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

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Cannot upgrade Ubuntu 14.04.02 due to kernel package problem

I am experiencing a problem with 3.13.0.57 kernel. After the upgrade the system was not able to boot anymore. I booted it with the previous kernel image and tried to remove the broken kernel packages, ...
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1answer
29 views

How can I let the kernel be updated automatically?

I have Xubuntu 14.04 on my computer. The new stable kernel ver 3.16 have been released for a long time. But, the updater cannot install the new kernel automatically. So I had to install it myself. I ...
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1answer
57 views

Kernel Panic when attempting to boot Ubuntu 15.04 CD on older computer

I have an older machine that I would like to install Ubuntu to. When the computer sees the CD and attempts to boot from it, the Ubuntu colour will appear and the accessibility and keyboard icons will ...
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1answer
40 views

How to find the built-in bluetooth adapter in Toshiba satellite c55-896 laptop

I have been using Ubuntu for over a year, but recently I have encountered an old problem again. When I First installed Ubuntu, it said 'No adapter found' in the Bluetooth section. I want to buy a ...
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1answer
292 views

Unable to compile Broadcom wireless driver on kernel 4.x update

I can not manage to get the wifi works when updating my kernel to 4.x. During the installation, the Broadcom wireless driver failed to compile. I am getting this error : Error! The dkms.conf for ...
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13 views

Setup cross-compile env. in eclipse for Kernel API

I'm cross compiling for a beaglebone black (that is running debian) on ubuntu and I want to make Kernel API calls from module.h, kmod.h, or firmware.h and those don't appear to be in the ...
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18 views

ubuntu 12.04 server livecd install with modules that aren't available in the generic header

I'm trying to install ubuntu on a device with SAS drives. For this to work I need the kernel module mpt3sas. I would need this module to be loaded on startup or do it manually(modprobe) However, it ...
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23 views

modprobe mpt3sas not found in ubuntu installation but should be

I'm trying to install ubuntu server 12.04.4 LTS on SAS drives. I'm booting the installation off of a live install usb. The problem is that ubuntu cannot detect any of these SAS drives. The proper ...
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1answer
51 views

update, dpgk broken

I just upgraded to 14.04 now when I try to upgrade I get: Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to ...
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1answer
45 views

modprobe loads incorrect directory, or maybe it's depmod generating the wrong directory path? Linux can't locate modules.dep either way!

On a fresh install of Ubuntu 12.04 (disc check and md5sums all OK) I get this error on startup, which renders the mouse and keyboard non-functional after booting from grub; modprobe: FATAL: Could ...
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45 views

Ubuntu 15.04/kernel 4.0.1, tpm error (7) occured

I have installed Ubuntu 15.04. Once I had installed all updates, I ran into this error: [ 4.124110] tpm_tis 00:00: A TPM error (7) occurred attempting to read a pcr (I took a picture but it blurs the ...
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1answer
81 views

14.04.2 cannot update, kernel problems? [closed]

Logged into my server the other day for general maintenance and apt-get is unable to perform any updates. Have tried what apt-get itself recommended but I'm still stuck. I've looked around the web ...
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0answers
17 views

Is it possible to customize the kernel when customizing a Live CD?

I am customizing Ubuntu Live by following this answer in order to obtain my preferred ISO. This method is fine, and I have made it work with Ubuntu, Xubuntu, v12, v14, and even Kali Linux. But it ...
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0answers
19 views

failed to sudo update-initramfs -u -k 4.2.0

update 1 https://drive.google.com/file/d/0B2PgRKgeBo5ZbUpnQ0ZVdExpdkU/view?usp=sharing after compile kernel and make install and can not boot , due to error VFS, can not mount fs then try sudo ...
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33 views

Ubuntu 14.10 - cannot install updates cos boot is too small

I've just about searched and tried everything now: Ubuntu tweak, sudo apt-get purge linux-image-x.xx.0.xx after checking my current version using uname -r (linux-image-3.13.0.55). I don't want to ...
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2answers
109 views

Kernel upgrade breaks NVIDIA. Am I stuck with the same kernel forever?

