Re: Re: Illegal Instruction Using sudo in Bookworm on i686

[Laszlo Merenyi <merenyil@protonmail.com>]

Message-id: <E1qt2Rj-00000000pNx-329x@drop.zugschlus.de>
In-reply-to: <529D4728-D26F-43FF-A957-54B29652D3A5@neoquasar.org>
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Hello,
I encountered a similar sudo issue with Bookworm installed on a Vortex86DX3 CPU based embedded computer. 
Vortex86 series chips are less known x86 CPUs, that are manufactured and are available on-the-market still today. Their type detection in Linux Kernel was implemented in 2021. They are 32-bit only and they are stated not to be fully i686 compatible CPUs. 
See for example: https://www.icop.com.tw/news/858#! 

I was able to make sudo (and visudo) executable working on this CPU, by recompiling the sudo-1.9.15p5 source code package on the target with manually removed "-fcf_protection" hardening option.

I did not yet met any other program in Bookworm's i386 release having similar "illegal instruction" issue. So, by using a recompiled sudo, Bookworm seems to work on Vortex86DX3.

Regards,
Laszlo