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

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Startup problem with Lubuntu 15.04

I installed Lubuntu 15.04 on my PC. It was running perfectly smoothly, so that a few days it is having a strange problem that happens sometimes, not all the time. What happens is that when I turn on ...
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0answers
28 views

amd driver catalyst 13.1 problem 15.04

I got a problem installing amd drivers. Here is the fglrx-install.log: Check if system has the tools required for installation. fglrx installation requires that the system have kernel headers. ...
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0answers
27 views

Kernel error message during boot

Every time when I start my laptop I see these error messages: What is the cause for them and how can I fix this problem?
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1answer
18 views

“Failed to build vmnet” for kernel 3.19

Because this answer is only for kernel 3.13, so I'd like to share a solution for the problem Failed to build vmnet for kernel 3.19 and earlier versions. Thus this is not my actual problem and is only ...
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0answers
7 views

Docker and AUFS with custom kernel issue

I followed the steps on this website to get AUFS compiled in a certain way to use as my drive pooling solution but now Docker service won't start on ubuntu. anyone got any ideas please? ...
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2answers
24 views

Error message with virtuabox with ubuntu as host

I installed virtuabox from their site and now I get this error message when trying to run VBox The vboxdrv kernel module is not loaded. Either there is no module available for the current ...
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2answers
32 views

Wrong headers for Linux version

I have an ODroid U2 running Ubuntu 14.04 LTS and Linux version 3.8.13.30. I am trying to get my USB WiFi dongle working through this tutorial. However, at the sudo dkms install 8192cu/1.10 stage, I ...
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0answers
66 views

Why Ubuntu 15.04 with kernel 3.19.0-15 is using significantly more power?

I've recently upgraded to 15.04 and immediately noticed significantly faster battery depletion and warmer case. My MacBook Air 6,2 would easily hold 10-12 hours on battery power with Ubuntu 14.10 and ...
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1answer
77 views

mei_me initialization failed at boot up

I have an "mei_me" error at system boot-up. May 2 17:47:39 florian-Linux kernel: [ 11.867542] mei_me 0000:00:16.0: irq 62 for MSI/MSI-X May 2 17:47:39 florian-Linux kernel: [ 11.870423] mei_me ...
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19 views

Need to get files back after losing all the linux-image-generic

What I was doing (not as important, just wanna make sure all the info is out there) I'm on Ubuntu 14.10, decided to upgrade to 15.04. I had to delete xorg-xserver because it was broken and Ubuntu ...
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1answer
12 views

Restore ZFS automount

I've upgraded to 15.04 and I found the package ubuntu-zfs to be broken on systemd. I found the bug description on GitHub but I don't know how the procedure to be done as described: The correct ...
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0answers
27 views

There is a way to patch AMD catalyst 14.12 in order to make it work with kernel 4.0.1?

here I go: my OS is Ubuntu 14.04. I was wondering about upgrading the kernel to the recent and latest stable 4.0.1 version (my current one is 3.16). Since I have already installed AMD Omega drivers ...
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1answer
51 views

Ubuntu 15.04 kernel version

I recently upgrade from 14.10 to ubuntu 15.04 and I was expected also the kernel to be upgraded from 3.16 to 3.19, but this wasn't happened! Why this problem? can I do manually upgrade of kernel? ...
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0answers
10 views

Receive notification on new kernel release

I would like to receive a notification (preferably rss digest) on each stable kernel release in http://kernel.ubuntu.com/~kernel-ppa/mainline/ Does anyone have an idea how to parse a new update into ...
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0answers
49 views

Something's wrong with my grub.cfg

I know that's pretty generic, but... I installed updates, which included a new kernel. I removed an old kernel and got: joliver@JOHN-DEV:~$ sudo apt-get purge linux-image-3.13.0-46-generic Reading ...
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1answer
135 views

Error message on booting up Ubuntu 14.04.2 [duplicate]

After upgrading from kernel linux-image-3.13.0-49-generic to linux- image-3.13.0-51-generic, I am getting this error message in dmesg on startup: [ 6.352555] mei_me 0000:00:16.0: irq 47 for MSI/MSI-X ...
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0answers
19 views

purging old kernels fails to remove old initrd files

Can't explain why... I assume it isn't safe to simply manually delete them, so some guidance would be appreciated. Here's a ls of my /boot directory (obviously, I'm running the 3.13.0-51 kernel): ...
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0answers
8 views

Having problems with negative monitor channel, intimidated!

