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

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How can I install the daily build of the ubuntu kernel into the ubuntu live CD?

I don't have a clear idea of how to put into the live CD the newest kernel build(4.7 at this time) I tried downloading the kernel from here http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/ How ...
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Startup error, tried everything, sudo wont work, apt install wont work

lvmetad is not active yet using direct activation during system init volume group allsteelgaming-vc not found I got an update to Ubuntu but this is what pops up please help, I don't know how to fix ...
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configuring kernel build

I hope this is the right place for such question (if not please tell me and I'll move the question). I am building ubuntu kernel, I use instructions in http://www.variwiki.com/index.php?title=...
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1answer
21 views

How to set default kernel in GRUB without Grub Customizer?

After the recent update I wasn't able to start my system (black screen). So I powered off the PC and turned it on again. Saw the following grub menu: Ubuntu Advanced options for Ubuntu System setup ...
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27 views

How to Activate Zswap Successfully for Matlab Computation in Ubuntu 16.04?

Condition: to activate zswap module in Ubuntu 16.04 successfully for Matlab/.... computation Relevant part in /etc/default/grub ... zswap.enabled=1 # NB only change here ...
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How to disable USB3 LPM (hardware-controlled power management)?

I have some issues with USB3 flash drives in Ubuntu 16.04. They keep going into U1/U2 mode (see here for more information), occasionally resulting in I/O errors. I already disabled traditional (...
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1answer
21 views

kernel build - cross-compile

I do a cross compile of ubuntu kernel build. I am following instruction for building ubuntu for omap: fakeroot debian/rules clean do_tools=false skipabi=true skipmodule=true dpkg-buildpackage -B -...
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1answer
143 views

How to properly copy files from hard drive to USB flash drive in tty4 terminal?

How to properly copy files from hard drive to USB flash drive in tty4 terminal?(mount, copy, unmount, exit, etc) P.S.Can no exit from tty4 terminal via Ctrl+Alt+F7 command, only with Alt+SysRq+B(...
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Kernel Panic mt7601uap

I wanted to create a wifi hotspot on my ubuntu 16.04 with mt7601usb wifi adapter . So I cloned and compiled mt7601uap driver from here which is supposed to be ap only . But after rebooting im stuck ...
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14 views

Auditing device files using auditd daemon

I am trying to see what commands are typed in my terminal and serial port. For that I am using auditd daemon which helps me in auditing files. I thought of a creating audit rules on /dev/tty and /dev/...
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43 views

Problem installing linux-generic on VPS to update kernel 2.6

While setting up my VPS i was stumbling over following problem. Installed is Ubuntu 14.04.4 LTS. I checked the kernel and installed is the really old version 2.6.32-042stab113.10. For getting a ...
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Systemd can't analyze kernel boot time?

Is there a way to make systemd plot kernel module times or be aware of Kernel time information? dmesg isn't horrible but I would appreciate something that point me less details like only modules time ...
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Fanspeed with Ubuntu on ASUS UX501VW

I installed Ubuntu 16.04 on my ASUS UX501VW and the fans are blasting at full speed. I have tried to install the kernel 4.6 (as suggested here) and kernel 4.3.5 (as suggested here), but both didn't ...
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1answer
112 views

Freezing of screen on Ubuntu 16.04

I have recently installed Ubuntu 16.04 and it seems to freeze randomly. I tried to check out the the solutions at Ubuntu 15.10 and 16.04 keep freezing randomly but on installing these kernels, I got a ...
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1answer
15 views

Add a kernel parameter ? `mmcblk.perdev_minors`

In order to see and be able to mount more than 8 partitions in a flash drive (mmcblk), I need to change the kernel parameter mmcblk.perdev_minors. How can I do it ? With a livecd Xubuntu/Ubuntu. (...
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1answer
24 views

Ubuntu 16.4 desktop End kernel panic - not syncing : attempet to kill init ! Exite code=0x00000009

I use windows and i just wanted to try ubuntu but there is problem when i wanna install ubuntu . would you please help me? I dont know any thing about linux.my laptop is asuse n551 vw enter image ...
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How to modify kernel parameters without causing Kernel panic on OS

This is not a duplicate question of kernel parameters, i already cause a kernel panic on my ubuntu 14.04 distribution trying to improve the performance of Nginx and postgresql, i just want to know how ...
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28 views

Can't find installed kernel version

I'm trying to uninstall some kernel versions to free up space in /boot. I did kernelver=$(uname -r | sed -r 's/-[a-z]+//'); dpkg -l linux-{image,headers}-"[0-9]*" | awk '/ii/{print $2}' to find which ...
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unable to install kernel headers on android [closed]

I am using kali linux 2.0 on android via linux deploy. I tried to install linux header for kernel by following commands: uname -r : 3.10.54+ Then sudo aptitude install linux-headers-$(uname -r) It ...
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2answers
33 views

Accidentally deleted current kernel [duplicate]

I've been very stupid and while trying to free space on /boot, I think I've accidentally deleted my current kernel. How it happened: >>uname -i linux-image-extra-4.4.0-24-generic now uname ...
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1answer
107 views

dpkg: error processing (--configure) on Ubuntu 16.04 live USB

I'm using Ubuntu 16.04 on a live USB, under a intel NUC. I've used YUMI for creating the live USB and I have other SO's as lives on the USB. When I boot the USB, I get a pop up error, that says ...
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1answer
22 views

How to repare corrupt ubuntu12.04 without loss any data?

