Complete HOW-TO Linux Mint 18.1 32/64 RTAI or PREEMPT with RIP install or deb

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20 Dec 2017 19:52 - 20 Dec 2017 19:53 #103400 by megaplow
Aside from version numbers and no need to patch linux-4.14.7 (so far as I can tell), there was only one change needed from a post on page 32.

python-imaging-tk should be changed to python-pil.imagetk

Good luck on the remodel!
Last edit: 20 Dec 2017 19:53 by megaplow.
The following user(s) said Thank You: cncnoob1979

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20 Dec 2017 20:13 - 20 Dec 2017 20:14 #103401 by cncnoob1979

megaplow wrote: Aside from version numbers and no need to patch linux-4.14.7 (so far as I can tell)


megaplow, what do you mean by not patching the kernel? Just making sure that you know you have to patch the kernel for real-time operation. I'm sure you probably meant something else; but just incase.

I updated all the posts on page 1 to reflect the package name; Thanks ozzyrob; megaplow

python-imaging-tk should be changed to python-pil.imagetk


Thanks for the Luck!
Last edit: 20 Dec 2017 20:14 by cncnoob1979.

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20 Dec 2017 20:28 #103402 by megaplow
Crap!
That would have been a big oversight. The patches in the home folder where the linux builds, go up to 4.14.7 but when I tried applying them they said there were already applied. So what you are saying is I should go through the process with 4.14.6 instead of 4.14.7. The reason is, the newest patch in the projects folder is:
www.kernel.org/pub/linux/kernel/projects...-4.14.6-rt7.patch.gz

I don't mind starting over, I want to make sure this is right and clean.

Thanks for the tip!

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20 Dec 2017 20:41 - 20 Dec 2017 20:41 #103403 by cncnoob1979
Myself personally, I would steer clear of using the latest kernel for a first build. New kernels can have their issues and can be difficult to diagnose. After a successful first build I would then build with the latest kernel if I wanted to test out the latest stuff.

I would use a kernel version already tested by others. But of course feel free to use what ever you may want.

You should have downloaded a vanilla kernel then you apply the RT patch to that kernel. If I understand what you are saying that the RT patch has already been applied to the kernel you downloaded?

If so I am not familiar with an already RT patched kernel (I am familiar with a RTAI kernel). If anyone else here is familiar with a kernel that is already patched in the kernel.org repo please feel free to correct me.

Am I correct is my statement?

what does uname print out?
uname-a
Last edit: 20 Dec 2017 20:41 by cncnoob1979.

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20 Dec 2017 20:50 #103404 by cncnoob1979
Ok I re-read your post and I had misread your post;

You have to match the version numbers with the RT patch.
Kernel 4.14.6 is the latest kernel you can use with Real Time patch.

www.kernel.org/pub/linux/kernel/projects...-4.14.6-rt7.patch.gz

So you will need to download a vanialla kernel of 4.14.6 if you want to build the latest kernel using RT.

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20 Dec 2017 20:50 - 20 Dec 2017 20:51 #103405 by megaplow
uname gives me 4.10.0.38 generic. I guess I should be using linux and patches that match that eh?

Looks like there are no patches in the rt dir for 4.10... sadface
Last edit: 20 Dec 2017 20:51 by megaplow.

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20 Dec 2017 20:58 - 20 Dec 2017 21:05 #103406 by cncnoob1979
I think you are confusing kernel version patches with RT patches. A kernel version patch is different from RT patches.

You will need to download a kernel that you want to use ;
4.14.6 and older

Also you have to download a RT Patch that matches the kernel version number.
4.14.6-rt7 and older (the rt7 means real time ; revision 7) you match the base version of the kernel. Meaning you can use

4.14.6-rt6
4.14.6-rt5
4.14.6-rt4

ect...

I hope i'm not confusing you.

The RT-7 patch
www.kernel.org/pub/linux/kernel/projects...-4.14.6-rt7.patch.gz

The matching Kernel version
www.kernel.org/pub/linux/kernel/v4.x/linux-4.14.6.tar.xz
Last edit: 20 Dec 2017 21:05 by cncnoob1979.

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20 Dec 2017 21:59 #103408 by megaplow
I went with Linux Mint 18.3... Things seem to we working, but I missed that you started with 18.1. There is no need for me to be on the latest greatest. If 18.3 wont work, I can go back and do an 18.1 instal with the 4.9.68 kernel and rt patch.

Whaddia think?

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20 Dec 2017 22:24 #103411 by cncnoob1979
All distro's are about the same and you should be just fine on 18.3

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22 Dec 2017 16:23 #103459 by megaplow
I am getting through most of the process a successfully, then the operation fails when the disk is full.

ld: final link failed: sound/pci/vx222/snd-vx222.ko: final close failed: No space left on device
No space left on device

Is it possible to run all these commands in a different location than the home folder?

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