for questions concerning Ubuntu's kernel, including compiling and questions relating to modules

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modprobe error FATAL: Error inserting : Invalid argument

I have ubuntu 12.04 running on my ARM board. I recompiled the kernel recently. Even after recompiling the kernel, I was able to load modules using modprobe device_name. For example, modprobe rtlwifi. ...
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38 views

Kernel: what is the correct process to update changelog

I am trying to figure out the correct process to update the debian pkg changelog, whenever we apply a patch in our local copy of kernel. Have tried the below steps, but not sure if it is the correct ...
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63 views

Kernel message, apparently from graphics system

I've been trying to figure out what this syslog entry might mean: kernel: [ 5565.577087] [drm:vlv_set_rps_idle] *ERROR* timed out waiting for Punit Now, "drm" seems to stand for the Direct ...
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146 views

Shutdown does not work for Linux kernel 4.2.6

On a Intel NUC5 computer under Trusty, I had to install Linux kernel 4.2.6 to make wifi & hdmi sound work. However, Shutdown now hangs (on the screen displaying dots under the word Ubuntu). Any ...
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43 views

Properly Restore On Dissimilar Hardware?

I am trying to restore a backup from one HP Linux server (G7, Ubuntu Server 14.04.3) to another HP server (G5) with some dissimilar hardware. The backup is taken via Barracuda's Backup appliance. The ...
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143 views

Joystick doesn't work

My joystick doesn't get a device node file (for example: /dev/input/js0 or /dev/input/event0), so I can't use the controller. I am using ubuntu 14.04 in a chroot with kernel 3.10.18 My joystick is: ...
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59 views

Grub corrupted after removing old kernels

Recently I started getting these error messages on my Ubuntu 14.04 saying that my systemfile disk running low on memory. So I did some research that I need to delete some old kernels, so I checked ...
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41 views

Ubuntu kernel panicking, GRUB not showing Windows 7 in menu. If I boot into the Win7 HDD it takes me back to GRUB

Yeah, pretty much that. So after installing Ubuntu 14.04, Windows 7 from the start wasn't showing in GRUB. I tried toto use boot fixes, but to no avail. Now, after installing Skype from Microsoft's ...
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70 views

i7-5775c and asrock z97 pro4 unable to install ubuntu

Hi i a have a brand new i7-5775c and asrock z97 pro4 with 32gb of memory i'm unable to install any linux except fedora 22 and make it work with windows 10, i followed some post on phoronix but i'm not ...
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52 views

Snappy Ubuntu core boot error - 'Could not open moddep file /lib/modules/3.x.x.x-22-dirty/modules.dep.bin"

I can run Snappy on my x86 platform. I tried to replace the kernel downloaded from the kernel.ubuntu.com and the kernel built successfully. After replacing the kernel and booting the system, this ...
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58 views

Error message about dkms on kernel upgrade

I upgraded to 4.2.3-040203 in order to solve problem of no wifi on NUC5CPYH. I did upgrade by first downloading (from http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.2.3-unstable) linux-headers-4.2.3-...
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19 views

In which terminal we get kernel message, while installation is progress?

tty5 tty3 tty4 All of the above Can you please clear my doubt on this. I am newbie in UNIX. Thanks in Advance.
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26 views

Able to boot via 'Previous Linux Versions' but what now?

I found that I was unable to boot my Ubuntu running 3.13.0-39.66~precise1 (details of why below if it's relevant). I tried the boot option "Other Linux Versions" and selected 3.13.0-37.64~precise1 ...
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20 views

How are kernel drivers updated when manually installed?

In order to solve error "drm:intel_pipe_config_compare [i915]]" (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1492764) I decided to install linux kernel 4.3. in my Ubuntu 15.10. From now, do ...
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88 views

Ubuntu 15.10 Reinstall Kernel Panic Alongside Windows 10

I had Ubuntu 15.10 working successfully alongside Windows 10 in a dual boot. A few days ago a software update messed with my graphics drivers (I think), so I gave up troubleshooting and just ...
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74 views

Unable to boot into Ubuntu 14.04 LTS

I've been using 14.04 LTS for some time without any problems. However, since installing "linux-image-3.13.0-68-generic" via a recent update, I've been unable to start Ubuntu in the usual way. At the ...
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114 views

