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

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Any Patches Available for Ubuntu 14.04?

I have tested Ubuntu 14.04 and Xubuntu 14.04 and in both cases I had issues with installing the latest nvidia driver from nvidia.com and also with being able to perform a scheduled shutdown using a ...
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5 views

Lubuntu flash crashing both on Chrome and Firefox after kernel update

first thanks a lot to user Saur.K. who wrote this tutorial: Ubuntu freezes frequently giving error : GEN6_RP_INTERRUPT_LIMITS after following it I successfuly updated kernel from 3.2 to 3.8.0.39. But ...
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12 views

Help understanding initial init script to create root fs in ram

I'm trying to get a handle on the init process in Linux & Ubuntu so that I can create a small netbootable image that runs in memory (no local disk) What I have managed to do is debootsrap a ...
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2answers
21 views

Adding module to boot module list

What is the exact command for adding b43 module to the startup module list? I have tried adding b43 to the end of /etc/modules and receive a message of access denied. In order to have wireless turn ...
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13 views

btrFS RAID5/6 Understanding space usage and usability

Im currently thinking about experimenting with btrfs with my workload in place of ext4. Right now I have a few drives on order. I want to setup btrfs on the first drive and slowly expand the FS ...
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16 views

kernel panic due to IO error

I updated ubuntu & some how the HDD seems to have broken. I am now getting a Kernel panic with error "{ 7DRDY ERR }". I googled this & came to conclusion that I need to reinstall the OS. So, ...
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75 views

Kernel Panic, ubuntu 14.04 LTS [on hold]

I have just installed ubuntu 14.04 LTS 64 bit version in my laptop. After finishing laptop i rebooted my pc and seen a message saying "kernel panic" and something related to init which i don't ...
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8 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 ...
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12 views

how to trigger for some action on package upgrade?

I've got some problems. I have vga passthrough setup on my desktop. And I had to apply some patches to kernel and Nvidia driver. Now I've got custom patched kernel installed and patched nvidia driver. ...
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39 views

How do I know if the kernel was build with CONFIG_MODVERSIONS?

I am running Ubuntu: #lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04.4 LTS Release: 12.04 Codename: precise## Heading ## And: Kernel info: ...
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1answer
33 views

Ubuntu 14.04 Call Trace

I am seeing a Call Trace in kern.log - system will shutdown cleanly Apr 14 20:58:00 kernel: [ 4742.743373] WARNING: CPU: 0 PID: 26176 at ...
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23 views

Upgrading to 14.04 didn't update my kernel [duplicate]

I've updated my Ubuntu version from 13.10 to 14.04 last week using the update-manager. However, my kernel version did not update: $ uname -r 3.11.0-12-generic $ lsb_release -a No LSB modules are ...
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18 views

Kernel headers update makes VirtualBox ubuntu not responding

Recently I updated my kernel headers on Xubuntu VirtualBox and now system after booting it is totally frozen :-/. I have installed DKMS, VritualBox-DKMS but it did not fix it. I can use system only if ...
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17 views

Issue in building a new kernel in ubuntu 13.04, upgrading from 3.8.0.35 to 3.9 [on hold]

I am getting the following error after running make while upgrading my kernel 3.8.0.35 to new kernel 3.9: sdp@sdp-Dell-System-Vostro-3450:/usr/src/linux_latest_dev_src_tree/linux-git$ make make[1]: ...
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1answer
11 views

How to patch rt kernel in ubuntu 13.10?

I have followed the steps given in the below link... How can I install a realtime kernel? .......after installing the kernel, system is not rebooting automatically. Need help.
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2answers
73 views

On 14.04, my kernel version is 3.11.0-18?

After upgrading to 14.04, my kernel is not upgraded! it's like before: Linux Boxi 3.11.0-18-generic #32-Ubuntu SMP Tue Feb 18 21:11:14 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Here's what I did: ...
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1answer
69 views

3.13.0-24 Kernel and NVIDIA Drivers

I recently installed Ubuntu 14.04 and I installed Nvidia drivers from additional software. Everything was working fine. After a few days an update notifier came out to install kernel 3.13.0-24 (and ...
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4 views

How to create a task manager that runs on kernel?

