Re: Illegal Instruction Using sudo in Bookworm on i686

[Sven Mueller]

https://www.compmall.de/VDX3-EITX-75S-505669 is in stock.

I found a variety of other shops selling similar boards, some having them in stock, some not.

Am 08.06.2024 13:29 schrieb rhys <r...@neoquasar.org>:

Yes, this is a known issue.  This is because Bookworm only supports 32-bit CPUs that are fully Intel compatible.  You will find that there are other binaries such as ffmpeg that fail with the same problem.  (This is from memory.  I have a similar system that is "almost" Intel compatible, but cannot run Bookworm due to these issues.)

The fact that these processors are still sold today is interesting, though.  A big part of the argument for limiting 32-bit support has to do with the assumption that they are all "very old" systems.  So a NEW 32-bit processor might change that discussion.

This is perhaps a better link for that, though, since it shows a product based on that CPU, rather than just a discussion about it:

https://icop.com.tw/product/VDX3-PITX#!

(Note:  The site uses a self-signed certificate.  Bleh.)

It doesn't list a price or availability, though, which suggests that it may NOT actually be sold any more. 

Do you have an example of a site where these are available for purchase as new (not used or refurbished)?

--J

> On Jun 8, 2024, at 02:25, Laszlo Merenyi <meren...@protonmail.com> wrote:
>
> Message-id: <e1qt2rj-00000000pnx-3...@drop.zugschlus.de>
> In-reply-to: <529d4728-d26f-43ff-a957-54b29652d...@neoquasar.org>
> References: <529d4728-d26f-43ff-a957-54b29652d...@neoquasar.org>
>
> 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
>
>
>