No audio using hdmi on 14.04 on N3050

No audio using hdmi on 14.04 on N3050 processor: Intel NUC5CPYH computer. The wifi was not working (Intel 3165), so I looked at AskUbuntu and found an answer (I forget the question number), which was ...
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161 views

Intel 6300N not working on Ubuntu 14.04

I've recently installed ubuntu 14.04 on a dell m4600. The system is updated. Everithyng was working fine until some days ago, when I noticed that in my network settings there wasn't wireless ...
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35 views

I have many problems with ubuntu

while trying to upgrade to 15.10 , i get this message unable to securely remove '/usr/src/linux-headers-3.19.0-33-generic/include/config/zeroplus/ff.h.dpkg-tmp': Read-only file system how do i ...
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39 views

Ubuntu: Screen does not wake up — how to get logs?

Twice today my screen wouldn't wake up, and I would need to pull out electricity from the screen and plug it in again. I have a multi-monitor setup, and it only happened to the HP monitor. This never ...
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90 views

Ubuntu 15.10 crashes with RAID-10

When trying to install Ubuntu 15.10 with a RAID-10 created the system crashes after some time during the installation. Hitting Alt+F4 gives the following output as seen from screenshots in attachments....
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134 views

Building Linux Kernel Module Package with Checkinstall

I'm trying to build a debian package for all new Realtek WiFi drivers based on Linux kernel 4.3.0 and release it to the public so they can install them on Ubuntu 15.10 (linux 4.2.0-16). So far, I've ...
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422 views

installing Kernel headers for vagrant in Ubuntu 12.04 LTS

I want to install the Kernel headers in Ubuntu 12.04 LTS (Latest 64 bit (4.1.5-x86_64-linode61)) mounted in Linode Cloud hosting order to install vagrant, but i an not able to find out the installed ...
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37 views

USB internet not working on ubuntu 14.04 lts. How to download kernel , no internet?

i'm not able to connect my reliance dongle as it requires some compiler or kernel to run the setup. Where to get these for my ubuntu 14.04lts?
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354 views

Unbind GPU from Radeon drivers without restarting lightdm

I use a bash script to rebind my GPU for KVM PCI passthrough, but it requires me to stop lightdm to unbind/bind it from the radeon drivers. If I do not stop lightdm, the entire system hangs after a ...
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112 views

Ubuntu 14.04 wifi driver install error

my wifi driver is RTL8188CE, and I have downloaded the driver source code to install the driver. But there are some error: $ uname -r 4.2.0-16-generic $ ...
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228 views

ubuntu 14.04.3 hang during install in kvm under ubuntu 14.04.3

Last Thursday I was trying to setup a couple of virtual machines on my Supermicro server with X10DRL-i chaises and Intel(R) Xeon(R) CPU E5-2609 v3 CPU. aim@itis-lan-1:~$ cat /proc/cpuinfo | grep ...
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185 views

USB 3.0 on Ubuntu

I have Ubuntu 14.04.3 with kernel 3.19.0-31 and my 3.0 HDD is never mounted on usb 3.0 drive. The HP support's guy tolds me something like "Ubuntu doesn't support usb 3.0" but I think he's wrong, ...
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251 views

Problem with touchscreen (Ubuntu can not detect it as hidraw device after shutdown)

I bought a cheap lcd LS-7T touchscreen which I want to use with ubuntu 14.04 on my NUC. I've installed the driver as it was described here: https://wiki.ubuntu.com/Touchscreen it's an eGalax ...
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18 views

I can't get into my HDD, even after I got it unlocked after fresh install of Ubutnu 14.4

The following packages have unmet dependencies: fuse-exfat : Depends: fuse-utils (>= 2.7) but it is not installable E: Unable to correct problems, you have held broken packages. mike@mike-HP-...
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20 views

Slowing time for an application

I want to slow the time provided to an application/Browser. For eg. I want to slow the time provided to Google chrome by 1.1 times, so that Google chrome will show that 10 seconds have passed when ...
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396 views

No network after kernel update

I recently updated the kernel from 4.2 to 4.3 via Ubuntu mainline. As mentioned in here I followed the exact steps and it installed without any issue. Thereafter I updated the GRUB and booted with ...
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86 views

failed package update for linux-image-3.13.0-65-generic (3.13.0-65.106)

