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

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4
votes
3answers
221 views

No network, no usb after kernel update in 14.04

Today I did a regular update for my Ubuntu 14.04 installation on my Dell XPS 13 and the update included a new kernel (I guess it was 3.19.0-65). I noticed that the wireless stopped working after the ...
0
votes
0answers
34 views

Ubuntu 16.04: apt-get update doesn't see the core updates

After fresh installation apt-get update & upgrade install all updates except of the core (linux-generic, linux-headers-generic, linux-image-generic). Terminal returns that 3 packages left ...
-1
votes
0answers
17 views

adding usb wifi adapter support to htc one m8 sprint

I'm searching for this all over xda and net and haven't been successful ,So i followed this guide ,because it seemed to be covering everything in question,and the next page also has a helpful step by ...
0
votes
0answers
9 views

What will I miss if I don't choose GENERIC initrd?

I have a laptop where I build my system from minimal iso. So in the process, it presents me to choose GENERIC vs TARGETED initrd. I have always gone for TARGETED initrd just on hunch. What is the ...
2
votes
1answer
64 views

Trigger if directory size exceeds threshold

I have written a shell script to backup data to s3 and i want to trigger this shell script when ever the system storage space goes critical lets say when the system reaches 80% of its capacity. I know ...
0
votes
0answers
23 views

kernel warning when I install Ubuntu [duplicate]

when I install Ubuntu with a USB disk (such as picture as below), following message occurred: task swapper/0:1 blocked for more than 120 seconds. And my computer have an CPU of core-i7-4710MQ and ...
0
votes
0answers
16 views

glibc 2.23 on 16.04 LTS missing sched_getcpu from sched.h

I'm trying to compile some C on Ubuntu that calls sched_getcpu(void) but there seems to be a problem. I'm looking at /usr/include/ and the function is missing from sched.h So Ubuntu's own man pages ...
0
votes
0answers
14 views

Kernel message in 16.04 LTS

I'm using 16.04 LTS for a while. Recently (probably after an update) the following messages come up: Jul 13 15:47:36 host kernel: [ 495.728558] pwr = 1591 bb = 1450 str = 3140 Jul 13 15:47:36 host ...
0
votes
1answer
65 views

freezing and getting this on every boot: kernel: intel_soc_dts_thermal: request_threaded_irq ret -22

I use Ubuntu 16 alongside win 10 on lenovo g50-70 (intel chipset) I get this line on every boot, kernel: intel_soc_dts_thermal: request_threaded_irq ret -22, I was wondering if this is related to ...
0
votes
0answers
22 views

Lots of kernels not being removed by Bikeshed

I've got an Azure based Ubuntu 14.04 LTS Server I ran purge-old-kernels (bikeshed) and it said just 1 kernel was eligible for removal. So I let it remove that one. Then I did a check for all kernels ...
0
votes
0answers
27 views

Character Device Driver Build issue

I wanted to build the character device driver which I have as per my requirements in fedora core(fc6) system but it is giving the below error while building the character device driver source file ...
0
votes
0answers
45 views

Make an USB live system from an installed Ubuntu 16.04 (not from ISO)

I have an installed amd64 Ubuntu 16.04 and the kernel updated to linux-4.7-rc6. I now want to create from this (note: not from the ISO) a bootable USB key with a minimal live system. It should not ...
1
vote
0answers
33 views

Headers for the kernel were not found

Im trying to install the guest additions for the virtualbox. my main operating system is xubuntu and the OS on the VB is ubuntu 14.04 so I have the iso file on CD (the computer is offline), and when ...
2
votes
0answers
33 views

Can't suspend to ram since linux 3.8 kernel - 16.04LTS

With ASRock N68C-S UCC motherboard, suspend always works until ubuntu 12.04 include. But not since 3.11 kernel (even with 12.04). Also, suspend don't work with 14.04 and 16.04. I would like to make it ...
1
vote
1answer
162 views

Ubuntu 16.04 with linux 4.7-rc6 kernel

I know (and I did it) how to make an USB key with Ubuntu 16.04 amd64 on it. What I do need for a special hardware purpose is a kernel 4.7-rc6 on this USB key because only this will bring support for ...
1
vote
1answer
223 views

“Lvmetad is not active yet, using direct activation during sysinit” on boot?

