Jump to content

Help with Netboot - PXI running NI Linux RT 2019


Ryan Vallieu

Recommended Posts

I am attempting to configure (or attempting to learn to configure, which is step 1) our National Instruments PXIe-8840QC system that is running NI Linux RT for PXI 2019 (what is purportedly OpenEmbedded Linux with the Preempt-RT patch) to Netboot with a Linux Server.  I have demonstrated netboot with the server using another target with CentOS.

I'm having trouble trying to figure out how to capture or build the initramfs .img file that I need to reference on the Server for the PXI system.

I have found a folder on the system labeled ./lib/modules/4.14.87-rt49-cg-7.0.0f0-x64-189-build/include/config/intramfs when I do a find for initramfs - but there is not an .img file in the /boot folder like I have been used to seeing.

Anyone have any insight to impart on building the initramfs~.img file from my existing Linux system?

 

We need to Netboot in order to run our systems diskless.  We run secret level tests and SOP is to remove and hand over any HD in systems involved in the collection of data - which gets costly!

Link to comment
  • 1 month later...

Well I was playnig around with PXE boot and the PXIe controller and got the system to PXE boot with tftp and using the kernel bzImage and initramfs files from /boot/.safe - but that is only the safemode boot image.  But it worked properly and demonstrated to me that if things are done correctly I should be able to PXE boot.

 

Checking the LVRT repo on Github, I noted it mentioned building the kernel and installing in the folder location /boot/runmode <- in this folder I found the runmode kernel bzImage  file and runmode initramfs

 

Trying to use those files for the PXE boot, the kernel loads, but there is an error with the initramfs loading.  

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.