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

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26 views

How to unload a kernel module which is in use?

I'm following this tutorial to get my card reader working: http://ubuntuforums.org/showthread.php?t=636867 However I'm unable unload my sdhci module: sudo modprobe -rv sdhci mmc_core mmc_block ...
2
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1answer
105 views

Btrfs subvolume @home not mounted kernel upgrade 3.17

i'm having trouble upgrading my kernel to the latest 3.17 rc3 mainline kernel. I'm currently on a patched kernel 3.13 for my Acer chromebook c720p, the 3.17 kernel would give me support for touchpad ...
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0answers
18 views

Warnings during kernel compiling

I'm compiling custom kernel and during the process I'm getting warnings such as: drivers/isdn/hardware/eicon/message.c:6115:1: warning: the frame size of 1184 bytes is larger than 1024 bytes ...
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2answers
123 views

How to install needed Qt packages to build kernel on 14.04?

I'm going to compile kernel on Ubuntu 14.04 64-bit, so I start with installing packages that I need: sudo apt-get install build-essential bin86 kernel-package libqt3-headers libqt3-mt-dev wget ...
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0answers
137 views

Ubuntu 14.04 kernel update

I have a problem with updating the kernel on ubuntu 14.04, the system detects the updates and the latest version is installed, and unfortunately when I start ubuntu I always find the old version or ...
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1answer
58 views

Which more can I remove from my /boot in order to get space?

I'm using ubuntu (3.13.0-34). I installed it, left 300M for boot, but seems that it was not enough anymore. I follow some instructions here and removed all older kernels from it. /dev/sda6 277M ...
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0answers
27 views

Ubuntu crash. Maybe “mtrr”?

I've a problem with Ubuntu 14.04. It block. The "capslock", and "numlock" doesn't work. I must do a reset (with the button). The mouse don't move anymore. I've desactivate "zram" now. Here a part of ...
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0answers
46 views

Since updating to Ubuntu 14.04 computer crashes every time I load anything higher than linux 3.13.0-26-generic

I recently upgraded from 13.10 to 14.04 LTS. Now if I try and load a linux kernel higher than 3.13.0-26-generic the computer crashes and reboots. I have tried to reinstall 14.04 LTS from CD but this ...
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0answers
20 views

Could you advise which ubuntu kernel git repo contains kernel 3.14.17?

Could you advise which ubuntu kernel git repo contains kernel 3.14.17?
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0answers
11 views

Ubuntu Sony Vaio VPCZ 133

I tried to install Ubuntu 14.04 on my sony vaio vpcz 133. It freezes after login into the system. So I go back and install the 12.04, works great. I'm planning to install the laptop mode tools on it. ...
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0answers
13 views

how to get the uboot log file of pandaboard?

i'm using ubuntu12.04 with 64 bit.I'm doing my project on Pandaboard ES.I flashed the MLO ,U-boot.bin to sdcard.It is working properly. But i want to take the log file for booting sequence.Is there ...
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0answers
48 views

Is it safe to install kernel 3.6 on ubuntu 14.04

This question might sound stupid but pardon me as i'm still new to linux..but i've been having some problems with my Railink RT3290 Wireless driver and i'm running kubuntu 14.04.i've tried so many ...
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0answers
62 views

how ubuntu handles sd card remove from usb card reader

I am looking for some technical information. I have USB SD card reader connected to Ubuntu machine. when i connect sd card to USB card reader, "add" event is triggered and i can see sd card is ...
1
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0answers
22 views

Build identical ubuntu kernel packages

I compile my own patched version of the upstream linux-kernel. Until now I have always used make-kpkg, by running CONCURRENCY_LEVEL=9 fakeroot make-kpkg --initrd --append-to-version=-patched ...
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0answers
96 views

elantech touchpad - multi touch is not working for kernel 3.13.0-35-generic

I recently updated my kernel to 3.13.0-35-generic,after update my elantech touchpad multi touch stopped working I tried fixing it from here ...
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0answers
16 views

How to debug NIC failure?

I'm experiencing failure of an ASIX AX88179 NIC inside a USB 3.0 3 ports hub plugged into USB 3.0 port of a Lenovo IdeaPad Z500. The PC has another NIC which is not used while the failing device is in ...
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2answers
26 views

apt get upgrade third party modules and manually installed packages doubt

I'm wonder what will happen to manually installed packages and kernel modules (third party ones) when doing an sudo apt-get upgrade.
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1answer
40 views

Setting up lubuntu to access /usr/src/linux-headers-3.1.x.xx?

