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

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2answers
48 views

Cannot git clone Apparmor kernel patches

Whenever I enter (git clone git://kernel.ubuntu.com/jj/ubuntu-utopic.git) into the terminal, I get this output: Cloning into 'ubuntu-utopic'... fatal: Could not read from remote repository. Please ...
1
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2answers
71 views

Stop apt-get autoremove from removing old kernel?

I like managing kernels my self, and I can't figure how to stop apt-get autoremove from deleting older kernels.
0
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1answer
34 views

scheduler: how to tune cfq to favor interactive processes

Problem: scheduler doesn't seem to favor interactive processes: On a desktop system with automatic cron-scheduled backups from one (btrfs) disk to another (ext4). The backup process mounts the idle ...
0
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0answers
29 views

dkms problem with VirtualBox kernel registration after 15.10 to 16.04 upgrade [duplicate]

After upgrading an Ubuntu GNOME 15.10 machine to 16.04 I have encountered some problems with my VirtualBox and dkms installation. It seems that during the upgrade dkms had some problems registering ...
0
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0answers
33 views

Kernel panic - not syncing: attempted to kill init! and previous kernels do not work

I am new on using Linux. I use it for some imaging analysis. Today my ubuntu upgraded itself but at the end of the upgrade it gave error. After that the system blocked. I restarted the machine ...
0
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1answer
70 views

What is the lastest stable kernel and how to install it?

I face a problem with installing kernel 4.6 on Ubuntu 16.04 . Someone said because it was unstable. So What is the latest stable version of kernel and how to install it.
1
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1answer
2k views

Updating to Kernel 4.6 on 16.04 [closed]

I have a fairly fresh install of Ubuntu 16.04 running on Kernel 4.4.0-22. Today I saw that the latest stable kernel version is 4.6 on kernel.org and I have a few questions: Is it worth ...
0
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1answer
92 views

Surface Pro 3 - installing kernel 4.6 [duplicate]

I am new to ubuntu. I just installed latest ubuntu and I am trying to install the latest kernel v4.6, so I can get a few functions of the type cover to work. I am not familiar with the kernel ...
0
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0answers
14 views

14.04 Multiple Crashes, Different Circumstances, How to fix?

I am running 14.04 on Hard Drive not Virtual (just for clarification). Sometimes I am doing something, anything, maybe browsing the internet or typing something, and then it gets frozen. I have to ...
6
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2answers
9k views

How to get the GRUB using virtualbox?

I have ubuntu-12.04 on my virtualbox and I have two kernels in /boot (old and new). When I restart the vbox no grub appears to choose! and the result of cat /proc/cmdline still shows the old kernel is ...
0
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1answer
189 views

Kernel build 4.4.0.22 decreases battery life (16.04 LTS)

My battery life was fine when I installed 16.04 LTS (clean install) on my Lenovo z51-70, but after a regular software update or build to kernel, from 4.4.0.21 to 4.4.0.22, it has almost halved (1.50 ...
0
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1answer
34 views

Compilation of Linux kernel 3.14 stops without any errors on ubuntu 14.04

I'm trying to compile linux kernel 3.14 on ubuntu 14.04. Before anyone points out, I know newer stable versions of the kernel are available but I have been asked to install 3.14 itself. So, I wrote a ...
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0answers
93 views

Ubuntu 16.04 fails connecting to a specific wireless network

I have a problem connecting to a specific wireless network, just could not connect or obtain an IP address. I'm running Ubuntu 16.04 on my laptop Thinkpad t400, with the network adapter Intel 5100AGN....
6
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3answers
451 views

Suspend broken on Ubuntu 16.04 LTS, Dell XPS 9350

Since I upgraded from Ubuntu 15.10 to Ubuntu 16.04 LTS on my Dell XPS 9350, suspend is broken. When closing my lid the laptop will suspend, but resuming fails and it reboots. I tried pm-suspend and ...
0
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2answers
47 views

Xubuntu Wifi driver not working after update

I'm running Xubuntu 14.04 LTS. I have a TP Link T4U USB wifi adapter, whic is based on the Realtek RTL8812AU chipset. It has been working flawlessly for a number of months, up until Linux kernel 3.13....
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1answer
24 views

Undo installation of an unstable kernel [duplicate]

I am facing a problem with kernel installation. I installed two packages but the last one didn't. So I want to uninstall the first package. In this link I have described what was my problem. my ...
0
votes
1answer
38 views

Where is kernel.release generated and updated?

