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

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0answers
32 views

Why `apt-get dist-upgrade` in EC2 image does not update the kernel?

I've built a system running Ubuntu 14.04 on EC2, using the AMI from Ubuntu's cloud-images repository. The AMI includes kernel 3.13.0-37, but 3.13.0-39 is available as an update. After running ...
0
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0answers
25 views

How do I implement multiple keymaps into a kernel?

my problem is as follows: I have a custom-made kernel that has no functionality in regards of changing the keyboard mapping. It is possible to compile a different keymap into it, but that's it. The ...
0
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0answers
36 views

Unable to boot Ubuntu 14.04 on Dell Precision T7500

I tried to install Ubuntu 14.04 64-bit on my DELL Precision T7500 workstation. But even after trying for many times, the installation process hangs in between. So I installed Ubntu 13.10 64-bit. Later ...
12
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5answers
14k views

How to install “perf” monitoring tool?

Could someone help me to install perf monitoring tool, please?
2
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0answers
104 views

Why can't my udev rules rename kernel device nodes after upgrading from 12.04 to 14.04

In Ubuntu 12.04 I wrote the following udev rules to fix the /dev name of a USB RF remote control. These were: KERNEL=="event[0-9]*", ATTRS{name}=="BTC USB Multimedia Cordless Keyboard", ...
0
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2answers
45 views

Interpreting uname output: 32 or 64 bit?

I used uname command and obtained: Linux rufusruffcutt 3.2.0-35-generic-pae #55-Ubuntu SMP Wed Dec 5 18:04:39 UTC 2012 i686 i686 i386 GNU/Linux What do this mean and how can I tell if this is a 32- ...
1
vote
2answers
60 views

Recovering grub using Ubuntu Live USB

I have Ubuntu 14.04 (64-bit) installed on a Dell server. I wanted to use one of the earlier kernel versions and I edited /etc/default/grub for this. It seems like I made something wrong. After ...
12
votes
3answers
21k views

Command to rebuild all DKMS modules for all installed kernels?

Occasionally, my system gets into a state where some kernels are missing a module or two, because DKMS somehow forgot to compile those modules for that kernel. Rather than spend time diagnosing the ...
0
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0answers
25 views

Circumventing MacBook Pro's motion sensor using /dev/input/js0 as a joystick

I'm on a MacBook Pro 8,1 running 14.04 and I've never plugged in any device with a joystick to my laptop. When I was trying to fix an input problem I was having, I checked /dev/input/js0 thinking that ...
0
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1answer
60 views

ubuntu 14.04 not working after kernel update how can I save my ubuntu system?

ubuntu 14.04 not working after kernel update how can I save my ubuntu system? yesterday , when I updated the ubuntu 14.04 and its kernel core , it asked me for a reboot! and then I cant access to my ...
0
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0answers
154 views

ubuntu 14.10 shows kernel panic error on startup after upgrade from 14.04

i upgraded from 14.04 to 14.10, when prompted by the system update utility during the upgrade some packages did not install properly / gave errors (i cant remember which packages) after restart it ...
15
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3answers
4k views

What is an kernel update with “Bump ABI”?

As you can see in the changelog for the Linux kernel, there are update messages like "Bump ABI - Maverick ABI 28". According to the Ubuntu Wiki, ABI is something like a bridge between the kernel ...
1
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1answer
73 views

Updating linux kernel

Is it possible to update the Linux kernel without installing a new version of the Linux distro? If I want to download the kernel from the Linux website and manually install by compiling it, how can it ...
0
votes
1answer
17 views

Read vlan priority and write that priority in text file [closed]

I want to read vlan packet in such a way that it should read vlan Id and vlan priority and write it in text file. My text file having pairs like "vlanid vlanproirity". 1. How do i read vlan id and ...
0
votes
1answer
12 views

Dynamic Right sizing for TCP implementation in linux

Is Dynamic Right Sizing(DRS) implemented in linux kernel(3.4 and above) by default?.In this link(http://public.lanl.gov/radiant/software/drs.html) patches for kernel 2.4.23 and 2.4.8 are available but ...
0
votes
1answer
15 views

Toshiba 2800-200 lubuntu installation failure

So I have an old toshiba running win ME, and I want to use it again. I thought I could just install lubuntu with a pen drive. The problem is when I choose the installation mode, it freezes until i ...
0
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1answer
122 views

Linux kernel discrepancy 3.11 and 14.04

I am trying to execute this command: $ sudo apt-get install build-essential linux-headers-$(uname -r) Reading package lists... Done Building dependency tree Reading state information... Done ...
0
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1answer
266 views

Unable to boot after update to linux-image-3.13.0-39-generic

Running Ubuntu 12.04 LTS on Intel-based computer. I ran the update package for a new release Linux and it seemed to be successful, but when rebooting, I was unable to boot. I booted to a previous ...
6
votes
1answer
7k views

Nvidia drivers don't work with mainline kernel

I want to try some of the new features in the btrfs filesystem, and to do that I need to use a newer kernel than is included in Ubuntu 12.04. To do that, I have installed ...
0
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0answers
43 views

How to resolve the kernel panic problem of my ubuntu os?