Some time ago I installed Ubuntu 16.04 on my PC. Everything went well and no problems so far. When the first kernel update came out I could not start it and got the following error: Lvmetad is not ...
3
votes
0answers
23 views

Ubuntu Server won't work in QEMU: KERNEL PANIC

I tried to install ubuntu-16.04-server-amd64.iso in QEMU as a virtual machine. This was my command to generate the image file: qemu-img create -f qcow2 confImage 100G After creating the image file ...
0
votes
0answers
27 views

Error in installing kernel

In trying to fix this problem and others I thought I would try downgrading the kernel to the one I was using in 12.04, which ran perfectly. I downloaded the following kernels: linux-headers-3.2.0-...
-1
votes
1answer
33 views

kernel takes long load time

nearly I bought a ssd and installed ubuntu 16.04 , everything is ok but my bootup time is too long instead of my friend's ubuntu , so i ran systend-analyze and find the kernel load time is too much ...
1
vote
0answers
20 views

“Invalid Magic Number” after updating kernel post-install

After selecting Ubuntu from the GRUB menu, I immediately get an error as the title describes. The only line before this is about loading the ramdisk (I can take a picture and post it to Imgur or ...
0
votes
1answer
67 views

16.04 - newest kernel cannot be removed

My sound stopped working after upgrading to linux-image-4.4.8-040408 (I am using 16.04). I tried the steps specified here help.ubuntu.com but got stuck when trying to execute sudo apt-get install ...
0
votes
1answer
20 views

Issue while updating my Ubuntu 14.04

Kindly help with this issue. http://paste.ubuntu.com/18866967/ Details of the system Kernel Linux 3.19.0-33-generic (x86_64) Compiled #38~14.04.1-Ubuntu SMP Fri Nov 6 18:17:28 UTC 2015 C Library ...
-1
votes
0answers
30 views

Network problem Intel card over crossover ubuntu 16.04

i am working with ubuntu linux 16.04 kernel: 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux i have build up a small cluster with drbd, corosync and ...
0
votes
1answer
19 views

Kernel error: hdaudio no AFG or MFG node found

During boot on my laptop (running 16.04, all packages updated) I get hdaudio errors about no AFG or MFG node found. The sound works, and I'm not sure what this error is trying to tell me. From ...
1
vote
0answers
26 views

System freezing… No way of capturing the reason why?

I have a PC that has a number of peripherals connected to it that is intermittently experiencing a freeze of the OS. There are 6+ USB devices and four monitors connected to the PC. Details of system:...
0
votes
0answers
29 views

How to install ACS override and i915 VGA patch?

When using arch linux you can just install the "linux-vfio-lts" kernel using a single program, called pacaur. However I am attempting to try use GPU pass through using Ubuntu Server 16.04 LTS and I am ...
1
vote
1answer
122 views

Package udev is not configured yet

Today I decided to upgrade my Ubuntu Desktop 14.04 LTS to 16.04. Unfortunately, the upgrade process crashed on the way, no idea why. When I reboot I am left only with a black screen, if I choose the ...
0
votes
0answers
76 views

How to remove old kernel in 16.04

I am using Linux Ubuntu mate-desktop 4.4.0-24-generic #43-Ubuntu SMP Wed Jun 8 19:27:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux. Just recently I am experiencing problems with updating and ...
0
votes
0answers
17 views

Packages Required for arm64 bit kernel compilation

Hello Guys Hope you are doing good :) I am using Ubuntu 16.04 and I want to compile an arm64 kernel for my android device which is msm8916 snapdragon 410 I installed the build-essential package but ...
3
votes
1answer
132 views

Kernel load module error during boot up

I'm using ubuntu 15.10 on a dell laptop. It works fine but recently I've been getting slow boot times (~1 minute). So I was looking around and when I read the /var/log/boot.log file, I see the ...
1
vote
0answers
95 views

Ubuntu 16.04LTS freezing after login, desktop frozen, mouse moves but cannot click

Ubuntu 16.04LTS freezing after login, desktop frozen, mouse moves but cannot click. This happens after the computer has been asleep for awhile left unattended as it's primarily just a server. I've ...
2
votes
0answers
51 views

Login loop after removing old kernels

I used the last command of this answer to remove (many) old images and kernels. My current kernel is 3.16.0-76. After that I am stuck in a login loop. I already tried/checked the following things ...
0
votes
0answers
7 views

Noisy Sound when turning computer on 14.04

I have had the OS for a while. I installed 14.04. Hrre is my "uname" info just in case: myname@myname-Inspiron-5558:~$ uname -a Linux myname-Inspiron-5558 3.19.0-64-generic #72~14.04.1-Ubuntu SMP Fri ...
0
votes
1answer
85 views

Installing the latest kernel

Which deb files(http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7-rc6-yakkety/) are relevant for 64-bit install. The instructions mention not every 64 filename should be installed(https://wiki.ubuntu....
0
votes
0answers
35 views