When I try this command: aireplay-ng -1 0 mon0 -a xx:xx:xx:xx:xx:xx I get this output: No source MAC (-h) specified. Using the device MAC (xx:xx:xx:xx:xx:xx) 17:51:23 Waiting for beacon frame ...
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1answer
120 views

Starting version 219 after upgrading to 15.04

I upgraded to 15.04 just before the official release, and have since then been met with this message at boot : device descriptor read/64, error -32 and then : Starting version 219 I could ...
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0answers
22 views

cannot boot into login screen after uninstalling some kernel update packages

In Ubuntu 12.04, I tried to upgrade the kernel as required by a software XXX that I was installing. So as per XXX installation instructions, I installed these packages using apt-get: ...
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0answers
70 views

Slow boot on Ubuntu 15.04 during ACPI

The time seems to be wasted mainly between these two log lines. What could it be waiting for ? Apr 30 01:19:22 terodde kernel: [ 0.907820] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query honored via ...
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0answers
7 views

What exactly is command like “iso-scan” in grub?

In grub manual, it's not mentioned as a grub command. It passed right after linux command. The grub manual says about linux command: Command: linux file … Load a Linux kernel image from file. ...
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1answer
16 views

How to load a iptable matching module? Or is it required to load it expressly? Some related questions

I am running Ubuntu 14.04 LTS. I believe the following shows which iptables matching modules are loaded: sudo cat /proc/net/ip_tables_matches Question: I see conntrack listed three times. Why? ...
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39 views

ERROR: ../libkmod/libkmod.c:556 kmod_search_moddep() could not open moddep file

When I do the command iptables -L, I have this result : modprobe: ERROR: ../libkmod/libkmod.c:556 kmod_search_moddep() could not open moddep file '/lib/modules/3.8.0-38-generic/modules.dep.bin' ...
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0answers
13 views

ubuntu kernel-header issue : Couldn't find any package by regex 'linux-headers-3.14.32-xxxx-std-ipv6-64'

root@mylab:~# uname -a Linux mylab 3.14.32-xxxx-std-ipv6-64 #1 SMP Sat Feb 7 12:07:25 CET 2015 x86_64 x86_64 x86_64 GNU/Linux root@mylab:~# uname -r 3.14.32-xxxx-std-ipv6-64 root@mylab:~# dpkg -l | ...
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0answers
41 views

NVIDIA Driver Problem After New Kernel Build

I'm running Ubuntu 14.04 in my system. Recently I did a clean build from the source code and installed the new kernel but unfortunately when I try to start the new kernel, the desktop remains blank. ...
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0answers
9 views

Ubuntu kernel and microphone support

It seams the latest kernels used by Ubuntu do not support certain models of chips. I use Realtek ALC887-VD and my microphone does not work since the last kernel updates. I use 15.04, previously used ...
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2answers
158 views

linux-headers-3.16.0-36-generic can`t be installed (15.04)

I recently installed vmware player 6.0.5 for linux x86 and before installaton procces I run the command : sudo apt-get install build-essential linux-headers-$(uname -r) [sudo] password for bogdan: ...
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0answers
85 views

Error while starting ubuntu 15.04

After i have upgraded my Dell Latitude E5540 to Ubuntu 15.04 i have the following upon booting up ! Scanning for Btrfs filesystem [FAILED] Failed to start Load Kernel Modules. See "systemctl status ...
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1answer
28 views

When in Linux boot process are filesystems mounted from /etc/fstab?

Question: When in Ubuntu Linux boot process are filesystems (from /etc/fstab) mounted? Rational: I defined the following shared-folders on my Ubuntu VirtualBox VM. openstack@ubuntu:~$ grep ...
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1answer
52 views

Laptop monitor plus two external monitors via dockstation

I have a Dell XPS13 (9333, Intel HD graphics 4400), running Ubuntu 14.04 and connected to a Dell monitor U2412M via VGA to mini DP. What I would like to do is to connect to another monitor (same make ...
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1answer
234 views

nVidia drivers on 15.04 kernel 3.19 stalling system load

all. I recently bombed my Zorin OS 9 system by unsuccessfully installing kernel 4.0 so I decided to go back to Ubuntu - which I haven't used since 10.04 - and am stumbling across some issues. First is ...
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0answers
6 views

Bad Data CRC can't get kernel image while booting imx6 board

I am trying to boot imx6 board with ARM Linux Kernel. But it is saying cant get kernel Image. I am getting the following when seen in minicom: Booting kernel from Legacy Image at 10800000 ... Image ...
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1answer
42 views

Ubuntu 14.04.2 i386 boot hang after installation but fix by using live USB's initrd.lz

Linux newbie here, and would like some support from the community for a boot problem I am seeing. I recently put Ubuntu 14.04.2 (i386) on a AMD Kabini AM1 5350 CPU + Gigabyte AM1M-S2H mobo using live ...
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0answers
13 views

Wimax in XUbuntu?