The system has crashed (kernel panic) several times where a black console screen appears (figure below) displaying "Kernel panic.. switching back to text console" & the system freezes (requiring ...
0
votes
1answer
118 views

Ubuntu (Kubuntu) not loading - problem with ati catalyst proprietary drivers

I have problem - upgrade kubuntu 14.04 to 14.10 and after this os not loading. I try with fresh install of ubuntu, after formating but problem is same. I see on driver notes this, may be this is ...
0
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1answer
117 views

No network after unplugging cable and plugging it back in

I have: OS: Kubuntu (x64) Distributor ID: Ubuntu Description: Ubuntu 14.04 LTS Release: 14.04 Codename: trusty Kernel: 3.13.0-29-generic My network card works OK when I boot up my laptop, but ...
0
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1answer
193 views

Gave up waiting for root device ubuntu 14.10

I have recently installed Ubuntu 14.10 (kernel v3.16.0-23) I am new to Linux environment and learning how to compile-install-boot new kernel image. I downloaded kernel 3.17.2. Compiled and built the ...
0
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0answers
126 views

grub rescue> unknown command “kernel”

I have Ubuntu 12.04 installed on my laptop, everything worked fine, but today I got this message: error: hd0 out of disk. grub rescue> This happened to me before, and usually I solved it with ...
4
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2answers
4k views

What is the impact of the nolapic parameter on a multiprocessor laptop?

I have an Asus X71SL with an Intel Dual Core T3200 processor. Any kernel version after 2.6.35-rc2 won't boot up on my machine without the nolapic kernel parameter at bootup. I have already reported ...
0
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1answer
60 views

A question about the last security update for Ubuntu [duplicate]

I'm subscribed to the Ubuntu Security Notes, so everytime that I receive an e-mail, a new update is avalable. But in the last update, they wrote something in the end that I coudn't undertand much, so ...
0
votes
1answer
43 views

Can linux-lowlatency be used with UEFI secure boot?

I am using the linux-lowlatency package as my main kernel (as the generic kernel produces horrible lags while playing audio to my bluetooth speakers). I regularly find that my /boot partition is ...
1
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2answers
3k views

My computer doesn't recognize the following library: linux/config.h when compiling

I have code written in C and I have included some libraries such as linux/config.h and linux/kernel.h. Whenever I compile the file, it gives me an error saying No such file or directory ? Is there ...
0
votes
1answer
133 views

Install 64-bit kernel in 32-bit Ubuntu

I want to use an application that is only available in 64-bit, but my Ubuntu installation is 32-bit. The application is proprietary, so I can't even recompile it for 32-bit. I've read that I should ...
0
votes
0answers
22 views

Disable psmouse add start up using modprobe

My touchpad just doesn't work and acts strange so I have to disable it with sudo modprobe -r psmouse every time I boot into Ubuntu. But how can I make this change permanently and no need to re-enter ...
0
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1answer
149 views

I can't upgrade kernel on Ubuntu Server 14.04.1

today I made a mistake and now I don't know how can I fix it. I updated the kernel using dist-upgrade and I installed Linux 3.13.0-39-generic on my server. I had Linux 3.13.0-37-generic. The thing ...
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votes
2answers
190 views

how to install Longene linux unified kernel?

I heard that Longene Linux unified kernel (Sourceforge link) (GibHub link) will help me install windows apps and some people say it performs better than regular Wine. I need to use windows apps on my ...
2
votes
1answer
2k views

AMD Catalyst Drivers 14.9 needs kernel-headers on 14.10, altough it is missing a version for Utopic

Within the release of Ubuntu 14.10 Utopic Unicorn I've decided to upgrade for it, in hope of better support to my graphics card from AMD, because in the release notes of both Catalyst and Ubuntu it ...
0
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0answers
84 views

LVM VG is not activated during system boot

Since upgrade from Ubuntu 14.04 to 14.10, one of my VGs doesn't come online when the system boots up, and unfortunately, this VG has my root FS, thus I'm dropped to the initrd BusyBox prompt. ...
1
vote
1answer
697 views

