building linuxcnc-dev on ubuntu 16.04 preempt-rt kernel

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8 years 6 months ago #108685 by dbanks
Replied by dbanks on topic building linuxcnc-dev on ubuntu 16.04 preempt-rt kernel
make -j4 is taking a lifetime.

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8 years 6 months ago #108688 by PCW
Replied by PCW on topic building linuxcnc-dev on ubuntu 16.04 preempt-rt kernel
it will if you dont have 4 cores...

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8 years 6 months ago #108689 by dbanks
Replied by dbanks on topic building linuxcnc-dev on ubuntu 16.04 preempt-rt kernel
Definitely a quad core.

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8 years 6 months ago #108690 by dbanks
Replied by dbanks on topic building linuxcnc-dev on ubuntu 16.04 preempt-rt kernel
Having a hard time selecting the new kernel, can someone fill me in on where advanced options---> select new kernel is?

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8 years 6 months ago #108691 by thang
Replied by thang on topic building linuxcnc-dev on ubuntu 16.04 preempt-rt kernel
i forgot how to set up grub but u can try this:
askubuntu.com/questions/82140/how-can-i-...older-kernel-version

the easiest way is press shift while booting

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8 years 6 months ago #108692 by dbanks
Replied by dbanks on topic building linuxcnc-dev on ubuntu 16.04 preempt-rt kernel
Running into no such file or directory errors with dkph check builddeps, ./configure-with and ./autogen is this as a result of the wrong kernel?

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8 years 6 months ago #108693 by dbanks
Replied by dbanks on topic building linuxcnc-dev on ubuntu 16.04 preempt-rt kernel
Pressing shift while booting didn't do anything, I appreciate it though!

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8 years 6 months ago #108694 by thang
Replied by thang on topic building linuxcnc-dev on ubuntu 16.04 preempt-rt kernel
you can check what kernel you are using in terminal by command: uname-r .

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8 years 6 months ago #108695 by dbanks
Replied by dbanks on topic building linuxcnc-dev on ubuntu 16.04 preempt-rt kernel
Comes up with 4.13.0-38 generic, which by my masterful googling seems to be no good.

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8 years 6 months ago #108697 by dbanks
Replied by dbanks on topic building linuxcnc-dev on ubuntu 16.04 preempt-rt kernel
I got to Grub it was esc AFTER my bios screen. However selecting the kernel says unable to mount root fs on unknown block. Any ideas?!

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