218000-0x00513fff, assumed entry at 0x00218000

        count size:
        :~/public_html$ python -c "print(hex(0x002180000-0x00513fff))"
        0x1c6c001
     
        RedBoot> fis write -f 0x61D04000 -b 0x00218000 -l 0x1c6c001


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