I have a problem, I am using the Intel Centrino Wireless-N + WiMAX 6150 as wifi and wimax card but I can only use wifi. I googled a lot about drivers and stuff but I can not find the way to activate ...
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1answer
19 views

no kernel loaded

I installed Ubuntu on my laptop, which already had Windows 8.1 installed. Then I uninstalled Ubuntu but when I restart my laptop it boots to GRUB recovery: GNU GRUB version 1.97 beta 4 [Minimal ...
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0answers
87 views

Screen brightness issue Toshiba Portège after 15.04 upgrade

I have a toshiba portège Z30-A-13P. I can no longer adjust my screen brightness after upgrading ubuntu to version 15.04 (kernel 3.19). The screen brightness (as well as the touchpad) didn't work ...
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0answers
15 views

VMware Tools and multiple kernel versions

When I have VMware Tools installed on a machine that has more than one Linux kernel, do I need to run sudo vmware-config-tools.pl once on each kernel? If one kernel requires that the kernel modules be ...
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0answers
10 views

Get Linux kernel to compile with specific name

Official builds of Ubuntu's kernel tend to have names like 3.16.0-33-generic. The generic part is the local build string or whatever it's called and is not what I'm concerned about. How come when I ...
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0answers
14 views

Unable to boot “ERROR: No configuration file found” - NOT USB STICK OR INSTALL

I updated my computer and it updated to the latest kernel. After a restart I get the following: ERROR: No configuration file found No DEFAULT or UI configuration directive found! boot: If I type ...
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0answers
130 views

when installing 15.04 kernel 3.19.6 will it override version 4.0 kernel [closed]

I am about to to upgrade from 14.10 to 15.04 and will it override the 4.0 kernel
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1answer
16 views

Laptop Screen Flashing

i own a hp dv6-3080br laptop and its always been a pain in the ass to use with linux, the most stable system i could get running on it was ubuntu 14.04 with kernel 3.13. i recently updated it to 14.10 ...
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0answers
23 views

Error while configuring kernel [on hold]

When I run this command: update-initramfs -c -k 2.6.35-aniq+ I get an error: update-initramfs: Generating /boot/initrd.img-2.6.35-aniq+ Cannot find /lib/modules/2.6.35-aniq+ update-initramfs: ...
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2answers
31 views

Side-effect on upgrading kernel from generic to low-latency? [duplicate]

I am using Ubuntu 14.04 in embedded And I want to change Linux generic-kernel to Linux low-latency-kernel. But i think if i change the kernel, some programs already installed and devices(for example ...
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0answers
27 views

How to apply a kernel patch?

I am running in to the following dmesg with bumblebee: [ 420.238108] vgaarb: this pci device is not a vga device The same issue has been discussed here The workaround suggested is to apply this ...
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0answers
32 views

What might cause “version 'KERNEL_VERSION' has bad syntax: version number does not start with digit” during update-initramfs -u

When I run sudo update-initramfs -u I get the error output dpkg: warning: version 'KERNEL_VERSION' has bad syntax: version number does not start with digit update-initramfs: Generating ...
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0answers
22 views

busybox error while start up [on hold]

busy box error, due which couldn't able to start up my system.. please help me out to slove this. I tried both advanced and normal mode, but couldn't resolve the problem...busybox v1.22.1 is showing ...
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votes
3answers
16k views

Should I upgrade to the “mainline” kernels?

Newer "mainline" versions of the kernel are available from the Ubuntu kernel team, e.g. 3.4 and 3.5, while Ubuntu 12.04 is on 3.2. What are the mainline kernels? Are they better than my existing ...
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8answers
148k views

How to update kernel to the latest mainline version without any Distro-upgrade?

Currently I'm running Linux-3.0 and I want to update it to Linux-3.3.1 the latest stable kernel release as mentioned at http://www.kernel.org. Can I update to 3.3.1 in Ubuntu without any risk of ...
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2answers
17k views

How Can I Roll Back a Kernel Update?

An update for Ubuntu was available today and it installed the generic kernel 2.6.38.11.26. After doing so networking is no longer functioning correctly. My Acer Aspire 4520 has an Nvidia Network card ...