Unable to boot the System to Ubuntu

System is not booting to Ubuntu. It hangs immediately after [ 51.152935] ACPI: Added _OSI(Processor Aggregator Device) kernel dmesg. [ 0.463584] Switched APIC routing to physical flat. [ 0....
0
votes
0answers
61 views

Failed to find cpu0 device node at every boot

I am using Ubuntu 16.04 with Kernel 4.7 RC6 and at every boot I got the message: Failed to find cpu0 device node. It is something to fix or is nothing important ?! Can you help me ?! Thanks in ...
3
votes
0answers
30 views

uname shows uninstalled kernel version

This is the list of installed kernel versions on my system: bwvdnbro@wixie:~$ dpkg -l | grep linux-image ii linux-image-3.13.0-73-generic 3.13.0-73.116 ...
1
vote
0answers
77 views

How do I recover from a failure to boot Ubuntu 16.04 after upgrading from 14.04?

I recently upgraded my venerable 12.04 Ubuntu Desktop (which was itself upgraded from 8.04 and 10.04) to 14.04, which worked fine (I spent five days checking hundreds of files and settings). I never ...
1
vote
1answer
36 views

Realtek r8191SU driver for kernel >= 3.10

I'm trying to build driver for my WiFi dongle which reports as rtl8191SU, however with no luck as the official drivers from RealTek seems only to go to kernel version 3.0.2, while the current version ...
1
vote
0answers
65 views

Ubuntu 16.04 constantly freezing leading to kernel panic

I had issues with my laptop constantly freezing. So I found a post where someone had suggested updating the kernel to remedy the issue. I followed the steps outlined here: http://askubuntu.com/a/...
1
vote
1answer
100 views

Can't install AMD drivers ubuntu 14.04

So when i try to install AMD driver from their website it always give me that error: Please install the required pre-requisites before proceeding with AMD Catalyst installation. Please check file ...
-2
votes
1answer
112 views

Cryptic message about linux-image-4.4.0 when trying to install anything (or upgrade) 16.04

I'm getting this frustrating message. I didn't mess with anything system related. Reading database ... 264956 files and directories currently installed.) Removing linux-image-extra-4.4.0-21-generic (...
0
votes
0answers
21 views

Kernel panic immediately after grub when installing Ubuntu on a PC

I just bought a second hard disk for my PC so I could install Ubuntu. I can't even launch the installer, Linux panics immediately at kernel init. Looks like it's related to https://bugs.launchpad....
1
vote
0answers
11 views

Creating memory pool for driver module

I have created my own memory pool for cache and inserted my module into kernel space in Linux 2.6 and it has worked. It has displayed the cache information using cat /proc/slabinfo. PROBLEM: My ...
0
votes
1answer
73 views

Exceptional levels of kernel spam about “MR_DCMD_PD_LIST_QUERY failed/not supported by firmware”

Jul 1 22:17:14 nosgoth kernel: [1382019.484038] megaraid_sas 0000:01:00.0: MR_DCMD_PD_LIST_QUERY failed/not supported by firmware Jul 1 22:17:15 nosgoth kernel: [1382019.516031] megaraid_sas 0000:01:...
0
votes
0answers
15 views

how to determine right amount of max_user_watches

I'm running maldet to monitor a few web root directories and it failed to start with below log messages: $ sudo tailf /usr/local/maldetect/logs/inotify_log Setting up watches. Beware: since -r was ...
0
votes
0answers
58 views

Apply patch to Macbook Pro 11,4 to fix Power/Suspend

I have successfully installed Ubuntu 16.04 on my 15" Macbook Pro mid-2015. Currently, shutting down and suspending does not work, but I found this patch here that applies a patch to the kernel. I ...
3
votes
1answer
72 views

Can't upgrade because of kernel dependencies

I get the following error when trying to upgrade: The following packages have unmet dependencies : linux-image -extra- 3.16.0-73 -generic : Depends : linux-image- 3.16.0-73 -generic but it is not ...
0
votes
1answer
29 views

Blank screen after kernel auto-update in Ubuntu 15.10 (from 4.2.0-41.48 to -42.49)

First time this happens to me since I switched to linux (>1y). When I reboot with the old kernel (-41.48) i get the GUI and all is fine. Any known issues with that new -42 kernel ? I have a AMD/ATI ...
0
votes
0answers
628 views

Why Ubuntu 16.04 Setups Linux Kernel 4.4 in Linux kernel 4.6 Installation?

I installed Linux kernel for Ubuntu 16.04 64 bit as described here. After 17 days of use, I started to get System crashes at the startup, which logs I sent to developers. I do where same output also ...