1. J

    How to add a new system call?

    Hello, I am working with 32bit version of RPiOS (kernel version 5.10.103) on raspberry pi 4. I am tying to add a new system call that will first simply print hello world. On the internet i have found many guids but most of them are for x86 architecture. Nevertheless i tried to follow the...
  2. F

    Authentication timed out, RTL8xxxu

    I'm working on a small ARMv5 notebook from 10 years ago. It has the WonderMedia WM8650 cpu, running at 600MHz. My idea here is to make it run a very lightweight Linux with a very basic but useful GUI and nothing else. Its pretty useless for most use cases, but I wanted to "have it working", and...
  3. D

    Ancient outdated custom gentoo install (set up by my dead partner). Not done with, but laptop exploded (Thinkpad T410), SSD fine. Get "new" T410, or?

    [ I just posted this to the gentoo forums Not sure when/if I'll get an answer there, and not sure if anyone here is likely to know any helpful details on this... But I figured I should just go ahead and post a copy here anyway, just in...
  4. L

    Build Android kernel from source

    Hello! Nice to be here. I try to compile android kernel from source, but every time got errors. I found kernel here: Samsung kernel for SM A510F I downloaded tools from here: wget...
  5. N

    "panel-simple.c" display driver clarification

    Hello Everyone. I have to write a new display driver for my embedded board. If I well understood, in the "panel-simple.c" file ("drivers/gpu/drm/panel/panel-simple.c") I have to create a new "panel_desc" struct with the new display timings/parameters. Inside the "panel_desc" structure there are...
  6. N

    make[1]: *** [/linux_work/linux_latest_bootable/Makefile:801: include/config/auto.conf] Error 1

    I'm trying to direct the kselftest output from kselftest. But It works fine with sudo make kselftest but it gives error with O= option and I had tried KBUILD_OUTPUT=/tmp/kselftest. It doesn't show any output report on /tmp/kselftest. sudo make O=/tmp/kselftest kselftest-install gives the...
  7. N

    arch linux cannot detect wifi after I close the notebook, using latest 6.3.2 kernel

    hey, guys, I meet a problem, when I close my notebook for a while, and reopen the laptop I would found that the arch cannot detect wifi, so I try to reboot from terminal, it told me that , then I try to reboot from kde reboot button, it stuck at shutdown interface how can I solve it ? or...
  8. A

    Developing an operating system from scratch.

    How can I make an operating system using the Linux kernel, what should I pay attention to when making an operating system?
  9. jeremyyhh

    load kernel kali 1st install

    I just installed Kali Linux for the first time and after installation it booted to the grub menu and when I typed boot it says error you need to load the kernel first. I have absolutely no [EXPLETIVE REMOVED BY MODERATOR] clue what to do. please help.
  10. N

    Sub-process /usr/bin/dpkg returned an error code (1)

    After typing the following command: sudo apt install mainline -y I'm getting the following error: After this operation, 0 B of additional disk space will be used. Setting up rtl8822ce-dkms (5.7.3~jammy5) ... Removing old rtl8822ce-5.7.3~ppa DKMS files... Deleting module rtl8822ce-5.7.3~ppa...
  11. L

    Changing the kernel

    I have a university assignment where I'm supposed to propose and implement a patch to the kernel. It could be something related to the scheduling algorithm or the file system, for instance. We don't have to necessarily improve the OS's performance, but the changes must do something that can be...
  12. K

    Finding all the kernel source files used when compiling against a certain config file

    I am having some issues with finding all the kernel source files used when compiling against a certain config file? I do not want the full kernel source tree, just the one that went into building the kernel against a certain config setting, like make defconfig or make allnoconfig, etc... Am I...
  13. S

    Unknown kernel command line parameters "BOOT_IMAGE=/vmlinuz-5.18.11-1.el7.elrepo.x86_64", will be passed to user space

    Hi, On centos 7 after upgrading the kernel to version 5.18.11 I observed the below message in /var/log/messages kernel: Kernel command line: BOOT_IMAGE=/vmlinuz-5.18.11-1.el7.elrepo.x86_64 root=/dev/mapper/cl-root ro biosdevname=0 net.ifnames=0 crashkernel=auto
  14. P

    How i've used a recent vulnerability in linux to gain root access and troubleshoot a fedora desktop machine

    Recently i was attempting to downgrade from fedora 36-rawhide to fedora 35-stable, and during this process i've lost the sudo command, and didn't have a pre-existing root account, so i've later on tried to access rescue mode by editing the bootloader options, but as i didn't have root account...
  15. K

    There are a question about the kernel

    Hi, I just started Linux. And I'm sorry for my English. Please help me solve this problem. Can't I use the Ubuntu 18.04 to 5.13.X version of the kernel? I have keyboard and Wi-Fi issue. And in other to solve it, I think it is necessary to install a kernel version of 5.13.X or higher. I...
  16. T

    How to change task scheduler?

    I want to compare the performance of the EAS scheduler with other schedulers like CFS, DEADLINE, etc. As far as I understood from the documentation, there are several schedulers in the kernel, and at a certain point in time, one scheduler can be selected by the kernel, which is responsible for...
  17. R

    My disks are not showing

    Instead of compiling everything, I used apt download and dpg-deb to setup a initramfs. :p But for some reasons i cant find my hard disk in /dev. Also blkid or proc/partition is empty. This happends when i use kernel from apt. Also I dont see any changes to dmesg when i plugin my usb mouse. Now...
  18. M

    do you want xorg in kernel ??

    Polish president of debian wants xorg in kernel . Couse its secure our system and secure xorg . Xorg is a 40 years of work . My name is Milczarski Von and i am a manager of foundation . We want xorg in kernel couse its possibly to tweak a system with that . Wayland is a danger for linux ...
  19. V

    Custom kernel on fedora

    Will I receive fedora kernel updates for my custom kernel. I want to use binder... so thought of compiling the kernel from source enabling binder option... If then, will I be receiving kernel updates from fedora for my custom config (updates except for binder)... Or can i install binder as an...
  20. A

    How to repair kernel version

    I install Ubuntu 20.10 in cloud provider and receive # uname -r 4.15.0-60-generic # ls -ls /boot total 147484 248 -rw-r--r-- 1 root root 248258 Jan 18 17:01 config-5.8.0-41-generic 248 -rw-r--r-- 1 root root 248258 Feb 5 03:41 config-5.8.0-43-generic 4 drwxr-xr-x 4 root root...