Unable to update this old kernel. It isn't all that necessary, but I'd really like to figure out why apt-get update won't work. Here is a copy of the terminal output. Unpacking linux-image-3.13.0-65-...
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17 views

Printer Missing

After the kernel was updated to 3.16.0-51, the drivers for my Canon Pixma MG6110 were no longer working. I can't see it and can't print any more. I went back to 3.16.0-49, and my problem was fixed. ...
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52 views

Building a grsec patched kernel for 15.10

I would like secure kernel. I tried adapting the guide at https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel without luck. Is there a proper step by step guide for doing this? Thank you.
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193 views

Nvidia causing system crash

I have a very recently built PC with below specs: Proc:Intel Skylake core i5 6500K MB:ASRock B150 Gaming K4 motherboard OS: Ubuntu 15.10 Graphic Driver: Proprietary Ubuntu release On the other ...
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55 views

Ubuntu 14.04 unable to boot - kernel panic

I have ubuntu 14.04 which is been installed from mini iso image. I have custom kernel 3.14.33 for ubuntu 14.04 and i have built squashfs file system. I'm trying to make a disk with this kernel image ...
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180 views

Help with Compiling a Driver with Kubuntu 15.10

I am trying to compile up a webcam driver for my old HP Pavilion. I have done this before with previous version of ubuntu, but now its having problems finding videodev.h. I have done the following: ...
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33 views

Can not use ubuntu installed on another computer

My PC is old. I tried to install Ubuntu 14.04.3 LTS but it gave errors like probe failed, panic occured, pae, etc. So I took my hdd to new computer and installed there. Then brought again to my PC but ...
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180 views

After Nvidia driver installation System Running on Low-Graphics

After I have installed the NVIDIA Driver I am unable to login to the Ubuntu 15.10. When I log in I get the error SYstem Running on Low Graphics Mode and from there I am unable to reconfigure the ...
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21 views

Lubuntu 15.04 kernel panic after find on mounted ext4 partition image

if I use find in any other directory, it works. If I use find without any parameter on the mounted ext4 partition image, all files are listed. If I use any parameter (e.g. -type f or -size +1M) a ...
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2k views

vmware kernel module updater in ubuntu 15.10

I am trying to install vmware workstation on Ubuntu 15.10 and I got errors : in the latest version of ubuntu ( 15.04 and older ) i can update kernel with this lines : sudo vmware-modconfig --console -...
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95 views

Upgrading kernel from 3.2 to 3.13 on Ubuntu 12.04 with preexisting LXC containers

I'm running several LXC containers on Ubuntu 12.04.5 LTS (Precise Pangolin). The current kernel is 3.2; I would like to upgrade the kernel to version 3.13 (or later) so that I can use Docker. Will ...
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364 views

Why Ubuntu 15.10 won't free cached RAM?

Description of the problem: The issue I'm having is that kswapd seemingly randomly goes into a wild spin and my laptop becomes totally unusable. (edit) This is not a problem if insufficient memory....
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27 views

Linux kernel development

In linux kernel, there is a structure called struct inode. I want to add a new field in inode structure. I am adding a field to it and compiling kernel again. But my kernel is crashing because of that....
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25 views

Kernel OOPS Popups after login

After the login I get thousands off kernel oops popups so I can't do anything. Is there a rescue cd or something like that that I can create with windows and use to fix the problem?
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38 views

Manual Kernel Upgrades

I'm trying to get a better understanding of kernel upgrades. Right now, I'm currently using Ubuntu 15.04, which comes with kernel 3.19. If I do apt-get update apt-get dist-upgrade this will show ...
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64 views

Errors During Kernel Update

Running Ubuntu GNOME 15.04 (just upgraded from 14.04) and I'm attempting to upgrade my kernel to version 4.1.0 and I'm getting these errors and I'm not sure what I should do. It seems like an issue ...
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529 views

Dead Kernel problem - ipython notebook

I started using ipython notebook today. I am having dead kernel problem repeatedly. When I start the notebook, it tries to connect to the kernel, but the kernel dies quickly. Here is the error report, ...
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322 views

Is it possible to install Kernel 3.x on Ubuntu 15.10

the new Kernel inn't compatible with some of the software I need to run. Is it possible to install an older kernel?