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

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128 views

boot updated kernel image on beagleboard

I had installed a kernel on Beagle-board to update image of kernel on to it. I have used command sudo apt-get install linux-image-3.2.0.49-omap It installed the kernel on Beagle-board it also ...
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281 views

wifi on Ubuntu 13.04 for nexus 4 on Sony Vaio laptop with Kernel driver in use iwl4965

I just recently purchased a Nexus 4 phone. I already have an iPhone and the same is working perfectly with my Ubuntu 13.04 wifi hotspot created on Sony Vaio laptop. On searching a lot I found that ...
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136 views

Is it possbile to load module compiled under kernel 2.6.x to a system with kernel 3.8.x

I have Marvell USB wireless driver src which only supports up to kernel 2.6.8. Now my system is Ubuntu 13.04 with kernel 3.8 and I can not compile the src under the new kernel anymore. I found the ...
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287 views

Driver r8169 not working after installing kernel 3.9.8

I tried to install kernel 3.9.8 on my Kubuntu raring, but the network driver don't work anymore! (r8169) I hope that it is fixed as soon as possible. I went to kernel.org and there is written that I ...
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741 views

Cannot get Wireless working by any means on 12.04 (Broadcom Issues)

I am a linux newbie interested in getting to know my computer a little bit better. The last time I even tried linux was Ubuntu 8.04LTS (Hardy Heron). I am not scared of the terminal but I am not ...
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252 views

Kernel panics randomly

My system randomly crashes. I cannot reproduce the crash except using this command: echo c | sudo tee /proc/sysrq-trigger Everytime it crashes (like once a week). I can boot and work with the ...
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43 views

system log not perpetually scrolling?

rsystemlogd is installed - when running - then system log is scrolling too with kernel.log and logging of eth0. Now it happens that system log is not scrolling despite of that rsystemlogd is still ...
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488 views

Can't get kernel module `uinput` started

I'm trying to get my BD remote to work with my Ubuntu media server and XBMC. I've followed the directions here: http://forums.boxee.tv/showthread.php?t=15200 I get everything installed, but uinput ...
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292 views

Xubuntu with custom kernel : why is it using configuration from /boot?

I've downloaded the latest stable Linux kernel source (3.9.4), I'm running Xubuntu 13.04. I'd like to try to build my own kernel, as I'm quite comfortable at my hardware. As suggested, I did the ...
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240 views

dpkg error when installing linux

After running: sudo apt-get -f install or sudo apt-get install linux this error appears: dpkg: error processing linux-generic (--configure): dependency problems - leaving unconfigured dpkg: ...
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1k views

How to fix “Could not connect to kernel driver.” hostapd error?

Hi everyone I have a problem when I try to start hostapd when I enter this command hostapd hostapd-minimal.conf I got this Configuration file: hostapd-minimal.conf Could not set channel for kernel ...
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834 views

Why the installation fails for this package? it says linux-headers not found but it is there

This package is failing to get installed, but the linux-headers are installed. root@sun-Alienware-X51:/var/tmp# uname -a Linux sun-Alienware-X51 3.5.0-28-generic #48~precise1-Ubuntu SMP Wed Apr 24 ...
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395 views

Latitude D630 Fan Not Working

I have a Del Latitude D630 That the fan never turns on. I tried FanControl. pwmsensors doesn’t show anything.
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129 views

how to downgrade kernel image using usb stick (live usb)?

is there a way to downgrade kernel on main ubuntu OS using live USB? thanx i read this: How to downgrade the Kernel on 11.10 , but it seems i need to have access to the OS, while in my case i cannot ...
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307 views

Ubuntu 12.04.2 showing a kernel panic at the startup

I'm using a Acer Laptop 5100 (Athlon 64 TK-53, ATI 1100, 320GB HD, 4GB RAM, Broadcom 4311 Wifi), and I was using for some time Ubuntu 10.04 and later 10.10 64-bit versions without a single freeze. I ...
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112 views

Installed kernel, and printer driver - No Unity?

I ran installation of printer drives for Epson Stylus S22 (From original website) The most recent installs are: 2013-04-10 12:06:53 install linux-image-3.5.0-27-generic:amd64 <none> ...
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423 views

How to enable switching Hybrid Intel/ATi with mux on Ubuntu 12.04?

