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

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Customizing Linux kernel

I want to dive into creating custom linux kernels. I recently started using Ubuntu and I am impressed with the fact that I can customize the kernel to my own likings. I have been developing apps for ...
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73 views

installing 12.04lts wubi in windows 7

After downloading wubi 12.04 LTS and installing on windows 7, the error problem appeared like these: Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100 drm_kms_helper: panic ...
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349 views

How to create Realtek 9182ce driver DKMS module

On Kernel 3.2.0, the build in drivers stopped working arround 3.2.0-40 as reported in bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/902557. I wonder if the kernel change ...
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1answer
267 views

Get my app, having a kernel module, accepted by the review process of the Ubuntu Software Center

I have submitted an app divided in 3 parts: A kernel module A daemon A control panel The first and last parts are free and open source, and packaged in a PPA. The second one is closed source, and ...
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3answers
102 views

Is the Linux kernel required to run Linux?

At the risk of sounding like a complete dumb: is the Linux kernel required to run Linux? I ask because I'm brand spanking new to the Linux scene and Google doesn't help with this question.
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1answer
136 views

how do I find the kerner version in ubuntu 13.04 [duplicate]

I'm trying to find the kernel verion running on my system. I'm running Ubuntu 13.04 with the gnome desktop because a failed ati/amd driver install moofed my unity desktop and I haven't been able to ...
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84 views

ubuntu 64 bit 12.04 lts kernel version 3.2.0-44 install

Because of software support issues, I need to download and install Ubuntu 64 bit 12.04 LTS kernel version 3.2.0-44. I'm an old Unix guy (Sun, HP, etc) who is new to the Linux world so be gentle.
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1answer
3k views

hostapd Failed to update rate sets in kernel module

I'm getting this error launching hostapd with minimal conf Failed to update rate sets in kernel module I've just installed Ubuntu-GNOME 13.04. When I was using Ubuntu 12.04 did not receive this ...
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131 views

Adding Custom System Calls to Recent Linux Kernel Versions?

What is the procedure to add custom system call to linux versions 3.5 and later? I came to know that the procedure has changed from linux-3.5 onwards. Can anyone provide me a link to any tutorial or ...
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1answer
510 views

problem with VirtualBox

I have Ubuntu 13.10 and I installed VirtualBox 4.2.16 on Ubuntu and I want to create a virtual disk but when I create a virtual disk by click on Start button, the error message appears Kernel ...
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1answer
273 views

Why does usblp prevent VMware from accessing my USB printer?

Every time I plug in my USB printer for VMware Workstation 9 to use (Windows 7 guest OS), Ubuntu 13.04 (the host) launches usblp and grabs the printer. VMware then throws up a dialog: The ...
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1answer
2k views

What does the warning about missing firmware mean and how to fix it?

I did a fresh Ubuntu 13.04 x64 install. Right after that, I downloaded and installed the kernel 3.11.3-031103-generic which is running right now. One thing that concerns me is this message: W: ...
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1answer
549 views

VirtualBox Guest extensions with kernel 3.8.0-31 don't work

my Ubuntu 12.04 LTS (running in a VirtualBox on an Windows 7 PC) just updated to kernel 3.8.0-31. After that I tried to install the vitualbox-guest-additions, but this failed with an error, that no ...
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3answers
3k views

How to install 12.04 with kernel 3.2?

A few days ago I reported a strange issue with an old laptop after installing 12.04. I now know this is a problem with the kernel module presently supporting 12.04 (3.8), since with kernel 3.2 the ...
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0answers
80 views

server version 3.8.0-27 is the last kernel I can boot from

[Submitted this query as bug 1237392 on LaunchPad] All kernel updates on ubuntu since kernel 3.8.0-28 result in an empty screen with no indication of startup, no response to the keyboard. I can only ...
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0answers
1k views

Crashing system - how to xhci_hcd unload and only allow ehci_hcd in Ubuntu 12.04, 13.04 for debug some usb hardwares

I have few USB hardware who is using 500mA (5V) power, after reserching found that external power supply or hub was the solution but that was a waste of time, even doing external power the problem ...
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1answer
1k views

Linux kernel upgrade to 3.11.4 in Ubuntu 13.04

I upgraded to kernel 3.11.4 in Ubuntu 13.04 64bit but lost my desktop (no icons, only wallpaper displaying). Removed the upgrade with sudo apt-get purge linux-image-3.11.4 but the desktop problem ...
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1answer
717 views