I need to access a block of memory assigned by a FPGA to a PLX chip. Now I dont think that will be to much of a problem accept when I try and use the /include/linux headers they seem to be somewhat ...
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0answers
10 views

Get notified on process close

We have a driver which keeps some objects on a per process basis. These objects need to be cleaned and freed when those processes close. Is there a way to get notified (in a kernel driver) of those ...
0
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1answer
39 views

Clean install of 14.04 gives endless “Wrong Mac address”

I booted my laptop with a USB with Ubuntu 14.04, and verified that 14.04 is working fine, and my internal drive is intact and working. Then I hit install. The install program worked the first couple ...
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0answers
13 views

Can I use my serial receipt printer as an emergency console?

I recently came into possession of a serial receipt printer and I would like to know if I could use it as an emergency print-out console for the following purposes: Kernel Panic (Stack Traces) Any ...
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0answers
15 views

Error While installing Kubuntu 14.04 in Virtual machine

Running Kubuntu 14.04 in Virtual machine Gives me an Error :- Boot : could not found kernel image : vmlinuxz.efi how can solve these ?
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1answer
143 views

BCM4352 offical dell driver installation problem

I've downloaded dell ubuntu 12.04 drivers and un-tar the package. Then enter the approprite folder to install as specified in first and one answer this question. First i've installed it with double ...
1
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2answers
368 views

How do I re-run boot loader?

Running sudo apt-get -f install said that The link /vmlinuz.old is a damaged link and: you may need to re-run your boot loader[grub] Here's the full output: user@chrubuntu:~$ sudo apt-get -f ...
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0answers
44 views

USB device fails to enumerate using xHCI

I'm trying to connect a ARM development board (precisely a Nucleo Board F401RE) through a USB port but, mostly, it fails to enumerate and I get these messages using dmesg [ 4788.675352] hub 3-0:1.0: ...
0
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1answer
67 views

using packagemanager to uninstall latest kernel?

The last update (I updated 9/1/14) to the kernel broke my boot. I was able to boot into the previous kernel. I think the version that was stable was 3.13.0.34.40 and the update was 3.13.0.35.42--Is ...
0
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1answer
56 views

update-grub ignores GRUB_CMDLINE_LINUX in /etc/default/grub when generating menu.lst

I created /etc/default/grub with the contents GRUB_CMDLINE_LINUX="cgroup_enable=memory swapaccount=1". When I run update-grub, I expect these additional arguments to be appended to the kernel lines in ...
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0answers
46 views

How can I load modules from /etc/modules before mounting local file systems?

I have modified /etc/fstab to mount a file system that requires a custom module. On two out of three systems, all running Ubuntu 14.04, I can simply add the module to /etc/modules and it will mount ...
0
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1answer
45 views

Ubuntu 14.04 does not start installation

I'm trying to install Ubuntu 14.04 on a PC with UEFI and windows 8.1 x64. I am using a usb installation, ubuntu starts and show initial purple screen, after I get the following screen And the PC ...
1
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2answers
60 views

Ubuntu Won't Let Me Shutdown

I can use my laptop with out any problem for a while ( sometimes around 12 hours and sometimes just half an hour ), then suddenly one by one, the applications will be closed. I can't shutdown. So I ...
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0answers
29 views

laptop sees two connections when HD TV is plugged, but no image

With Apple Macbook Air 1,1 (Early 2008) and Ubuntu 12.04 with kernel Linux 3.2.0-68-generic-pae, when I connect it to an HD TV via the micro-DVI to DVI (Apple adapter) --> DVI to HDMI (I tried two ...
1
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1answer
78 views

Chromium freezes after resuming from standby (Kubuntu 14.04)

Every time my laptop resumes from standby the Chromium browser becomes frozen. Graphically, it means that it leaves an unresponsive black square on the desktop. Sometimes, but not always it would ...
1
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1answer
147 views

After removing the latest kernel, how can I be notified of kernel updates again?

