d-i hangs after "Detecting hardware" and emits E: Unimplemented function

[Karsten Merker <merker@debian.org>]

Control: reassign -1 src:debian-installer

Jonas Smedegaard <dr@jones.dk> wrote:
[d-i on an Allwinner A20-based Olimex LIME2]
> Board boots, asks for locale, and informs that it detects hardware, but
> then (apparently) hangs, and after a little while emits this:
> 
>  E: Unimplemented function

Hello,

several people seem to have had similar effects on different
hardware, so it does not seem to be a problem that is specific to
Allwinner-based systems. According to the following
bugs/threads, possible candidates for the source of the issue
could be the kernel or udev:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=804351#45
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=804351#50

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=803476

https://lists.debian.org/debian-arm/2015/11/msg00021.html

Regards,
Karsten
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