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

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Updating to Kernel 4.6 on 16.04

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 ...
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1answer
11 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 ...
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1answer
16 views

Undo installation of an unstable kernel

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 ...
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1answer
21 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 ...
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0answers
4 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 ...
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1answer
36 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 ...
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0answers
21 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.
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0answers
24 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 ...
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0answers
14 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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2answers
204 views
+50

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 ...
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2answers
26 views

VirtualBox on Ubuntu 14.04 Issue

I am kinda new to Ubuntu/Linux/Unix so please bare with me. I have purchased a virtual private server and installed Ubuntu 14.04 on the server, afterwards I have Installed VirtualBox on the server and ...
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0answers
15 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 ...
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0answers
9 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
38 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
9 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
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1answer
38 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
10 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 ...
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0answers
17 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 ...
1
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1answer
187 views

Holding packages in Ubuntu 15.10, Unexpected un-hold. does APT knows when particular HW modules are updated?

I held the Kernel so while updating, the newer kernel version weren't marked for installation until yesterday. It is a security update so I know is recommended to do this update but the question is ...
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0answers
21 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
21 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 ...
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0answers
6 views

Enable DRM_KMS_CMA_HELPER in linux kernel

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 ...
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0answers
99 views

How do i load Ubuntu 16.04 and above with the kernel 4.4?

I am the owner of a laptop with the Intel Celeron N3050 processor. Ubuntu 16.04 will not boot from a live USB, it only shows a black screen. When I decided to upgrade Ubuntu 14.04's kernel to version ...
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2answers
693 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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0answers
19 views

Mint + Kernel 4.5.4: laptop loses suspend state when unplugged [on hold]

I'm using Linux Mint 17.3 on a newish Asus laptop with Mate desktop. To get the Nvidia graphics and Elan touchpad both to work, I installed the 4.5.4 Linux kernel. I've pretty much got everything ...
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3answers
201 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 ...
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8answers
3k views

Ubuntu 16.04 Skylake 6th Generation Screen Flickering

I have a Lenovo ThinkPad t460s here. It is the NVMe PCI SSD version. The CPU is i7 6600U (Skylake 6th generation) with Intel HD 520. About a month ago (beginning March 2016), I installed Ubuntu GNOME ...
0
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0answers
343 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: ...
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0answers
36 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 ...
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0answers
22 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 ...
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1answer
6k 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 ...
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0answers
12 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
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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
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0answers
11 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
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1answer
67 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!! ...
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0answers
25 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 ...
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vote
4answers
66 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
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1answer
200 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
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0answers
17 views

Ubuntu boot error- Kernel Panic not syncing attempting

I am using Ubuntu 14.04(dual-boot).Suddenly I am getting this error on boot:- kernel panic - not syncing: Attempted to kill inint ! PId: 1, comm: init not tainted 2.6.32.-279-5.2.e16.x86_64 #1 call ...
0
votes
1answer
19 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..
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1answer
49 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 ...
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0answers
83 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 ...
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1answer
23 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 ...
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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
30 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 ...
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0answers
11 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 ...
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5answers
23k views

How to skip kernel update?

I am running Ubuntu 12.04.1 LTS i686 on VirtulBox. Every time I check the updates, there's a new Linux kernel. If I install the new kernel, I have to install the Virtulbox Guest Additions again and ...
0
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0answers
17 views

Is there an efficient and safe way to remove VirtualBox kernel modules for uninstalled kernels

I used sudo apt-get autoremove --purge to remove old kernels in Ubuntu 14.04. And this works fine as long as they are marked as automatically installed but it said that it could not remove the ...
0
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1answer
39 views

Where does update-initramfs look for kernel versions?

I needed to regenerate initrd. Doing this: update-initramfs -u -k all threw up errors for a kernel I compiled and then deleted some time ago (because update-initramfs could not find the ...