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

learn more… | top users | synonyms (4)

4
votes
0answers
755 views

Is there a guide for using GRSecurity and Precisew/ PAX?

I'd like to know if there is a guide of some kind for (successfully) configuring, compiling and installing GRSecurity w/PAX etc. in Precise? I basically am trying to build my own custom release ...
3
votes
0answers
379 views

14.04 - USB microphone speaker device not working anymore

I own a PJP-20UR web conference microphone speaker, I have been using this USB device for ages with Linux, Windows, Mac never ever have had any issues with it. Since I upgraded from Ubuntu ...
3
votes
0answers
544 views

make [1] leaving directory error

When I run make command for patching CRCN on ns2 under Ubuntu 12.04, I am faced with this error: make[1]: Entering directory `/home/apadana/ns-allinone-2.31/ns-2.31/indep-utils/cmu-scen-gen/setdest' ...
3
votes
0answers
188 views

Cannot find classmap.h

When i execute: make modules i get the error: make[1]: Nothing to be done for `all'. make[1]: Nothing to be done for `relocs'. CHK include/generated/uapi/linux/version.h CHK ...
3
votes
0answers
717 views

unable to generate .deb file using make deb-pkg?

I am trying to build my linux source tree. I used following steps : sudo make clean sudo make localmodconfig sudo make menuconfig sudo make deb-pkg But after completion I was not able to see any ...
3
votes
0answers
238 views

Ambient light sensor support

I have a 2010 Sony Vaio laptop running Ubuntu 12.10, with an ambient light sensor installed to adjust screen brightness automatically. However, last time I checked, this was not supported by default ...
3
votes
0answers
623 views

Kernel panic on Lenovo ThinkPad W510 Ubuntu 10.10

When I leave my Lenovo ThinkPad W510 laptop unattended it locks the screen as it is supposed to do. But when I come back I usually find the kernel panic going on on the laptop: the Caps Lock light is ...
2
votes
0answers
39 views

New to Ubuntu, Kernel question

I'm new to Ubuntu and I'm using 14.10. I have a Rosewill Wireless card, n600PCE, and it's giving me a driver for Linux Kernel 2.4 or 2.6. As I am new, these will work, right? It's not like trying to ...
2
votes
0answers
44 views

kernel panic on boot

I'm having some trouble booting ubuntu 14.04. The most weird thing is that after the kernel panic error shows up, if I restart the laptop, grub appears (not showing up when the panic occurred), and ...
2
votes
0answers
254 views

Encrypted disk kernel warning - initramfs image won't boot

After an upgrade to 14.10 on my netbook, I can only manage to boot with the old kernel remaining from the previous 14.04 installation. For the most recent kernels, I get this warning when they are ...
2
votes
0answers
165 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", ...
2
votes
0answers
83 views

Which software ppa to use after applying LTS Enablement Stacks

I have applied the LTS Enablement Stacks on Ubuntu 12.04 LTS I am now running 12.04.5 with kernel 3.13.0.36 (so I guess these are the same Kernel than those currently on 14.04 LTS?). In my list of ...
2
votes
0answers
61 views

How do I resolve a kernel panic without reinstalling?

I forgot to make a backup and it would take forever to reinstall and get it to a point I could use even if I were to copy over the home folder. I recently got a kernel panic with the message ...
2
votes
0answers
102 views

Unable to boot after update

After a update, Ubuntu won't boot anymore and gives: error: could not read file. If I'm fast enough to press a button to continue, I get Kernel panic - not syncing: VFS: Unable to mount root fs on ...
2
votes
0answers
57 views

How to safely update software with a non-standard kernel?

Background I have an Asus UX302LA laptop running Ubuntu 14.04. As the default kernel mainline (3.13.*) is incompatible with the GeForce graphics card it ships with I switched to to a ...
2
votes
0answers
99 views

How to disable Lazy Preempt in kernel

I'm relatively new to Linux and working on getting a real-time kernel up and running for robot applications. I'm on Ubuntu 14.04, using kernel 3.14.3 and the 3.14.3-rt5 real-time patch. Also using ...
2
votes
0answers
548 views

Wireless Dropping Out Using Intel 7260AC Card (Deauthenticated - Reason 7)

I have recently bought a new laptop and it has an Intel 7260AC wireless card in it. I am getting regular wireless dropouts occurring at no specific interval. AFAIK this only occurs at my house. ...
2
votes
0answers
536 views

After installing a new Kernel in Ubuntu 14.04, rebooting takes me to busybox initramfs. How do I mount a filesystem after that?