I switched to Ubuntu ~3 months ago and it is an incredible way to interact with a computer. I ran into a snag last night after a restart. I fixed the issue, but it left me with some questions. ...
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3answers
261 views

Cannot apt upgrade due to kernel package problems

an Ubuntu 14.04 LTS user here. Basically I had a problem when running sudo apt-get update sudo apt-get upgrade An error code was returned by dpkg because the Linux kernel package 3.13.0.57 was ...
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0answers
19 views

opcontrol command not found and which part of code in kernel code running the top 10 most frequently and top 10 most time consuming [closed]

how to do profiling for linux kernel? how to search which part of code in kernel code running the top 10 most frequently and top 10 most time consuming? i search oprofile, how to use them to show? ...
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0answers
14 views

Ubuntu 15,04 installation

I downloaded ubuntu 15.04 desktop for acer emachines e627. Now made a bootable usb drive out of it using Universal USB Installer. Rebooted and selected flash drive as boot priortized option too. I am ...
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1answer
23 views

Kernel compilation questions

I am compiling the kernel, purely as a learning exercise. Its good fun and I get a kick out of this type of thing. I have a few questions regarding kernel compilation. Can I always compile the ...
2
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1answer
85 views

VirtualBox error kernel headers

I'm with Ubuntu 15.04 and I'm trying to create an emulator (genymotion), but when run virtualbox, i got the error: Stopping VirtualBox kernel modules ...done. Uninstalling old VirtualBox DKMS ...
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0answers
90 views

Apt-get & software updates failure: Unmet dependencies with kernel package, no diskspace?

Using ubuntu 14.04 LTS with GNOME Classic desktop i can't install the latest upgrades. Most important update is ubuntu base linux kernel updates. Error message: Check if you are using third party ...
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0answers
48 views

Why does update-grub run so much?

For no good reason I currently have three versions of the kernel being maintained on my computer (3.13, 3.16 and 3.19). This means when a security fix drips back, I end up with three kernels being ...
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0answers
12 views

Kernel debug symbols for ARM64 Trusty

I have qemu running ARM64 Trusty image that I obtained from the ubuntu website. The image name is ubuntu-core-14.04.1-core-arm64.img. I'm trying to install kernel debug symbols onto the image. ...
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1answer
34 views

4.0.6 kernel in which ubuntu version?

I think kernel 4.0.6 came with l2tp vpn support which is a must for me. (its so in another distro) Is there any xubuntu version that officially supports it or comes with this kernel? I know that there ...
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26 views

Invalid or corrupted kernel image while booting from virtual machine

When I tried to install Ubuntu 14.04.2 LTS on my laptop using vmware , the screen showed "Invalid or corrupted kernel image" at first and later showed "/casper/vmlinuz.efi: not found" .When I searched ...
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37 views

/casper/vmlinuz.efi: not found for ubuntu 14.04.2 LTS

/casper/vmlinuz.efi: not found is the error that is shown when i tried to start ubuntu for using vmware by downloading an .iso file for Ubuntu 14.04.2 LTS. What should I do now ? Also , when I ...
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0answers
32 views

Experiencing kernel panics, freezing and network errors. Please help!

I've had my own home server now for approximately 4,5 years and it's been running fairly smooth except for some disk breakdowns etc. Although, at various times I've been having issues where the server ...
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0answers
36 views

Deleted kernel in Ubuntu

So I was cleaning boot partition and apperently deleted the current kernel alongside the old ones, since after this opertaion I wasn't able to boot any longer. I found some answers to this problem ...
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1answer
38 views

Kernel Not Installing

I followed the exact steps from here and installed MPTCP Kernel on Ubuntu 14.04 on a system. I had to reinstall Ubuntu due to some reasons, the same 14.04 version and now when I follow the steps I ...
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0answers
50 views

Upgrading kernel, Warning message

When I upgraded the kernel to the current version 3.19.0-22-generic I got the following message: Jul 7 13:18:49 ubuntu kernel: [ 717.001387] Jul 7 13:18:49 ubuntu kernel: [ 717.001387] ...
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0answers
18 views

Why does 3rd digit in Ubuntu kernel version not match 3rd digit in its mainline upstream kernel version number?

