current latest download of LinuxCNC V2.9.8 will not install GRUB on several PC's

Tried that same results as with rufus

I also just tried using Rufus in ISOhybrid mode, and DD mode, and Etcher. Even used three brand new USB drives (I have loads of these things where I bought out a local retailer and use them for students)

None of the liveUSB systems were able to completely install the system, and all of them failed at the "installing grub" step. Sometimes they would fail halfway through the "installing system" step.

CSM boot is disabled to force EFI boot, and I've even tried accepting all the defaults during the installer. No luck, and no matter what i do I can not get the installer to accept the realtek-firmware.deb package so I can get network access during the install.

I'm even using a recommended motherboard/CPU combination, the ASrock J3455-itx, and a Sandisk 140GB SSD.

Just in case, does it work with CSM enabled? And secure boot disabled, of course.

CSM enabled does not make any difference for my install when using the LinuxCNC live USB image.

I downloaded the official Debian installer image (not the LinuxCNC specific one) and it ran and installed absolutely fine, didn't even complain about missing firmware, grub installed fine, and it didn't even hiccup once.

From here, I'll follow the normal install instructions for installing the preempt-RT kernel and linuxCNC from packages.

Xnke wrote:

I downloaded the official Debian installer image (not the LinuxCNC specific one) and it ran and installed absolutely fine, didn't even complain about missing firmware, grub installed fine, and it didn't even hiccup once.

That is/was my next question/tip/request/advice!
Thank you.

The Linuxcnc installer uses Bookworm (V12)
The Debian installer is currently Trixie (V1 3)
Trixie has better uefi support at boot

Linuxcnc installer uses Debian's Live Build which is the same as what Debian uses so its odd
so install Debian Trixie and type sudo apt install linuxcnc-uspace linuxcnc-uspace-dev to get v 2.94 (missing a few minor bug fixes)
Install Debian Sid (aka testing) do the same and get v 2.97 (missing one minor bug fix)
Follow this process  on Trixie or Bookworm and then follow the steps in the docs here to get 2.98 (current version)
linuxcnc.org/docs/stable/html/getting-st...th_preempt_rt_kernel