I have a virtual machine with Ubuntu 14.04 in it. I recently built and installed linux-3.14.5 kernel on it, and tried to boot into it, but it drops me to BusyBox v1.21.1 built-in shell. Here's what I ...
2
votes
0answers
77 views

Black screen after upgrade 12.10 now a very simple question

SO HERE IS MY QUESTION: What can I do to prevent this from happening next time I upgrade Ubuntu to another version? Here is a long involved saga of reinstalling nvidia drivers resulting in a happy ...
2
votes
0answers
140 views

Is it possible to compile a kernel module under chroot?

Under a chroot environment, is it possible to build a kernel module without having the kernel installed, just the headers? It sounds like something you wouldn't want to do, but in my case I do. I've ...
2
votes
0answers
31 views

Boot error for newly compiled kernel in Ubuntu

When I am booting into the newly compiled kernel it is showing error. Following image shows where the booting stopped.
2
votes
0answers
214 views

What is the current status of the x32 ABI implementation in Ubuntu as of 14.04?

The 14.04 release notes contain the following sentence: X32 ABI support (64-bit mode with 32-bit pointers) was also introduced. I think this deserves a bit more explanation. When you use a ...
2
votes
0answers
57 views

Not able to boot ubuntu after windows drive format

I formatted one of the partitions of my Windows 8 drive after which my Ubuntu is not booting. I am using a dual boot system with Ubuntu 12.04 release. On booting, grub menu is displayed properly. ...
2
votes
0answers
181 views

Module acpi not found

My OS is 12.04, I'm not able to suspend and wake up my PC at given time, or better if I run sudo rtcwake -m mem -s 120 My PC enter suspend mode and the power-on light turns up after 2 minutes, but ...
2
votes
0answers
442 views

Propietary Nvidia driver kernel initialization error

Brief summary: I installed Nvidia proprietary drivers and at boot I see the splash screen and then it drops to the command line login screen. Details: I am running Kubuntu 13.10 and wanted to install ...
2
votes
0answers
386 views

lshw and lspci cannot find ethernet device

I have an ASUS H87M-PLUS motherboard. This board comes (according to manual) with a Realtek 8111G ethernet device. In the BIOS, the ethernet device is enabled. Yet, linux does not find a single ...
2
votes
0answers
248 views

Apple aluminium keyboard hub is supplied to little power

I have an Apple aluminium keyboard with an integrated hub. On Mac OS X, I'm able to connect both my mouse and a USB pen drive while on Linux, the power limit is exceeded when connecting more than one ...
2
votes
0answers
97 views

t902: Additional buttons - how to use them?

I have a Fujitsu T902 and have several problems. I guess I'll split them up into different questions. I have installed 13.10 Ubuntu, uname -a tells me: 3.11.0-13-generic #20-Ubuntu SMP Wed Oct 23 ...
2
votes
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 ...
2
votes
0answers
516 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 ...
2
votes
0answers
201 views

Kernel fails to build Broadcomm dkms modules, how to fix it?

My computer is not recognising the wireless network. When I try to activate my drivers I get errors. I tried to solve by: sudo apt-get remove bcmwl-kernel-source sudo apt-get install ...
2
votes
0answers
282 views

Why aren't my changes to /etc/security/limits.conf having effect?

I am trying to provide support for core dumps on my Ubuntu machine (as by default they are disabled). So I have made the following changes to /etc/security/limits.conf: root hard core 1000 After ...
2
votes
0answers
365 views

Ubuntu 13.04 does not boot after update

as a complete newbie to Linux, I just installed a brand new Lenovo ThinkPad X230 with Ubuntu 13.04 from USB stick. Downloaded the installer from ubuntu.com and put it on a stick. No issues. Next day ...
2
votes
0answers
1k views

Linux headers upgrade error

I got this error (quoted below) when upgrading from 12.10 to 13.04. Should I be worried(since I can detect my flaws in my instalation) but I get this at any new linux-header upgrade I do. What does it ...
2
votes
0answers
1k views

gcc does no come up with new upgraded Kernel

After I figuerd out my ubuntu 12.10 amd64 with 3.5.X Kernel does not fill some queuing, and they've fixed that in kernel 3.8.x, I upgraded the kernel of my Ubuntu to v3.10-saucy with installing deb ...
2
votes
0answers
561 views

Ubuntu 12.04 with 2.6.38 kernel

Can I install vanilla kernel 2.6.38 on Ubuntu 12.04?!? I tried installing it and booted 2.6.38 instead of default kernel but it never boots up. All I need to know is can I install 2.6 kernel on ...
2
votes
0answers
487 views

How to repair deleted modules?