There a file include/config/kernel.release in Linux kernel source. It contains version of the kernel (for example 4.6.0-rc4+). As I know this value is generated from nearest tag of git. I want to ...
0
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0answers
10 views

Xenial Server is not quite working with 802.1x port-based authentication

Ubuntu server 16.04 with kernel 4.4.0-22. Cisco switch C3750 with 802.1x port-based authentication. Everything went fine until one day, our radius server died. When radius server was unreachable, the ...
1
vote
1answer
49 views

Release name of current signed kernel

Is the output of uname -r always like 4.2.0-37-generic, or would it show the postfix .efi.signed denoting it is a signed kernel, if a signed kernel is booted on a machine (with UEFI) requiring such a ...
0
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0answers
38 views

Bad quality of package for installing linux kernel

I was trying to install kernel 4.6 on Ubuntu 16.04 but I face a problem I follow these steps How to Install Kernel 4.6 in Ubuntu: There are .deb packages for this kernel release available in kernel-...
0
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0answers
36 views

Kernel Panic not syncing: Is HDD corrupt?

when I start my laptop, I get a kernel panic every time (even in rescue mode or older kernel versions). I don't know what causes the issue it comes up since last shutdown. Bevore a basic command line ...
0
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0answers
12 views

Keyboard drivers uninstall after kernel update

I have a g710 keyboard which has extra buttons, so I have to install a driver https://github.com/Wattos/logitech-g710-linux-driver. The problem is, whenever a new kernel update comes out I have to ...
0
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1answer
45 views

Which is the “correct”/“official” kernel version? (server vs cloud-img installs)

I recently used official images to install bare metal servers and VMs (using a cloud image) and found out they install quite different kernels out of the box: 14.04.4 server iso (from here) installs ...
0
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1answer
11 views

Which file defines the virtual console color

I am trying to find the source in the Ubuntu kernel tree that defines color values for the virtual console. Where is it defined? On other linux distributions, it is defined in drivers/char/vt.c
0
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1answer
85 views

Install old kernel in ubuntu 16.04

My laptop can work perfectly on kernels up to 3.13.0-85 so is it possible to install the same in Ubuntu 16.04 without affecting it's performance? And if yes then how?
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0answers
14 views

WCHAN = 0 for a sleeping task?

I am a little confused about the status of a process I have. It looks like this: $ ps -eal | head -n 1 ; ps -eal | grep perf F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD 4 S ...
0
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0answers
28 views

Install cloud image on Rasperry pi 3

Can anybody explain what's the current status of Ubuntu on Raspberry Pi 3? AFAIK only 32-bit ARM mode is supported, but there are some thngs I can't understand: Officially, there is no ARMv8 Liunx ...
0
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0answers
41 views

errors while trying to update to new 3.16 kernel

Error! Bad return status for module build on kernel: 3.16.0-71-generic (x86_64) Consult /var/lib/dkms/amdgpu-pro/16.15.2-277429/build/make.log for more information. Warning: No support for locale: ...
0
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0answers
23 views

Laptop messing up after installing/deleting linux-image, linux-headers, and the like

Yesterday, my laptop was acting up - very high CPU, hot to the touch, etc. I had no explanation for the sudden change (nothing could account for the high CPU usage), so I checked my apt history to see ...
0
votes
0answers
8 views

Enable DRM_KMS_CMA_HELPER in linux kernel [duplicate]

I'm trying to recompile my Linux Kernel 3.18 with DRM_KMS_CMA_HELPER enabled, but editing the .config file is not working. I have the dependencies enabled, but it still shows and not enabled. Is ...
0
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2answers
730 views

Kernel Headers 3.10.18 not found in VMware Kernel Module Updater

I had Ubuntu 14.10 and VMware Player 7.0.0 installed on my Acer Chromebook 11. Wwhen I open VMware, I get the exact same error message as mentioned this thread - "What is the path to the kernel ...
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3answers
388 views

Ubuntu 16 Kernel BUG (“Oops: 0000 [#1] SMP”) related to amdgpu

I recently installed Ubuntu 16.04 on my personal notebook (Dell Inspiron 5548) and everytime I try to logout from any user account, I get a Kernel BUG ("Oops" message) related to amdgpu. I tried ...
0
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0answers
353 views

Linux generic-lts-trusty depends: linux-generic but it is not installed

I am using Ubuntu 14.04.3 LTS and the kernel is "3.13.0-76-generic". But when I am trying to upgrade it by the following command: sudo apt-get upgrade I get the following dependency related error: ...
0
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0answers
75 views

system freeze on monitor wake-up after upgrade to 16.04

I have nvidia gtx 980 (driver v. 364.19), MSI X99S MB, i7-5820k 32GB DDR4 ram. My setup is 3 4k monitors (on DP-0, DP-2 and Dp-4) After my monitors go to sleep (the computer is not asleep) then ...
0
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0answers
23 views

Boot widnows from grub prompt

I'm quite a noob with linux and I'm experiencing some huge troubles with an Ubuntu 16 installation. My system is composed of 2 disks: Windows 10 and Grub on the first (sda) and Ubuntu 16 on the ...
4
votes
1answer
7k views

Fastest way to reload graphics driver module?