I have notebook with hybrid intel/ati HD5650 graphic (with mux). I want to install previous kernel 2.6.35 like on ubuntu 10.10 because on that kernel a can switch my graphic without any problem with ...
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730 views

Kernel Panic error: Attempted to kill 'init'

After making a update on my Toshiba Satellite L300D laptop I started getting this error message: Kernel panic - not syncing: Attempted to kill init! exitcode =0x00000007 I am currently running ...
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373 views

Tried to install a Kernel, now i have mutliple problems!

I tried to upgrade the kernal to 3.8.2 but it didn't work. So after learning that 3.8 wouldn't work with bumblebee I tried to go back and install 3.5.25. It still didn't work. uname -r says: ...
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238 views

high interrupts

I have high Rescheduling interrupts and Local interrupts. while doing nothing my total CPU wakeups reach 275-400. While watching movies it reaches up 900-1000. And while browsing the Internet it ...
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148 views

No mouse after fresh install

I installed 12.04 64-bit on a 120GB SSD. I reboot after the install (no errors so far) and the mouse is not working. I tried depmod but this throws an error: /lib/modules/*****_generic is missing ...
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107 views

Where do I get linux-headers-3.0.0 for 12.04

I'm pretty new to Ubuntu, so question may seem stupid. I have a module which used to work on my parents laptop. After several updates module no longer works, and I'm pretty sure, old kernel would ...
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289 views

Unable to install Ubuntu - Kernel panic

I was installing Ubuntu 12.10 but my computer shut down and every time I tried to install, showing the following:
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188 views

What priority to use calling sched_setscheduler

I am writing a server that I do not want preempted by any other user process or "low priority" kernel process. I'm using code like this: struct sched_param sched_param; memset(&sched_param, 0, ...
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51 views

Linux kernel: page substitution policy

I am supposed to answer for homework which algorithm is implemented in Linux for the virtual memory page substitution and also give some extracts of the code to prove that. After some research I have ...
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294 views

Problems with booting Linux after updating kernel

After updating linux headers from 3.5.0-19 into 3.5.0-20 i faced booting problem. I don't know reason, sometimes boots normally, but sometimes i need to reboot 3-4 times. I tried to boot with recovery ...
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1k views

WiFi can't connect after suspend

I've had this problem since Ubuntu 11.10 (my first install) but I was able to get around this issue with this answer. After I installed Ubuntu 12.04.1 I tried to use the same fix as before but I ...
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27 views

Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

The server suddenly became unusable, I tried a reboot and it fails with the same kernel panic. I booted with splash and quiet removed. This is all I have: Begin: Running /scripts/local-premount ... ...
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8 views

X-cursor size decreased after Linux kernel upgrade

Compositing doesn't work well in ubuntu-mate 14.04 in kernel 3.13 so I upgraded the kernel to latest 3.19-rc5 where it works awesome. However, my xcursor's size has diminished. I tried changing ...
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14 views

Binding device to a driver module

I'm trying to understand better the process of binding a device to its driver. I have an USB tool (In System Programmer for Arduino) whose Id (Product and Vendor) are known. The driver, cdc_acm.ko, ...
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19 views

/lib/modules/3.8.13/build folder missing

I am installing a Wi-Fi driver on to my BeagleBone Black with Angstrom running. As I was compiling the driver I got this error root@beaglebone:~/Desktop/WLAN-AIO-OSR/build# make BOARD_TYPE=arm ...
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12 views

How to build extra kernel package that contains aufs.ko module?

How to build extra kernel package that contains aufs.ko module? Thanks. We used these options which did not generate linux-image-extra package for our flavor. AUTOBUILD=1, full_build=true
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27 views

Installation Error :(

I tried Ubuntu 14.10 (64 & 32 Bit) & Ubuntu 12.10 (64 & 32 Bit) I get this error every time I select & entered "Install Ubuntu" I am installing Ubuntu using a USB [21.317787] Kernel ...
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24 views

Missing initramfs from usb boot drive

Every time I try to boot up an Ubuntu distro on my laptop (11.10, 13.04, 13.10, 14.04, 14.10) I get this kernel panic message on boot: Kernel panic - not syncing: VFS: Unable to mount root fs on ...
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51 views