How do I prevent updates to a new Xorg/fglrx stack when upgrading point releases? [duplicate]

I just installed Ubuntu 12.04.1 because I need the fglrx-legacy driver installed. When I installed Ubuntu 12.04.3 or fully updated 12.04.1, I was unable to install this driver because I found out that ...
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0answers
378 views

Samsung Series 9 Ultrabook (np900x3e) Overheating

I have the June version of the Series 9 from Samsung, and I'm running Saucy Salamander to get the touchpad working correctly. The laptop is overheating though fairly often, and I haven't found any ...
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0answers
118 views

Kernel netfiler module not working as expected

I am developing a kernel module for source port translation using netfilter hooks. The code was tested on Mint 3.8.0-31 and Debian 3.7.2-0 both on same Asus machine. And works exactly as expected. ...
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1answer
66 views

I have a patch for my laptop that needs to be added but I have no idea how to apply it

This is a link to the bug and people say it has been patched but I don't know how to apply the patch. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/529477 The bug is on the HP Dv6 pavilion ...
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4answers
10k views

13.04: Kernel panic - not syncing: No init found

I know this question has been asked several times on this forum, but none of the answers given worked for me. Tonight I did an install of Ubuntu 13.04 on a brand new Acer Aspire laptop. I formatted ...
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1answer
611 views

How do I install the kernel 3-11.2 on Ubuntu 13.04? [duplicate]

I would like to install kernel 3-11.2 on Ubuntu 13.04 (I found this link git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-3.11.y ). How do I manage to do it ?Also, is it ...
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1answer
1k views

Is it possible to boot without adding `pci=nomsi` or `acpi=off` to the grub command line?

I have an ASUS X64SL laptop with Intel Core 2 Duo P8400 CPU. When I want to boot with Linux I have to add to the grub command line either pci=nomsi or acpi=off. Is there another way to boot without ...
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1answer
656 views

Crash - every morning, how to resolve this crash and run it in a stable way?

Every day Ubuntu 12.04 64-bit on my Alienware X51 Dell PC crashes. The kernel I am using is 3.2.0-41-generic. I have a python application running which downloads and uploads in the official hours. ...
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1answer
4k views

Error: Driver 'pcspkr' is already registered, aborting

I had trouble opening the Software Centre in 12.04. I tried the troubleshooting given here. After carrying out the instructions, I rebooted my computer only to find that I can't reach the login ...
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1answer
485 views

Replace wireless driver with modprobe

This question, like many others here, regards the rt2800pci driver with a Realtek 539a adapter on the HP ProBokk 4540 (related bug here). I have followed the steps on many other posts, such as the ...
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1answer
2k views

Lockd Freezes once or more per day

Server has been running for over 1.5 years, with no problem. Last week started receiving errors and workstations freeze: lockd: cannot monitor statd: server rpc.statd not responding, timed out ...
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1answer
281 views

Newly installed kernels won't boot - what am I doing wrong? Ubuntu 13.04

I've been trying to install an updated kernel on my fresh Ubuntu Gnome 13.04 installation, mainly because it purportedly fixes the display brightness issue on my Dell XPS 13 FHD. I'm following the ...
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0answers
81 views

Blending Ubuntu folder and Android kernel to create image for ARM

Does Ubuntu modify the Linux kernel's APIs? Is it possible to use the kernel from Android as it is and copy the Ubuntu folder developed for the ver 3.4.0 and create an Ubuntu image for the ARM ...
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2answers
928 views

Deleted old version of kernel to free up space - now getting nonstop errors

My /boot partition was full, so I deleted an old version of the kernel to free up space, so I deleted the following files in /boot: abi-3.8.0-25-generic config-3.8.0-25-generic ...
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0answers
159 views

KERNEL PANIC VAIO S13 ---Keybord & touchpad not work

I downloaded and saved from the official website ubuntu 12.04 lts, first I tried it on my tower and I tried it smoothly and then install it, today I tried it on my SONY VAIO what I have done has been ...
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0answers
27 views

how to install linux-tools-3.5.0-030500

I installed kernel 3.5 from mainline using the procedure avaliable at http://ubuntuforums.org/showthread.php?p=11391743#post11391743 but when i tried to install perf, its asking for ...
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2answers
501 views

How do I pin the lowlatency kernels so apt doesn't update with a newer generic kernel?