My ubuntu 12.04 system in not open it shows only black screen on booting time because accidentally i remove some file from media folder like sda1, but i am not sure that this is the main region to ...
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1answer
15 views

How can GRUB access initramfs file if its stored in RAID

I am reading about how boot process in Linux works and just cannot understand one thing: If GRUB is the one who copies initramfs into memory and only after that init process starts (which is then ...
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Intel centrino 6205 doesn't work in ubuntu 14.04

I bought a refurbished ThinPad x220 and installed ubuntu 16.04. The problem is that the wireless connection drops periodically while shown as connected. I have an Intel centrino advances-N 6205 ...
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1answer
82 views

kernel 4.4.0-31 breaks my nfs mount but 4.4.0-28 is ok

I have a problem with the latest 16.04 kernel (it breaks my nas/nfs connection, it says because of file ownerships, but I suspect it is experimental stuff with update/systemd etc). I believe this ...
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25 views

Failed to start Apply Kernel Variables

i am using ubunto 16.04 and have this problem for about a week now, when ever i boot linux, or shut down linux, i get an arror message "Failed to start Apply Kernel Variables" which directs me to see ...
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11 views

How to see boot messages when system crashes during boot?

After installing nvidia drivers, my system is crashing every time during the boot. I would like to investigate the cause of the problem. I would like to know how to see/check the messages that the ...
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1answer
56 views

Unable to free space on /boot

I have no more space on /boot because of too many installed kernels. So I'm trying to remove old kernel versions but getting an error: $ sudo apt-get purge linux-headers-3.13.0-86 Reading package ...
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18 views

Kivy App running. Nothing rendered on App window

I have been using Kivy for over couple of years now. But I have acquired a new machine and something weird happened when I tried running the app. Kivy apps are running, the app window will open, ...
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0answers
31 views

Kernel panic - not syncing: fatal exception in interrupt

There are a lot of posts on this, but I haven't found an answer yet. This happens to me very occasionally, I'd say every two months or so, on a machine that boots automatically ~ 2x/day (it's a ...
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Ubuntu 16. Startup finished in 1min 32.747s (kernel)

From plot.html that I created using systemd-analyze plot > plot.html, here is I got: Startup finished in 1min 32.747s (kernel) + 18.861s (userspace) = 1min 51.609s Ubuntu 16.04 LTS MyName (Linux 4.4....
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Apt-get seems to be broken. Cannot install anything

How can I fix this? rimmer@local:/$ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically ...
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3answers
36 views

Update problems… Errors Errors

I tried everything like removing the 24 kernel manually but no matter what I do this is my output of sudo apt-get upgrade: Reading package lists... Done Building dependency tree Reading state ...
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40 views

Ubuntu (GNOME) 14.04 just updated, and now cannot login to X server

I have just updated my Ubuntu gnome 14.04 and restarted the computer, Now the system does not load the X and gnome. It is stuck in a black screen, and I can see some text flashes from time to time. ...
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1answer
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How do I know which programs use a particular file?

I found a file called kernel-4.2.5 in my Home directory and I want to delete it but I don't know what harm that could cause. Is there a way of knowing if that file is being used because my kernel ...
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1answer
214 views

Has 3.19.0-65 introduced new Secure Boot requirements to 14.04 LTS?

My laptop came with 14.04 (Trusty Tahr) LTS. Since then, I have made no significant changes, and I have been applying updates whenever I was notified of them. On 2016-07-15, I was applying updates ...
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37 views

Error trying to start Virtual Box to add a .ISO

When try to start a virtual machine I get these error messages: The virtual machine has terminated unexpectedly during startup with exit code 1 (0x1). NS_ERROR_FAILURE Kernel driver not ...
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26 views

Slow Boot 14.04

I updated to 4.3.0-040300 kernel to get my wifi working but now booting takes much much longer. I'm using a lenovo thinkpad yoga 460, booting from an external hardrive via usb port and I've deleted ...
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Ubuntu 16.04 Asus UX501VW headphone and touchpad issues

I'm new to the Ubuntu and I'm trying to get it working on my Asus Zenbook UX501VW. I have everything mostly working except for a few things. I am currently on kernel 4.6.4, but I am still having ...
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No suitable module for running kernel found - ubuntu 12.04 on LINODE

I am trying to install VirtualBox with Vagrant in Ubuntu 12.04 on a Linode VPS. Everytime I try installing VirtualBox i get an error saying No suitable module for running kernel found {fail}...
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1answer
12 views

IRQ DMA error fills up dmesg

I recently upgraded to ubuntu 16.04 and my processor keeps running. I checked top and there's a kworker always running. I checked dmesg errors like the following keep be logged: [329479.460021] nand: ...
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Updated Ubuntu 16.04 and Now stuck in memtest86+

I recently updated the latest installs on Ubuntu 16.04 and when it finished memtest86+ started running and when I reboot it just start the test over and over. I spam ESC to get to the grub version ...
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3answers
212 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 ...
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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 ...
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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 ...
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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 ...
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1answer
63 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 ...
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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 ...
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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 ...
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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 ...