How can I install a realtime kernel? The long term goal of the RT kernel project is to end up having all the RT functionality in the standard kernel, and this is progressing nicely. The RT patch has had irregular releases in the past, and the hacking of kernel. August 2. 01. 1 made the 3. Ubuntu 1. 1. 1. 0 and 1. If you are using Precise, you can use Alessio Bogani's Realtime PPA, who has kindly packaged the vanilla kernel with the RT patch applied and is keeping it in sync with the version numbers in Precise. If you prefer to build the RT kernel by hand, first install the required software packages: sudo apt- get install kernel- package fakeroot build- essential libncurses. Then fetch the vanilla kernel and RT patch (the version numbers are somewhat old, tweak as necessary): mkdir - p ~/tmp/linux- rt. Alternatively, try http: //mirror. Then configure the kernel using: cp /boot/config- $(uname - r) . The config from the - lowlatency kernel might be a better starting point than that of the - generic kernel. The name for the route section is optional, the interface, target and gateway options are mandatory. Leaving out the netmask option will turn the route into a host route. Setting up the switch (currently broadcom only) The.Then build the kernel with: sed - rie 's/echo . For example, ACPI functions may affect your real time system (as stated on rt. Adding acpi=off may be a solution in such case. This is true of both the PPA packages and the compiled kernel. You can always boot into your - generic kernel and uninstall the realtime kernel packages if they give you trouble, of course. Duplicating filesystems To duplicate everything under directory /SRC to directory /DST with dump(8) and restore(8), do: # cd /SRC && dump 0f -. Note For the latest version of this manual associated with this Yocto Project release, see the Yocto Project Linux Kernel Development Manual from the Yocto Project website. The long term goal of the RT kernel project is to end up having all the RT functionality in the standard kernel, and this is progressing nicely. The RT patch has had irregular releases in the past, and the hacking of kernel. This tutorial is a cookbook of recipes getting up and running with Linus's source code management (SCM) software, 'git.' Its targetted mainly at Linux kernel hackers, though others may find it useful.
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December 2016
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