Is not that bad to reboot so much to try all the ports who are working in general?

So I got my pendrive working on older PC (Athlon II X2 and so).
So issue is not in pendrive. My motherboard is not supported by Slackware?
I have Gigabyte GA-970A-
DS3P FX.

They have usually a bios sub-menu for usb, where you can set "usb legacy" and "usb storage"
For booting usb-2.0 hardware on those new boards, you must enable both of these settings.

I would rather say this: your motherboard is not supported by the Linux kernel?

Because the hardware support on Slackware is the one given by the Linux kernel as is.

Could happen that a particular Linux kernel to have some issues with your particular motherboard.

So, what you put in pendrive? A -current release of LiveSlak? Then you have got a 6.1.x kernel, which is quite modern.

If I would be in your shoes, I would start looking in the internet for issues with that particular motherboard. Maybe particular kernel parameters are needed for the Linux to successfully work.

For example, there is a guy who has issues in installing Linux and having your motherboard.

https://forum.giga-byte.co.uk/index.php?topic=14802.0

Using my Ubuntu-Fu, I also found someone who seems like has a solution for similar issues

https://ubuntuforums.org/showthread....8#post12851568

I understand that he used "iommu=soft" on kernel command line to make a 64bit kernel of Ubuntu to work.

Another guy even in LQ has issues with the USB ports, same motherboard

https://www.linuxquestions.org/quest...at-4175650646/

1 members found this post helpful.

Slackware 15.0 and with "live iommu=soft" (had to add live if remember correctly it was explained in text above) at boot prompt it went all nicely straight into KDE 4 desktop with sound and all.
Installing now on top of my old 14.1 taken from another PC with SSD drive.

In the end, which variant of LiveSlak did you used?

slackware64-live-15.0
But still problems. My second SSD drive is not listed in bios boot priority settings for some reason.
Worked all fine chroot and install things went trough.
In worst case I will have to use pendrive to kickstart things. As understand 0 option gives CLI only to chroot into my system.

Then there's no KDE4 but the Plasma5 as desktop.

I guess that with your motherboard, the Windows uses UEFI.

Did you properly setup the UEFI mode boot in your Linux hard drive?

OR, did you properly enabled the CSM in your BIOS, for booting in the legacy mode? BUT, I for one I would recommend to setup the UEFI mode as boot.

Nope I just used lilo command like old days.
I have to install rEFInd on /EFI/Boot likeyou said, right?
I think I set all to legacy or both in some order.

Well, rEFInd is not included in Slackware, hence neither in your LiveSlak.

I for one I will use GRUB2 for booting the installed system, because is easier for me later to manage the booting.

BUT, no matter which bootloader you use, you need first an ESP partition.

Which can be anywhere in your harddrive, but it should have a precise setup.

First of all, tell me if you used the DOS or GPT disk label for partitioning the Linux hard drive - it's very important to know this information.

Also, I need to know the layout of your partitions. Then, the size of hard disk, the size and order of your partitions.

The target is to create a proper ESP partition for UEFI.

MBR I think it is so DOS?

OK. Did you have somewhere in your hard drive a free space of 100MB (or bigger) for creating a partition from LiveSlak?

Sure, but I think I will continue what you wrote next time. Thanks for all help.

I'm not going to put an answer here except to note that a thread generally should not go beyond 8-10 posts without being sorted. You're at 28 posts by clever people and still no nearer a solution. The answer might be staring at you - in a mirror.

Re-read the answers you have been given, do the work suggested, answer the questions fully, do your own research too. Then things will happen. Until you can set up uefi the standard way by hand, you can never do it a non-standard way.

Maybe AI could be added to UEFI so he could write an automated hardware detection and software setup program.
AI is so popular now. He could automatically detect disk labels for partitioning and other things.
Would be the after-ai era of computing.