I am trying to get my way around on graphics driver development, in this case for modifications on a DRM kernel module, called gma500_gfx. Every time when I have made a change to this driver, I start ...
0
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0answers
18 views

How to find installed kernel image metapackages?

I have used this, but is there a better way? dpkg-query -W -f='${Package} ${Status}\n' | awk '/^linux-(.+-)?image-[^0-9]+(-lts-[^ ]+)? [^ ]+ ok installed/{print $1}' How to find kernel metapackages ...
4
votes
2answers
16k views

How do I turn off PCI devices?

With the purchase of an Intel SSD and 85WHr Li-ion battery and the linking of wifi and bluetooth to my laptop's wireless switch, extensive Intel PowerTop usage, switching from compiz to metacity, ...
0
votes
0answers
17 views

sysctl.conf or grub file for kernel parameters?

As far as I know it is possible to send kernel parameters with both the sysctl.conf and the grub2 configuration files at boot time. If the same parameter is configured using both methods which ...
0
votes
1answer
335 views

How to compile Ubuntu 16.04 kernel with zfs module

I build custom Ubuntu kernel with make localmodconfig at the Ubuntu 16.04 lts server with installing zfs and mounted zfs pool. make localmodconfig using config: '.config' zfs config not found!! ...
0
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0answers
38 views

How do I install custom kernel header files?

I've compiled and loaded a new kernel with: make localmodcongif make headers_install make install update-grub But for new kernel I do not get a new directory in /usr/src/linux-headers-<...
1
vote
4answers
79 views

What other software is available to remove old files/kernels to increase space and cleanup drive?

Like many others users, I need to remove files/kernels to increase space because I'm getting the error message that says I can't update because I have don't have enough space in \boot. I've searched ...
0
votes
1answer
215 views

how to get a just partly appearing WWAN-dongle to work correct/permanent?

i have got a notebook (HP EliteBook 8460p) with an built in HP hs2340 HSPA+ Mobile Broadband Module (Ericsson F5521gw - the label i found on the WWAN hardware dongle)... from the first days on the ...
4
votes
1answer
4k views

How can I troubleshoot why Ubuntu keeps crashing on my laptop?

I have a one year old Acer Aspire 4752G netbook running Kubuntu 12.04 LTS with all the latest distribution updates installed. It was previously running great until about a week ago when it suddenly ...
0
votes
1answer
21 views

Boot failure with Kernel 4.x

My HP Workstation Z820 is not booting with Kernel > 3.9x Trying to update to 15.10 or 16.04 fails. New install of 16.04 from CD fails also - see image..
1
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1answer
94 views

Why so many linux-headers, even for absent images

I removed many of linux-images of 3.13.0-x versions, I left few versions installed. ~ > dpkg --list | grep linux-image rc linux-image-3.13.0-83-generic 3.13.0-83.127 ...
1
vote
1answer
28 views

why I can't intall kernel sources from repository

I was trying to install VirtualBox in my machine. I found that I need the kernel sources to do so. To see which kernel sources I needed I checked uname -r which gave: 3.2.0-59-generic-pae The first ...
0
votes
1answer
1k views

unblock dell-wifi soft block

rfkill list shows: 0: phy0 Wireless LAN Soft blocked: no Hard blocked: yes 1: dell-wifi: Wireless LAN Soft blocked: yes Hard blocked: yes I already ran rfkill unblock all and yet ...
1
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1answer
70 views

End kernel panic: vfs: Vista unable to mount root fs on unknown-block (2, 0) HELP!

Newbie Downloaded torrent. Used UUI. Placed Ubuntu on appropriately formated disk. I get this message at boot... 0.536889] kernel offset :disabled 0.563918] - - - [ end kernel panic - not syncing:...
0
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0answers
15 views

Is linux-generic installed when linux-signed-generic is installed?

Similarly is linux-lowlatency installed when linux-signed-lowlatency is installed? Signed images seem to depend on regular images, but that is not the case with meta packages. So it is not technically ...