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I'm trying to install LinuxCNC on Ubuntu 20.04 arm64 and encountering some issue
23 Jul 2023 09:45 - 06 Sep 2023 13:05 #276060
by MakerYang
I'm trying to install LinuxCNC on Ubuntu 20.04 arm64 and encountering some issue was created by MakerYang
I'm trying to install LinuxCNC on Ubuntu 20.04 arm64, and everything went smoothly with compiling from the source code. However, I'm currently stuck at the real-time kernel part. I hope to receive your help and guidance on this matter.
The current system information is as follows:
1、 uname -a
Linux ubuntu 4.14.87 #1 SMP PREEMPT Mon Jun 19 19:21:00 CST 2023 aarch64 aarch64 aarch64 GNU/Linux
2、uname -r
4.14.87
Everything went smoothly with compiling from the source code.
The real-time performance is very poor.
How should I proceed?
The current system information is as follows:
1、 uname -a
Linux ubuntu 4.14.87 #1 SMP PREEMPT Mon Jun 19 19:21:00 CST 2023 aarch64 aarch64 aarch64 GNU/Linux
2、uname -r
4.14.87
Everything went smoothly with compiling from the source code.
The real-time performance is very poor.
How should I proceed?
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Last edit: 06 Sep 2023 13:05 by MakerYang.
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23 Jul 2023 09:49 #276061
by MakerYang
Replied by MakerYang on topic I'm trying to install LinuxCNC on Ubuntu 20.04 arm64 and encountering some issue
The embedded development board I'm using has some documentation that instructs us on how to build the kernel and image, but it doesn't seem to address the issue:
github.com/HorizonRDK/rdk-gen
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23 Jul 2023 10:34 #276064
by tommylight
Replied by tommylight on topic I'm trying to install LinuxCNC on Ubuntu 20.04 arm64 and encountering some issue
Wrong kernel, not a fully preemptible one.
Is there any reason for not using Debian BookWorm?
Installing LinuxCNC on BookWorm is as simple as
sudo apt install linuxcnc-uspace
Is there any reason for not using Debian BookWorm?
Installing LinuxCNC on BookWorm is as simple as
sudo apt install linuxcnc-uspace
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23 Jul 2023 12:30 #276067
by rodw
Replied by rodw on topic I'm trying to install LinuxCNC on Ubuntu 20.04 arm64 and encountering some issue
Ubuntu requires a subscription for the RT kernel. Please use Debian Bookworm per these instructions
linuxcnc.org/docs/2.9/html/getting-start...etting-linuxcnc.html
Compiling from source is not required.
linuxcnc.org/docs/2.9/html/getting-start...etting-linuxcnc.html
Compiling from source is not required.
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23 Jul 2023 13:09 #276069
by MakerYang
Replied by MakerYang on topic I'm trying to install LinuxCNC on Ubuntu 20.04 arm64 and encountering some issue
I also wish to use Debian BookWorm. However, I am currently limited by the development board I am using. If I install Debian BookWorm on this board, I anticipate that it won't be able to boot.
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23 Jul 2023 14:23 #276074
by andypugh
On the Pi that I am on now there is no /dev/gpiomem visible, and that is relied on by hal_pi_gpio.
I am 90% sure that this machine was built using these rules, but can you check for that device on your config?
Replied by andypugh on topic I'm trying to install LinuxCNC on Ubuntu 20.04 arm64 and encountering some issue
I don't think that these instructions result in having access to gpiomem?Ubuntu requires a subscription for the RT kernel. Please use Debian Bookworm per these instructions
linuxcnc.org/docs/2.9/html/getting-start...etting-linuxcnc.html
Compiling from source is not required.
On the Pi that I am on now there is no /dev/gpiomem visible, and that is relied on by hal_pi_gpio.
I am 90% sure that this machine was built using these rules, but can you check for that device on your config?
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23 Jul 2023 14:29 #276075
by tommylight
Replied by tommylight on topic I'm trying to install LinuxCNC on Ubuntu 20.04 arm64 and encountering some issue
Is aarch64 a RPI architecture? Never seen that for RPI, but at the rate they are changing hardware maybe something changed?1、 uname -a
Linux ubuntu 4.14.87 #1 SMP PREEMPT Mon Jun 19 19:21:00 CST 2023 aarch64 aarch64 aarch64 GNU/Linux
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23 Jul 2023 20:24 #276107
by rodw
Replied by rodw on topic I'm trying to install LinuxCNC on Ubuntu 20.04 arm64 and encountering some issue
Please advise what your hardware is. As Tommy observed, it does not appear to be a pi which show up as ARM64..
The kernel you have used seems to be very old.
The kernel you have used seems to be very old.
The following user(s) said Thank You: tommylight, MakerYang
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06 Sep 2023 05:08 #280052
by MakerYang
Replied by MakerYang on topic I'm trying to install LinuxCNC on Ubuntu 20.04 arm64 and encountering some issue
This issue with the device has been resolved. I will share the refined solution later on.
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16 Oct 2024 04:08 #312219
by sameedansar
Replied by sameedansar on topic I'm trying to install LinuxCNC on Ubuntu 20.04 arm64 and encountering some issue
Could you please explain how to download linuxcnc 2.9 on ubuntu 20.04? The whole process if possible
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