Linuxcnc 2.4.5 with Ubuntu 10.04, Correct file path or structure ?

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22 Jul 2025 17:55 #332194 by Todd Zuercher

Todd , what do the halscope files do ? Are they a test ? All the Bios settings appear to be correct , to allow the Boot from ISO, tried several times with Tommies advice , still no luck.
 


The halscope files are saved from the Halscope oscilloscope app. They are merely a record of the scope settings and signals that were being used at the time it was saved. So for example I have some Halscope files saved for the settings I use for tuning each of the servos on one of my machines. Using them makes opening and configuring Halscope quicker when doing something you might need to do the same again later or after a restart. But they certainly are not needed for running Linuxcnc.

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22 Jul 2025 18:22 #332197 by dunnitagain
That makes sense , this has Linear Scales for Feedback with Steppers.

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23 Jul 2025 18:27 - 23 Jul 2025 18:29 #332235 by langdons
Ventoy seems to be detected on BIOS-only systems where the Ubuntu ISO would not work on its own.

Try out Ventoy.

Try out Rufus, with different settings.

I installed Ubuntu on an old, BIOS-only laptop (c. 2011 Dell XPS l702X); Ubuntu only boots if the system partition of Windows 7 is there on the disk.

I strongly recommend leaving about 100GB unallocated during install so you can always install Windows 7 to that 100GB just so it will boot at all.

Note: If Windows is installed using the whole disk, it seems to put everything in a single partition; if you choose a custom install (using only part of the disk), it seems to install the OS to one partition and the boot stuff to another, small partition. You can delete the OS partition, but the boot partition might be necessary.

(Don't ask me why Ubuntu needs the Windows BOOT partition to work on my laptop, it just does.)
Last edit: 23 Jul 2025 18:29 by langdons. Reason: Added reminder about Ventoy.

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23 Jul 2025 23:35 #332244 by dunnitagain
There is nothing on the Hard Drive except Ubuntu

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24 Jul 2025 00:06 #332247 by tommylight
Do you have any other older PC?
You can install everything on another PC then move the drive to the machine PC and it just works 98% of the time.
What is the PC make/model?
Try pressing F12 for Dell (F8 for Asus and F11 for some others) with the USB inserted and right after powering on, see if it shows a bootable device list.
Try a different USB, i refuse to believe any PC after roughly 2002 will not boot from USB, even earlier PC's mostly boot from USB without issues.
Is the HDD a PATA or SATA?
PATA = 40 or 80 wire flat cable
SATA = small connector with thin wire, usually black or red color.

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25 Jul 2025 11:38 #332301 by dunnitagain
I will try that tommorrow , There is no real Identification on the PC, Small Black Box , Has a Motherboard and a Hard drive only.

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