updated linux-install.md

docs/linux-install.md

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+# Installation Guide for Qitech-Control Software on Linux
+
+This guide assumes you have an already installed linux distribution like debian,fedora etc.
+It needs to a kernel that either has PREEMPT_RT patched or which we heavily recommend a mainline kernel later that 6.12, as versions afterwards have PREEMPT_RT integrated and can be switched with a kernel parameter.
+
+Additionally it is assumed that at least four cpu cores are usable.
+
+## Kernel Parameters
+For our Ethercat control to run determinstically while also being as fast as possible you will need to configure a few kernel parameters.
+Most Distributions use something like grub to persistently configure kernel parameters.
+
+For Grub add the kernel parameters to the LINUX_COMMANDLINE_DEFAULT:
+
+```
+
+```
+
+isolcpus=2,3 isolates the third and fourth core from the system scheduler, cutting down latency
+nohz_full=2,3 isolates third anf fourth core from kernel interrupts
+rcu_nocbs=2,3 isolates read copy update from the given cpu cores, you guessed it less latency
+preempt="full" turns linux into a realtime capable OS. Offering deterministic Execution for programs
+
+After you changed the kernel parameters you have to rebuild the initramfs and bootloader, with something like grub.
+
+```
+# On Most Systems you need this command
+sudo update-grub
+# Or this one
+sudo update-grub2
+```
+
+If those commands dont work for you or you dont use grub then simply, 
+look up for your given distro what you need to do to persist kernel parameters.
+
+## Installation On Generic Linux
+
+This applies to any linux distro, that is not explicitily covered by this guide.
+
+### Download Rust-toolchain
+The easiest way is through rustup, simply execute the script as you home user and for everything keep it at defaults
+
+### Download Npm and Node
+The exact commands depend on which distro you use, but for most npm should exist as a package you can download in the package manager