Bad: I got a hardware error from my NSLU2 when trying to
reflash it.
I think the recent thunderstorms and flickering power might
have had
something to do with it.
Worse: I messed up RedBoot and can no longer telnet in.
Any advice, either to recover from this or to fix/avoid it
next time?
See below for details...
I successfully flashed my new NSLU2 with Unslung 6.8. A few
days
later, I attempted to flash it with the unofficial
debian-installer
RC1 image.
First I tried to use the web upgrade UI. After about a
minute, I got
a Javascript alert saying something like "Bad image or
filename." I
retried and got the same error.
Then I tried using upslug2, and got this error repeatedly:
> $ sudo upslug2 -i di-nslu2.bin
> LKG7E999B 00:0f:66:7e:99:9b Product ID: 1 Protocol ID:0
Firmware
Version: R23V63 [0x2363]
> Upgrading LKG7E999B 00:0f:66:7e:99:9b
> . original flash contents * packet timed out
> ! being erased - erased
> u being upgraded U upgraded
> v being verified V verified
>
> Display:
> <status> <address completed>+<bytes
transmitted but not completed>
> Status:
> * timeout occured + sequence error
detected
>
> * 0+0005bf
...u--------------------------------------------------------
----
> broadcast: flash programming error
[N12NSLU2Upgrade10FlashErrorE]
> The NSLU2 reported an error reprogramming the flash,
this is
> potentially a serious hardware problem, however it is
probably
> worth while retrying the upgrade to see if the problem
is
> temporary.
Next I telneted into RedBoot and attempted to do a manual
reflash:
> RedBoot> fis write -f 0x50060000 -b 0x01060000 -l
0x7a0000
> * CAUTION * about to program FLASH
> at 0x50060000..0x507fffff from 0x01060000 -
continue
(y/n)? y
> ... Erase from 0x50060000-0x50800000: ...........Err =
a0
>
> Can't erase region at 0x501c0000: Error trying to erase
I used "fis erase" to erase manually. Each time
it errored out at a
higher address, until eventually it succeeded. Then I tried
to "fis
write" again:
> RedBoot> fis write -f 0x50060000 -b 0x01060000 -l
8192
> * CAUTION * about to program FLASH
> at 0x50060000..0x5007ffff from 0x01060000 -
continue
(y/n)? y
> ... Erase from 0x50060000-0x50080000: .
> Err = 90
> Can't program region at 0x50060000: Error trying to
program
I couldn't find any way to make this error go away.
Even worse, when experimenting with "fis write"
later I accidentally
erased the RedBoot partition, and now RedBoot doesn't even
start up.
(This was a stupid mistake, which I won't make again.)
Is there any way to recover from this without JTAG? And for
future
reference, is there anything useful to be about the flash
programming
errors above?
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