From the Ubuntu Kernel FAQ ( https://wiki.ubuntu.com/Kernel/FAQ ) : Given an Ubuntu kernel package version how do we find the release it is from? The kernel package version is of the following ...
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0answers
25 views

CPU Governor Not 'Idling' After Kernel Update

Last night, my laptop running Ubuntu 14.04 asked to update the kernel to 3.16.0-43. I noticed this morning that Conky is now reporting that my CPU is running around max all the time now. Before ...
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1answer
26 views

gdb - load kernel module for remote debugging

Ubuntu 14.04 LTS: peter@peterubuntu0:$ insmod mymodule peter@peterubuntu0:/sys/module/mymodule/sections$ cat .text .data .bss 0x0000000000000000 0x0000000000000000 0x0000000000000000 So how do I ...
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2answers
73 views

Can't Login after kernel 3.16 upgrade

I was running 14.04 and everything worked great till I installed Kernel 3.16 with the command sudo apt-get install linux-image-generic-lts-utopic and rebooted. Now I am unable to login. It boots up ...
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0answers
13 views

ping6 works but telnet does not work on Mobile IPv6

I am using mip6d in ubuntu 15.04. I did all steps as mentioned here with kernel 4.0.5. Everything (Mobile Node, Home Agent, Corresponding Node) works perfectly. When mobile node is in foreign ...
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16 views

Best way to cope with kernel upgrade and vmware-tools recompilation race condition

I am automatically creating vmware images based on Ubuntu 14.04 using packer.io. I would like to run apt-get upgrade each time I create a new vmware base box. Yet, upgrading the kernel frequently ...
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1answer
43 views

Panic Error on Boot - Ubuntu 14.4

I recently did an update on my machine and ever since Ubuntu will not boot properly. I get an error message and I have to go into recovery mode in order to start the boot process. I have tried ...
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0answers
18 views

Customizing Ubuntu

I had a question. If I customized Ubuntu and kept some services and looks of Ubuntu then can I call it my own OS without getting into trouble. Also If I make money out of the OS then will I have to ...
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0answers
13 views

send kernel oops to kerneloops.org without kerneloops

Using Ubuntu 15.04, I have switched to use systemd log journal and removed rsyslog package. So I am now a little in unsupported territory. That does not matter to me. Except I got a nasty kernel oops ...
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0answers
49 views

Techwell tw6805a driver for ubuntu 14.04 LTS running 3.13.0-55-generic kernel

I am using ubuntu server 14.04 LTS and have a 16 channel DVR card installed, unfortunately it is a no-name-brand, however I have identified 8 techwell tw8605a chips on the board. I followed the ...
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1answer
59 views

Ubuntu kernel doesn't boot up right

I compiled a Ubuntu 15.04 kernel last night and installed it this morning. It showed up fine in my grub but when I tried to boot it, it booted me to my Ubuntu 14.04 instaed. What is going on? Also, ...
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1answer
27 views

Compatible kernel to build for Ubuntu 12.04.LTS

I have Ubuntu 12.04.02 with kernel 3.13. I wanted to upgrade the kernel to 3.18 using the same Ubuntu 12.04.02. Is there a possibility to breaking something. I want to debug a driver by doing so? ...
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1answer
53 views

Why kernel version doesn't match Ubuntu version in a Docker container?

I have a Docker container built from Ubuntu 14.10. When I log in to the container to check the Ubuntu version and kernel version I see the following: root@~$>> lsb_release -a No LSB modules are ...
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40 views

Kernel Panic after trying to upgrade from 14.04 to 14.10

I have a Dell XPS 13 9343 which came with ubuntu 14.04. I got a notification of an update to .10 and went for it. Once it finished it said it completed with errors. I sudo rebooted and now the OS ...
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1answer
92 views

Nvidia driver does not install

I upgraded kernel of my Ubuntu 14.04 LTS to 4.0.5 and when I try to install video drivers sudo apt-get install nvidia-current nvidia-settings I get this error: Building initial module for ...
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0answers
21 views

Problem booting on the latest kernel (3.16.0-34)

I boot on linux kernel 3.16.0-34 atm. The machine just won't boot on later kernel versions. When I do, i get an error message on the desktop. I assume the reason I can't boot on the latest kernel is ...
0
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1answer
56 views

Unable to update kernel

I kept getting a kernel panic (not syncing. No init found) trying to boot my Ubuntu Server, so I burned the latest version of Ubuntu Server to a CD and booted (used option boot to fist disk) to try ...
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0answers
23 views

How can I allow *any* user to write files `/sys/kernel/debug/…`?

How can I allow any user to write files /sys/kernel/debug/...? While creating a debugfs file, I realized that only root on my ubuntu machine can access the debugfs files in /sys/kernel/debug/..., even ...
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0answers
20 views

Ubuntu Live CD with /dev/nvram available

Is there any way to make /dev/nvram available when running from the Live CD? It says on the manpage for the nvram driver that it has to be compiled into the kernel. Is it possible to do that while ...