I R A Darth Aggie wrote:
> On Mon, 25 Mar 2019 18:53:15 +0100,
> Roby , in
>  wrote:
>>  The Natural Philosopher wrote:
>>> On 25/03/2019 15:14, Roby wrote:
>>>> If my hypothesis were correct (I can only verify the problem when I will
>>>> physically go to the remote site) it would mean for example that the 404
>>>> errors actually occur not because the file does not exist in the
>>>> repository  but because the RPI3 cannot write to the SD card !!! In the
>>>> remote RPI3 I  had inserted a Samsung MB-MP16D Evo and with the command
>>>> def -h I see that  there are still 8 G free!
>>>>
>>>> Can my hypothesis be true ?
>>>
>>> I'd say not.
>>> You are getting tangled up in stuff you dont really undersatnd.
>>>
>>> error 404 is not something the Pi generates because it has run out of
>>> 'disk]  or has something mounted read only (whichg mount would tell you
>>> anyway). It  is something coming back from the remote server.
>>>
>>> Since we know that the remote server is OK, the inference is that it is in
>>> fact somethining between the Pi and the server.
>>>
>>> It cant be basic networking because you can obviously log into the pi.
>>>
>>> It cant be DNS because 404 is not 'I cant find the server; it is the server
>>> saying 'I cant find that file'
>>>>
>>> So we are left with a mal formed request because you have a corrupt
>>> database  or a corrupt proxy, that you still havent checked
>>>
>>> With respect, if you want us to help, follow our damned instructions to the
>>> letter.
>>
>>  I acknowledge that you do not share my hypothesis and that in your
>>  opinion 404 errors cannot be generated due to SD problems ...
>
> You've been told that the 404 is the server saying "I can't find the
> file you specified".  https://en.wikipedia.org/wiki/HTTP_404
>
> Typically, that is due to the package lists apt maintains is
> out-of-date.  A "sudo apt-get update" *should* take care of that. Now,
> if you can't successfully update that because of disk errors, you
> might be on to something.
>
>>  I am available to make other checks .... but I don't know how ...
>>  Can you write me what commands to type to check if there are corrupt
>>  databases or a corrupt proxy?
>>  To avoid problems I ask you to write me the exact syntax of the
>>  commands, so that I can make a copy and paste ...
>
> What does a
>
> sudo apt-get update
>
> produce?

As written in my first post of 03/18, with sudo apt-get update I have
many 404 errors

--
Roby

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