Kernel panic while installing CentOS 7 in VirtualBox

I have a laptop with Xubuntu desktop 14.10 , and I installed VirtualBox and updated it to the latest version . I'm trying to install CentOS 7 (source downloaded from the official site) as a VM, ...
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61 views

12.04 LTS: Kernel Update to 3.13.0-44 broke my-weather-indicator

After doing the kernel update today, my-weather-indicator disappeared from the indicator bar on my 12.04LTS boxes. If I try to start it manually, the icon flashes in the launcher for a couple of ...
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18 views

FlexMAC and Madwifi installation problem for Atheros WLAN Device

I'm trying to install FlexMAC to develop WLAN 802.11 specific protocol. I'm using Ubuntu 12.04. Machine configuration: root@f:/home/f/madwifi-0.9.3.1-FlexMAC-RA# lscpu ...
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29 views

Bad kernels upgrade, and it is impossible to delete them

I have a huge problem on my Ubuntu 14.04. It runs an 13.3.0-39 kernel. A while ago I wanted to update the kernel via Synaptic to 13.3.0-40 and 13.3.0-43. Unfortunately, the kernel upgrade did not ...
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16 views

boot to ram, squashfs filesystem and custom kernel

I am trying to boot my Ubuntu based custom linux OS to ram. I compile the kernel from scratch, so it does not have aufs or unionfs. I don't want to patch the kernel. It seems the live-boot-tools ...
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82 views

Can't connect to PPTP VPN with ufw enabled on Ubuntu 14.04 with kernel 3.18

Suddenly VPN disconnected and can't reconnect no longer on kernel 3.18.1, so I try to install kernel 3.18.2 but my problem still exist. But I can connect to VPN with 3.14 kernel easily. The output of ...
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17 views

Kernel Error Message when installing /demo/repair

I got this error when trying to install /demo/repair disc for Ubuntu 14.10
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60 views

Error calling EVIOCSKEYCODE

Using 14.04, I have the following error displayed when booting up: Error calling EVIOCSKEYCODE It doesn't cause any problems with the system, but I would still like to remove it. Now, I managed ...
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25 views

Kernel panic occured in Ubuntu Trusty tahr i386

I recently downloaded the i386 version of Ubuntu 14.04 and tried using it from a live CD (I burned). But while loading, I saw the message Kernel panic occured switching back to text console. But ...
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40 views

Alfa AWUS051NH v.2 doesn't work on Ubuntu 14.04

I have a brand new Alfa AWUS051NH v.2 but it shows up and disapears permanently on a Ubuntu 14.04 and somtimes the result is a kernel panic (switching to text mode and stoping the machine). I noticed ...
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30 views

Dual Boot Ubuntu from USB on a Mac: “Loop not found” and “Load Kernel First” Error in GRUB

I have the Mac version of Ubuntu loaded onto a USB, booted using ReFINd with an EFI partition. All runs until I select the Ubuntu EFI Boot in reFINd. Once loading begins, I get a "Loop not found", ...
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17 views

can not build kernel 12.04 omap4

there is no way to build custom kernel for 12.04-omap4 pandaboard. I already tried all examples in internet available. Actually it worked until kernel version linux-ti-omap4-3.2.0-1455. The newly once ...
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19 views

System doesn't start on one kernel version

I have a weird problem. I've recently installed quite much different stuff for GPU and network card, I also updated the kernel many times. I don't know how many of them was actually necessary. And ...
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29 views

Grub2 Add Kernal Boot Flags

In grub I need to add kernel flags to one entry but not another. I plan on doing this by adding a custom boot loader. If this is the script I plan on using to boot the OS, where do I place the kernel ...
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17 views

Netem command for GE Model

Am using Netem commands to check network impairments, In this regard I would like to use Gillbert Elliot model to check the loss pattern. Some where I found a command like this, tc qdisc change dev ...
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121 views

'Remix' Live CD won't boot. Kernel panic - not syncing: Attempted to kill init

So I'm creating a Ubuntu Remix CD based on this guide: https://help.ubuntu.com/community/LiveCDCustomizationFromScratch I'm pretty sure I've followed all of the tasks listed there. I move the test ...