What is the sequence loading linux kernel module on startup? How priority is...
I have a Linux kernel module which I compiled dynamically. How is it added to startup? There are lot of .ko files in /lib/modules. How is priority set for loading these modules?
View ArticleWhat and How to install Ethernet adapter drivers
I'm currently trying to set a computer with Ubuntu Server (version: 16.04.3). I believe the drivers for the wireless adapter are installed, but I need the iwconfig utility/command to configure it. But...
View ArticleHow to autoprobe block devices in initramfs?
I am building a custom Alpine image based on isolinux. Basically, I am squashing rootfs, and mounting it as overlayfs. Bootloader does its job fine, kernel loads, but I am stuck at initramfs. Let say...
View ArticleHow to find official documentation about Linux kernel namespaces?
I've been using Docker for a while and I'm interested in learning its internals. I've read about kernel namespaces it uses. But I don't understand how they are used. So my problem is: I haven't found...
View ArticleButtonless Elantech Touchpad Issues
Recently, my touchpad has broken a few different ways: No "area" functionality for Mouse Click Emulation No click-and-drag with one finger click and another finger drag libinput has incorrect...
View ArticleAdding IPVS to the kernel
I am trying to setup keepalived on a pair of VPS load balancer servers. I have hit the road block of IPVS not being included with the kernal. IPVS: Can't initialize ipvs: Protocol not available I am...
View ArticleDiscover WiFi driver with Ubuntu to install on CentOS 7
I installed CentOS 7 Minimal on a Yoga Pro 2. However, I'm not able to "up" the WiFi device w1p3s0 despite following numerous guides with ip link, nmcli and nmtui. The same guides work very well when...
View ArticleHow to make Realtek nic use r8168 driver
I've been trying (unsuccessfully) for the last few days to make my Realtek ethernet card to work. I have no problems with my wireless connection: only the ethernet connection doesn't work. I have...
View ArticleRealtek Firmware Installation Error
Im working on an odroid HC2, which runs Debian 9 "Stretch". In my logs, I can see that there is a driver missing for Wifi: usb 1-1: request_firmware(rtlwifi/rtl8192eu_nic.bin) failed So i installed...
View ArticleSet i'th value of kernel module array with command line arguments
Given a kernel module arraymod.c with the following array declaration: static int myintArray[2] = { -1, -1 }; static int arr_argc = 0; module_param_array(myintArray, int, &arr_argc, 0000);...
View ArticleScaling issues of i7 3520M with intel_pstate module on Kernel 3.10.0
Few days ago I updated my openSUSE 12.3 system from Kernel 3.9.8-1.gf3348a8-desktop to 3.10.0-1.g3dcd746-desktop and since then, turbo mode of my i7 3520M is enabled by default and it does not...
View ArticleCould not find libmount
During compilation of customized distribution (using buildroot v. 11.2018) I have problem with libmount library (the problem appeared after I had included efl package in buildroot menuconfig - Target...
View ArticleCentos 8 - VirtualBox 6.0 Install - kernel module issues
I recently installed a fresh copy of Centos 8 and am attempting to install VirtualBox-6.0 and ran into the following: WARNING: The vboxdrv kernel module is not loaded. Either there is no module...
View ArticlePCI hardware access speeds - Kernel vs user space [closed]
Hi there Linux experts! I'm trying to find the best way possible to control and stress a PCI device. I've started off with writing a simple bash script that uses the commands from pciutils (lspci...
View ArticleHow to Disable Kernel module installation capability in Unix Based operating...
As we are living in the Linux kernel rootkit era, Is there any way to Disable any additional module to load into operating system kernel by any user or any operation or command , in Unix? some sort of...
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Your kernel headers for kernel 2.6.32-504.e16.x86_64 cannot be found
I have centos 6.6 installed on virtualbox. In order to use features like copy/paste, being able to share folders, etc, I need to install Guest additions on it. I've clicked Device -> Insert Guest...
View ArticleHow to correctly create and stop kthreads?
I wrote the following kernel module: #include <linux/module.h> #include <linux/kernel.h> #include <linux/delay.h> #include <linux/kthread.h> #include <linux/sched.h>...
View ArticleAnsible Search for kernel module loaded
I am trying to write an ansible playbook to check to see if a particular module is loaded for the current kernel running. if I do an lsmod | grep my_module_$kernelVer I would see something like...
View ArticleHow to rebuild gcc plugins for kernel module
I've been working on the gcc plugins included in the kernel headers. I have a Manjaro Linux distribution, and I'm trying to get the system to rebuild the gcc plugins. Unfortunately, I can't seem to...
View ArticleUpdating HP bios (that comes packaged as rpm)
So, I'm trying to update the bios of my HP Z230 workstation (don't ask why..). It comes as a one-two punch: the 'xwbios' kernel module as a source rpm named hp-lxbios-mod..src.rpm and the 'lxbios'...
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