I am a CS student and I am currently studying operating systems, my project is to create a task manager similar to windows task manager, but the problem is I don't know where to start. I have ...
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33 views

how does my heating issue in dell inspiron stopped?

I have installed the all new Ubuntu 14.04 (Trusty Tahr). And I am way to happy. I used work on Linux but I was literally irritated because my Dell Inspiron used to heat up really badly. initially I ...
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81 views

3.11.0-20 vs 3.13.0-24 ubuntu 14.04

I've upgraded from 13.10 ubuntu to 14.04 and if I run with kernel 3.13.0-24 it is slow/laggy and after a while i get screen glitches and shortly after that whole pc freezes. If I choose instead ...
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7 views

About Removing apt-cache and old kernels in Ubuntu 14.04 [duplicate]

I have upgraded ubuntu to 14.04 today, but in 14.04 ubuntu-tweak is not supported, I dont know how can i remove old kernels and apt-cache files Please anyone help me by sending command-line for ...
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141 views

12.04 LTS to 14.04 LTS Update error

Last night I updated my home server from 12.04 LTS to 14.04 LTS. After the update process, I rebooted the server and now it goes into Kernel Panic during boot. This happens even if I boot into ...
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1answer
91 views

Lubuntu 14.04 cannot try Lubuntu without installing-error messages

I have Lubuntu 13.10 installed. Works great. I downloaded Lubuntu 14.04 and burned to disc. To test I tried the option to try Lubuntu without installing. I got several error messages which I did not ...
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1answer
33 views

Good kernel for 2003 laptop [on hold]

I'm loading Ubuntu 14.04 onto a computer that is pretty old. The laptop is a TOSHIBA Satellite A10-S169 and I'm pretty sure it was manufactured in 2003. I'm very new to Linux but I heard that older ...
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21 views

Kernel Panic not syncing fatal exception in interrupt

I have Ubuntu installed on 2 of my computers and one of them has been acting up. First it started as the screen randomly freezing and I would have to restart to fix it, then just now it goes to a ...
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13 views

error while configuring new kernel?

I'm trying to configure a new kernel and installing modules but I always get this problem /lib/modules/3.14.1/kernel/fs/f2fs/f2fs.ko~ at /usr/src/linux-3.14.1/scripts/sign-file line 417. make[1]: * ...
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1answer
79 views

Wrong kernel after upgrade — old kernel still installed?

I just upgraded from 13.10 to 14.04, but when I do uname -r, it says I have kernel 3.11. I want to have the default 14.04 kernel, (3.13 I believe). How can I get this?
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1answer
6 views

GRUB and Kernel

I have a simple but important question for my case: Does upgrading the Grub mean upgrading the kernel ?
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0answers
23 views

RAM size problem with Ubuntu 11.04 [closed]

On my computer I have 8 GB of RAM. I installed Ubuntu 11.04 on it(the only operating system I use on this computer). When I run free -m, I guess it displays only 3.6 GB. Why this happened and how ...
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50 views

Could someone give me the overview for adding to the kernel?

I've built my own kernels in Gentoo before so I'm no novice. I just did the dist-upgrade for xubuntu to 14.04 but alas the new kernel image wont support my Wireless NIC. Thank Goodness I still had ...
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15 views

Ubuntu 12.04, loading i801 I2C driver

I have a device connected to the following bus (I will discuss it once I explain what I'm trying to achieve), and I'm trying to debug the driver itself (generally it was working for earlier ...
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32 views

do-release-upgrade: Failed to configure linux-image-generic (previous on backports kernel)

Because of hardware issues I was on backports-3.11-rc3-1 with Ubuntu 13.4 64bit. Now, after a while I initialized do-release-upgrade. The process stopped with the message that the configuration of ...
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1answer
24 views

Kernel security settings

What is the right security setting for the net.ipv4.conf.all.secure_redirects option in sysctl.conf? Here it sets to 1 and Here sets to 0. Is net.ipv4.conf.default.secure_redirects related to ...
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36 views

Ubuntu server 12.04 made into squashfs (toram) and frequent start-up kernel panics