How to make it wokr dvb-t usb a867 on kernel 3.13.3

I have kernel 3.13.3 and dvb-t usb tuner a867 based on chip af9035. What can I do to make this tuner work on kernel 3.13.3? I found original driver on website avermedia but no luck with compile on ...
1
vote
1answer
19 views

How to build a separate kernel in the home directory

I'm a linux newbie. How does one build a separate kernel on the home directory other than the usual /usr/src/linux location. Is it possible to do so? Can someone elaborate the steps?
0
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0answers
21 views

Compile lightest kernel for ubuntu 14.04 [duplicate]

I want to compile my own kernel for Ubuntu 14.04 64bits and do it the lightest as possible following this criteria: Lightest Kernel only with Visual Interface, no need lan, wlan, sound, etc... With ...
0
votes
1answer
35 views

Crashkernel is still being added by update-grub after removing linux-crashdump

Once I installed linux-crashdump by following this tutorial: https://wiki.ubuntu.com/Kernel/CrashdumpRecipe But I don't need it anymore, so I removed the linux-crashdump, crash, kdump-tools packages. ...
0
votes
2answers
224 views

Unable to download the source code of linux that I am running

On my machine: root@zaidi:/home/uzair# uname -r 3.13.0-35-generic Also: root@zaidi:/usr/src# ls linux-headers-3.11.0-15 linux-headers-3.11.0-23-generic linux-headers-3.11.0-15-generic ...
12
votes
1answer
16k views

Why won't USB 3.0 external hard drive run at USB 3.0 speeds?

I recently purchased a PCI Express x1 USB 3.0 controller card (containing the NEC USB 3.0 controller) with the intent of using a USB 3.0 external hard drive with my Linux box. I installed the card in ...
0
votes
1answer
414 views

AMD legacy driver installation failed due to missing kernel headers

I am trying to install amd-driver-installer-catalyst-13.1-legacy-linux-x86.x86_64 on Ubuntu 14.04, and failing due missing /lib/modules/3.13.0-37-generic/build/include/linux/version.h. I tried to ...
0
votes
1answer
52 views

How to load a different version of linux kernel?

I am currently using ubuntu 14.04 with the kernel 3.13.0-37-generic, I want to try booting from another kernel 3.17.01 (latest stable release). I have downloaded and built the 3.17.01 kernel from ...
0
votes
1answer
28 views

sporadically i get kernel panics Ubuntu 14.04 64 bit on my samsung

I have a samsung 7 chronos laptop with Ubuntu 14.04 64 bit. every so often just out of the blue it'll crash and I get a "kernel panic - not syncing; Fatal exception in interrupt" I have noticed that ...
0
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2answers
115 views

Software updater reverting to previous kernel version

I have Ubuntu 14.04 LTS and I have updated it to the latest stable Ubuntu kernel: Linux version 3.17.1-031701-generic (apw@gomeisa) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201410150735 ...
0
votes
1answer
156 views

Dell XPS 13 9333, touchpad not working with kernel 3.16 in Utopic Unicorn

So I upgraded today my distribution, from 14.04 Trusty Thar to 14.10 Utopic Unicorn. I had issues with the touchpad on 14.04 (jumping cursor while typing stuff) and the Synaptics upstream driver ...
0
votes
0answers
95 views

How to install usbserial and ftdi_sio modules to 14.04 Trusty Vagrant box?

I started a Vagrant box from https://cloud-images.ubuntu.com/vagrant/trusty/current/trusty-server-cloudimg-i386-vagrant-disk1.box. For some reason, this box does not seem to include usbserial and ...
0
votes
1answer
237 views

Kubuntu 14.10 kernel panic

I downloaded and burned the Kubuntu 14.10 amd64 iso. My laptop was running Kubuntu 14.04 amd64; it is a 4-year-old Dell Studio 17. When booting from the DVD, there is a kernel panic, unable to mount ...
0
votes
2answers
47 views

ubuntu 12.04 often getting freeze

I am using linux ubuntu 12.04 since last 10 months. Now a days my system getting freeze often. I can not work frequently even for 10 mins. My system config: Ubuntu Release 12.04 (precise) 32-bit ...
0
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1answer
111 views

Make boot partition using GParted in Boot-Repair [closed]

How do I create a BIOS boot partition with GParted? I am using Boot-Repair.
0
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0answers
85 views

Kernel panic error while installing Minimal CD

I recently created a bootable USB of Ubuntu 14.04 Minimal CD using the disk destroyer. When I boot, I have the options - Install, Advanced Install, Command Line Install & Help. Clicking on any of ...