During a disk analyzer session to clean up space, I saw that /lib was taking up a ton of space, and I have never before seen this taking up this much space before in Disk Analyzer. The thing is, I ...
2
votes
0answers
320 views

Need help to find/install up to date ATI drivers for kernel 3.5+

GPU: Radeon HD 5450 Distro: Ubuntu 12.10 Attempting to go to the AMD website and filling out the relevant information gives me this, however these drivers are incompatible with kernel 3.7 and when ...
2
votes
0answers
364 views

No filesystem could mount root

I am trying to boot a linux kernel 3.7.0 on virtualbox and it keeps telling me the same message: "No filesystem could mount root tried ext3 ext4 vfat fusebk". I put append root=/dev/sda in my isolinux ...
2
votes
0answers
150 views

LiveCD Boot Failer comm: Swapper/0 cant mount VFS

Kind of a noob but anyway... I'm trying to boot Ubuntu 12.10 livecd. I currently have Windows 7 x64 installed. I start computer to boot Ubuntu livecd and I get kernel panic. Something like: cannot ...
2
votes
0answers
233 views

Ubuntu 12.10 not properply working on Asus u46E after Update

I recently installed the latest Ubuntu update on my laptop and since then, the alignment on the browser is messed up, the mouse is not working, and I can't connect to the internet. Before it was ...
2
votes
0answers
114 views

Which logs will tell me about the Touchpad and Keyboard locking up?

I have an Asus N53SM laptop that I leave running for several weeks at a time. I never put it in hibernate or suspend, I only close the lid when I'm not using it. After a few days or weeks of running, ...
2
votes
0answers
650 views

Why is only one CPU detected on a Macbook with a dual-core processor?

I have a January, 2009 Macbook5,2. It has an Intel Core 2 Duo 2Ghz processor. Since installing Xubuntu 12.04, it runs very slowly. The CPU gadget in the top panel shows only 1 dark column to the left ...
1
vote
0answers
18 views

System Settings crashes immediately when opened after I installed Ubuntu 14.04

Since I've installed Ubuntu 14.04, System Settings refused to open. If I click on it, the mouse just turns into the loading symbol like it's trying to start up, then it crashes, telling me that Ubuntu ...
1
vote
0answers
35 views

USB Device Issues - ongoing enumeration

Since I want to run a custom driver I have a custom Kernel running (3.13.11). Recently I tried to build the 3.18 series. Since I failed to find the Ubuntu patches I build a vanilla version. I tried ...
1
vote
0answers
11 views

Kubuntu cannot start, I'm thrown into busybox

What I did Changed the HD from my previous sony lap to a Lenovo P580, added the Windows drivers required and that worked, I did not check Kubuntu at this time but Grub2 was working. Several months ...
1
vote
0answers
42 views

How to prevent kernel or any broadcast messages from flooding the TTYs?

Is there a way to stop the ttys from being flooded by the kernel messages? The display shows a continuous stream of messages (which are also logged in the /var/log directory). Every text I key in ...
1
vote
0answers
58 views

How do I load a module that has no signature in ubuntu 12.04?

I've got a custom module for a Mightex camera that has been tested for ubuntu 12.04 which I'm using. I have installed it however something is not working. I think it has to do with this dmesg output: ...
1
vote
0answers
33 views

latest kernel killed my ThinkPad W520 hotkeys

for some reason after latest kernel/nvidia and other updates on my 12.04.5 LTS running kernel Linux ThinkPad-W520 3.13.0-43-generic #72~precise1-Ubuntu SMP Tue Dec 9 12:14:18 UTC 2014 x86_64 x86_64 ...
1
vote
0answers
75 views

Periodic lockups showing kernel: [154858.820009] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed… render ring idle

System is Ubuntu 14.04.1 LTS with kernel 3.13.0-43-generic, I have noticed the lockups periodically since 09/13/2014. I can't remember what kernel version was in use then possibly kernel ...