I've got a Ubuntu server 12.04 64-bit packed into squashfs and booting into RAM using toram option. When I reboot the machine I get a kernel panic 3 out of 5 times, sometimes multiple times in row, ...
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10 views

Recompiling the kernel after modifying the “irq.c” Module

I modified the irq.c file in the kernel by including several printk() statements to trace some values that I wanted to recovered. Logically, after modifying the irq.c file I attempted to recompile the ...
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1answer
22 views

Finding the path of Kernel source code

I have the following situation. Let's say, I have 3 kernel images installed in my system. But currently, image 3.0.0-generic is running. And the source code for all three kernels are located at ...
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32 views

Problem installing Lubuntu 13.10 [Kernel Panic]

Hello ~ I've had trouble installing Lubuntu 13.10 [64bit] from a usb drive. [I used Universal USB installer] I boot from a usb drive, menu loads up and I can pick with arrow keys - but then as soon ...
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2answers
106 views
+50

Why does my computer (almost) randomly power off? (GPU Kernel Panics?)

I've always had a problem running any sort of Linux distro on my machine. I'm a gamer and tend to spend most of my time in Windows and I have never had any issues when it comes to stability of my PC, ...
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161 views

Cant boot from kernel 3.13.0.24 [closed]

Hi yesterday while updating 14.04 using the update manager I saw Kernel 3.13.0.24 getting downloaded so after the update process completed I rebooted but found that the kernel is stuck at version ...
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0answers
11 views

Dell XPS 13 kernel issue

I've bought Dell XPS 13 9333 and I've upgrade to latest ubuntu 13.10. Then I've realize on book my machine can't never end it's task. It's just freeze after some time on booking screen (Ubuntu image ...
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30 views

special parameter xforcevesa to the kernel

is possible to know how works the special parameter "xforcevesa" when is added to kernel? how init-scripts can use vesa driver when X start ? this is for educational purposes
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36 views

LinuxTV PCTV DVB-S2 461e not recognised

I have a problem with PCTV DVB-S2 Stick (461e). I am running Ubuntu 12.04 and have installed linuxtv using: git clone git://linuxtv.org/media_build.git cd media_build ./build ...
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0answers
14 views

cannot Install VMware 4.0.6

I'm using the Ubuntu 3.11.0-19-generic kernel . I'm trying to install vmware player 4.0.6 while installing i'm getting this error message "Unable to start services. See log file ...
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106 views

The path “” is not a valid path to the 3.11.0-19-generic kernel headers

I'm installing vmware tools and am getting this message. I tried "sudo apt-get install linux-headers-generic" which was suggested in another post but it did not help. What needs to be done so that the ...
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1answer
39 views

Command to find how much data was transferred from USB

How can I create a cron job that runs every minute and logs how much data was transferred by USB? Ideally I want log of amount the data in bytes transfers done. For example if i tranferred 4mb file ...
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1answer
16 views

Can i recompile kernel in dualboot environment?

I need to fix a value hid-ids.h and compile kernel so that my device will work. But i'm on dualboot with windows 8. If this goes wrong can it damage grub or will this just affect my ubuntu ...
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1answer
21 views

Installing non-pae ubuntu from USB-stick without network

there! I have to install ubuntu on my old laptop(IBM thinkpad T42). When I was trying to install normal desktop version, it said that you must have non-pae kernel version. After that I downloaded ...
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How to fully encryped ubuntu on the Beaglebone Black

... or at least access LUKS partitions from a unencrypted system. In the past my BBB crashed during file copying on encryted SDHC that actually did mount. In the later versions from ...
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0answers
21 views

modprobe foo_driver not found

i need to change my usb device product ID to make it work properly without recompiling kernel.. Using 13.10. But the command 'modprobe foo_driver' gives me 'FATAL: Module foo_driver not found.' What's ...
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0answers
73 views

error installing linux-image-3.11.0-19-generic: “kernel does not support non-PAE CPU” although CPU has PAE

I am running Ubuntu 12.04 Kernel 3.11.0-15-generic on my IBM T42 which has a Pentium M 1,7GHz Processor which has 32bit physical adress extension (PAE). Now I cannot install latest security updates ...