I'm on Kubuntu 12.04 with lts-raring HWE stack. I'm running kernel 3.8.0.30.18 low latency. A recent update replaced my low latency kernel with a slightly newer (3.8.0.31) generic kernel. I wish to ...
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0answers
45 views

Upgrade kills my Wifi,so what are my options?

I have a new HP pavilion laptop. It came pre-installed with 12.04 LTS, when I did an update of my kernel, it killed my Wifi, I couldn't figure out why. HP people are incompetent to provide support on ...
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0answers
568 views

error: file'/boot/grub/x86_64-efi/normal.mod' not found

I get this error: error: file'/boot/grub/x86_64-efi/normal.mod' not found. grub rescue> I am on a ASUS U38DT which came pre-installed with windows 8 and I tried to install Ubuntu 13.04 instead ...
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1answer
2k views

Unable find package linux-header-3.2.46

Linux-header package is not installed. root@pc-4:~# apt-cache policy linux-headers-3.2.46 N: Couldn't find any package by regex 'linux-headers-3.2.46' root@pc-4:~# root@pc-4:~# Unable to install ...
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1answer
229 views

Uninstalled windows, now bootmgr is missing

I enjoyed using Ubuntu for the past few weeks and decided to uninstall Uindows using the "OS-Uninstaller Graphical Tool". Now I get the error bootmgr is missing. When I try to use the DVD from the ...
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0answers
448 views

Installing linux-generic-lts-quantal in 12.04.3 via preseed

I'm struggling with getting this working. The problem is, the backported raring kernel breaks OVS. So we need the quantal kernel. I've tried this in my preseed: d-i ...
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0answers
207 views

Ubuntu 12.04 LTS do not recognize wireless adapter

Trying to connect a PC with Ubuntu 12.04 LTS (kernel 3.8.0-29-generic) with wireless adapter: "WLAN 300N USB 2.0 INTERNET ADAPTER" but the wireless USB adapter is not recognized. It has a CD with ...
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0answers
206 views

USB Ports die randomly

This affects all of my usb ports, back, front. The machine is still working fine. I can ssh into it from a different machine it just wont' take any input from my USB device. I could use the ...
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0answers
89 views

Ubuntu 12.04 with kernel 3.5.0-40 fails to boot

I'm running Ubuntu 12.04 on a Dell E6230 with full disk encryption (not just homedir) as setup by the installer. In order to get the touchpad to be recognised and enable two finger scrolling I ...
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1answer
543 views

Ubuntu 13.04 random crashes

I'm having a problem which seems to get worse as time goes on. I'm having random crashes (image links at the bottom), It used to happen about once a week or so, but now it happens a few times a day. ...
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2answers
970 views

VirtualBox won't start in Ubuntu 13.04

I am trying to run VirtualBox so I can install a copy of Windows XP for school. I can get through setting up a new VM but when I try to start it there's a problem with kernels. Failed to open a ...
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0answers
437 views

Can`t update Ubuntu 12.04LTS headless server via terminal

I previously tried to update to 3.2.0.36-linux-generic but this was broken for some reason so every time I restart my server I have to boot 3.2.0.35-linux-generic. When I try sudo apt-get upgrade I ...
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1answer
730 views

Since August I can't upgrade the kernel any more

I have this weird issue since about 1 month ago. I used to routinely apply dist upgrades with: apt-get update apt-get dist-upgrade but since 1 month ago I get an output similar to this: apt-get ...
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1answer
132 views

Linux kernel didn't start correctly after boot

after my first kompilation of linux-kernel (release 3.11) I copy kernel to /boot folder and then run grub-mkconfig -o /boot/grub/grub.cfg because my system is using grub. Then I saw my kernel in ...
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0answers
516 views

kernel upgradation after effect

I am on 12.04.2 xubuntu and I just upgraded my kernel from 3.2 to 3.11 while still staying with my 12.04.2 version. I did it successfully but the terminal showing that i have some missing plug-ins. ...
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593 views

ACPI Warnings in logs

On Ubuntu 12.04.3 with kernel 3.8 this message appears in the kernel.log and the syslog. Sep 23 12:24:06 laptop-allard kernel: [ 6.988503] ACPI Warning: 0x0000000000000428-0x000000000000042f ...
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2answers
690 views

How do I disable kernel messages while booting?

I enabled the kernel messages a long time ago because I was playing around with Ubuntu. But now I am finished and I want to disable them again, but forgot how to. /etc/default/grub already contains ...