RealtimePi | box raspebrrypi/raspbian distro
kandi X-RAY | RealtimePi Summary
kandi X-RAY | RealtimePi Summary
An out-of-the-box raspebrrypi/raspbian distro with a realtime kernel
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QUESTION
I have installed lttng on my Raspbian running on a Raspberry Pi 3 Model B+.
I get the following error when following a first demo from the website (as root):
...ANSWER
Answered 2018-Sep-19 at 15:21From the uname -a
output I can see that you are running a PREEMPT RT
Linux kernel as you probably know because your hostname is realtimepi
.
When you are running a kernel that was not packaged by your distribution you can't simply install the lttng-modules kernel modules as the Linux kernel header files installed on your machine would not match the ones expected by the modules package.
To use the lttng-modules, you will need to compile them from source. Have a look at the documentation on that subject: https://lttng.org/docs/v2.10/#doc-building-from-source. In your case, i believe you only need to build the modules from source.
Make sure you uninstall the lttng-modules-dkms
package and then restart the lttng-sessiond
process before trying again.
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Install RealtimePi
On a UNIX-like operating system, using your system’s package manager is easiest. However, the packaged Ruby version may not be the newest one. There is also an installer for Windows. Managers help you to switch between multiple Ruby versions on your system. Installers can be used to install a specific or multiple Ruby versions. Please refer ruby-lang.org for more information.
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