Yesterday, I updated all packages through the software updater. It installed kernel 3.13.0-35. When I rebooted, I would get a completely unresponsive blank screen, so I went back to the Grub menu ...
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0answers
12 views

How to select WNIC and bluetooth drivers

I'm a completely new and yellow Ubuntu user. I installed it yesterday on a old machine (Acer Aspire 3610). During instalation I had a problem - the process was hanging at "bcmwl-kernel-source". I've ...
1
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1answer
843 views

dpkg: error processing package linux-image-generic (--configure): dependency problems - leaving unconfigured

dpkg --configure -a Setting up linux-image-3.13.0-35-generic (3.13.0-35.62) ... Running depmod. update-initramfs: deferring update (hook will be called later) The link /initrd.img is a dangling ...
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0answers
177 views

3.13.0-35 kernel causing screen fliker

I just upgraded kernel to 3.13.0-35. My laptop screen started to flicker. I had to revert to an older kernel for the time being. Laptop model: TOSHIBA SATELLITE P205D-S7429. AMD X2 CPU Radeon ...
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0answers
93 views

kernel panic occured after installing wifi driver

I have exactly this problem. I retype some of it in case link goes offline. I have notebook lenovo E540. I think I'm using 14.04.1 LTS (didn't check) and kernel 3.13.0-35. My wifi stoped working after ...
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0answers
21 views

linux-image-generic missing - is this a problem?

After removing old and unused kernels from my wife's laptop as per this question: What kernels & packages do I un-install? I thought I'd do the same on my laptop, since I've been running Ubuntu ...
0
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1answer
26 views

what does it mean to load a kernal image?

I came across the following statement .. When booting Linux, the boot loader is responsible for loading the kernel image and the initial RAM disk (which contains some critical files and device ...
0
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1answer
28 views

What kernels & packages do I un-install?

Okay, my wife's computer is apparently running out of space on /boot and from what I can tell in similar questions, it's related to unused kernels (which makes no sense, considering it's a fresh ...
0
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0answers
91 views

Pre requirements missing when installing oracle database 11g Ubuntu

I'm trying to install Oracle Database 11g on Ubuntu 14.04. At the middle of executing ./runInstaller I'm getting following messages saying about missing prerequisites. This is a prerequisite ...
1
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1answer
438 views

How do I fix this error? dkms.conf: Error! No 'BUILT_MODULE_NAME' directive specified for record #0 Error! Bad conf file

I am using Ubuntu 14.04.1 LTS Does anyone know how to fix this Dkms.conf error? dkms.conf: Error! No 'BUILT_MODULE_NAME' directive specified for record #0. Error! Bad conf file. File: does not ...
1
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1answer
419 views

DisplayLink USB 3.0 Not working on Ubuntu 14.04LTS

I noticed this might be yet another DisplayLink outcry - but I thought I give it a go anyway. So the usual story - I have got a DisplayLink adaptor Kensington USB3.0 Video Adapter, and doesn't look ...
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3answers
117 views

List of Ubuntu Versions with Corresponding Linux Kernel Version

Is there a list of Ubuntu versions with default corresponding Linux kernel versions somewhere? I would specifically like to know the most recent version of Ubuntu that still used Linux Kernel 2.x.
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0answers
60 views

kernel module build fails on 14.04: sys/types.h: No such file or directory

I'm unable to build a kernel module in Ubuntu 14.04. This is the make file I use: $ cat Makefile obj-m += my_module.o all: make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules clean: ...
0
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1answer
317 views

Error on installing upstream kernel

I tried to install latest upstream kernel(linux-headers-3.17.0-031700rc2-generic_3.17.0-031700rc2.201408251935_amd64.deb) from here but installation failed with this error: user@user-pc:~$ sudo dpkg ...
0
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1answer
56 views

WiFi interface doesn't come up

All of sudden, my builtin Wifi interface on the laptop (HP Pavilion dv7, running Ubuntu 12.04, kernel 3.2.0-64-generic) won't come up. # ifconfig wlan0 wlan0 Link encap:Ethernet HWaddr ...
1
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1answer
86 views

how to enable hyperZ on radeon hd 5000 series?

I have surfed around the web to enabling hyperZ by adding this parameter R600_DEBUG=hyperz, but where I must put it? Is it at /etc/default/grub ? And what the difference between R600_DEBUG=hyperz ; ...
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0answers
6 views

could not instal nitroid kernel

I try to instal nitdroid on my N900 cellphone and I got this error while installing nitdroid kernel, "creating item file for multiboot /var/lib/dpkg/info/ nitdroid-kernel-2.6.28-07.postinst: line 97: ...
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23 views

beautiful screenblinking with i915

I'm using Ubuntu 14.04 LTS 64bit on a Laptop. The problem is that screen keeps blinking like rainbow. This is what happened on my laptop http://www.youtube.com/watch?v=mOY4RDhi8sY My workaround was ...