[PATCH] common: fastboot: send FAIL if variable does not exist

[Ahmad Fatoum]

Hello Andrei,

On 7/22/25 17:53, Andrei Lalaev wrote:
> On 22.07.2025 16:07, Ahmad Fatoum wrote:
>> Hello Andrei,
>>
>> On 6/11/25 19:56, Andrei Lalaev wrote:
>>> According to doc [1], new implementations should send FAIL if the
>>> variable specified in the getvar command does not exist.
>>>
>>> [1]: https://android.googlesource.com/platform/system/core/+show/refs/heads/main/fastboot/README.md#121
>>>
>>> Signed-off-by: Andrei Lalaev <andrey.lalaev at gmail.com>
>>
>> Did you run into any particular issues that motivated your change?
> 
> Hi Ahmad,
> 
> Sorry, I should have written a more descriptive commit message
> or at least mentioned the root cause in the footer.
> 
> I was using uuu v1.5.201 with barebox 2025.01 (or 2025.02) to flash
> a raw image to eMMC using the raw2flash flag. Unfortunately,
> due to a bug in uuu, it ended up flashing garbage :/
> I’ve fixed the issue in uuu [1], but during the investigation
> I found out that newer implementation of Fastboot should send FAIL
> if variable is missing, so I also decided to send a patch to barebox.

Ah, I only used SDP/SDPS uuu so far and the dedicated fastboot utility
for fastboot instead.

Good to know that it works with barebox (now). Thanks.

Cheers,
Ahmad

> 
> 1 - https://github.com/nxp-imx/mfgtools/commit/f7351c1cf626764d902576362421f33b79b3a9e9
> 
>>
>> Thanks,
>> Ahmad
>>
> 

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