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Questions tagged [kernel]

Questions concerning the Linux kernel in Ubuntu. Issues may including upgrading and installing kernels, compiling, patches, and kernel modules.

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boot takes too long and wifi wont connect, among other errors. ubuntu 18.04.2

I'm a noob to Ubuntu and I' facing several problems, and every time I try to solve one, two more appear. My number one issue is on how fix the ACPI errors below because it is taking ages for the ...
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0answers
12 views

Error in make install arch/x86/Makefile:245: *** You are building kernel with non-retpoline compiler, please update your compiler.. Stop

I've been trying to follow the steps given on this site http://ubuntuhandbook.org/index.php/2018/08/no-wifi-adapter-found-hp-laptops-ubuntu-18-04/ to install an WiFi adapter device driver on my HP ...
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20 views

Can't figure out how to apply Kernel Oops fix

Sorry for the noob question, I am new to Linux. I have no idea how to apply a fix for a wi-fi issue I am having. I received this: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/...
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18 views

Ubuntu Server Xenial - Failing to boot randomly

I recently got a new server PC. I thought Ubuntu would be a good operating system for it. First thing I noticed that the latest LTS didn't boot. I ignored this and just used an older version 13.04. I ...
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118 views

ubuntu 18.04 + kernel 5.1: installing nvidia GTX1050

I have a dell xps 15 9560 with a nvidia GTX 1050 and I have a problem trying to make work the nvidia drivers 430 (the recommended by ubuntu-drivers) on ubuntu 18.04 using gnome on Xorg under the ...
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0answers
25 views

There is insufficient memory for the Java Runtime Environment to continue - Ubuntu 16.04.6 LTS - 4.15.0-48-generic

Please let us know when will be the next kernal release, One of our production machine which runs Ubuntu 16.04.6 LTS with kernal 4.15.0-48-generic builds are getting failed. the same issue happened on ...
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30 views

Kernel compilation fails against “spl-dkms_*.deb” package not found!

I'm attempting to compile the kernel using this guide but I got an error. cp -rp "/home/stibbons/build/ubuntu-disco/debian/linux-headers-5.0.0-15-generic/usr/src/linux-headers-5.0.0-15-generic" "/...
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32 views

Should I update kernel for the Zombieload attack [duplicate]

Should I update my kernel for this Zombieload attack? I'm running ubuntu 19.04.
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61 views

Can not install kernel 5.1

Im trying to install (Ubuntu 18.10) latest kernel (5.1.3) but I get this error about evdi Selecting previously unselected package linux-headers-5.1.3-050103-generic. (Reading database ... 205300 ...
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40 views

Linux kernel error when trying to install dconf-editor

When running the command sudo apt install dconf-editor I get the output with an error at the end (something about the kernel?) and dconf-editor never installs: Reading package lists... Done ...
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27 views

linux kernel newer then 4.3.x is not supported installing ovs from shell script ubuntu16.04

i am installing openvswitch from the shell file using openvswitch.tar shell file : #!/bin/bash apt-get install -y git python-simplejson python-qt4 python-twisted-conch automake autoconf gcc uml-...
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29 views

Linux AMD setup freezes randomly without any kernel errors

This thing has never worked properly and it's fairly new (I built it on Friday). My specs are: AMD Ryzen 5 2600 Sapphire Radeon RX 590 G.SKILL 16GB 3000MHz Aegis CL16 (2x8GB) MSI B450M Mortar After ...
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0answers
20 views

Kernels not booting since 4.4.0-142

I'm on 16.04. A while ago I installed the latest system updates and no kernels since the 4.4.0-142 will boot. I have 143, 146 and 148 available but none of them boot in neither normal or recovery mode....
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Ubuntu kernel is not loading on laptop

I have Windows 10 and Ubuntu 19.04 on my laptop with grub2 boot loader. Last night I tried to go to Ubuntu, but this error is appeared. laptop model : lenovo ideapad 510-15ikb The /sdb6 is the ...
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32 views

How to troubleshoot VPS crash

I am new to Linux and using a VPS provider. I have an Ubuntu 16.04 droplet and it randomly crashes. I have viewed all of the logs in '/var/log' and have not found any useful info. Below is the last ...
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25 views

19.04 - rtl8812au-dkms installed but not appearing as module [duplicate]

Adding additional info as suggested by chili555 in Wireless antenna does not appear despite its driver being installed. I installed the rtl8812au driver via apt and installation seems to be ...
2
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1answer
145 views
+50

Terminal is frozen after using sudo apt-get dist-upgrade

I tried to update my Ubuntu 16.04 through sudo apt-get dist-upgrade, but now the terminal is frozen (terminal 1). I let it run for an entire day (more than 24 hours) and I just suspended the OS once. ...
2
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3answers
602 views

Has the CVE-2019-11815 bug been patched in the kernel version 4.15.0-50-generic? [duplicate]

The bug has been patched in the Linux kernel 5.0.8 version, according to the news. What about the kernel version 4.15.0-50-generic? How to check a given kernel to find out whether CVE-2019-11815 has ...
0
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1answer
39 views

Can I change CPU governor?

When I run the command: cpupower frequency-info --governors I get the following message: this output available cpufreq governors: performance powersave I want to change it to 'ondemand'. How can ...
0
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1answer
107 views

Need to enable ALX network adapter module in Ubuntu 16.04

Somehow I got stuck with an installation where ALX networking driver module is disabled, so I don't have internet access on the box. If I try to launch a new installation, immediately network adapter ...
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0answers
18 views

How to make signed dkms kernel modules

The repository I cloned is this to get wifi working But I have to disable secure boot, which I don't wanna do and I need wifi working. So the only option is to sign the modules. But I don't know how ...
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0answers
18 views

I can not install any linux with kernel 4. It freezes even in the installer. “ACPI Exception: AE_TIME, Returned by Handler for [EmbeddedControl]”

Trying to install linux desktop with kernel 4, it freezes. The desktop (or sometimes even the installer) responds every 3 seconds, I mean, I can move the mouse for 3 seconds and it freezes, I use it ...
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0answers
15 views

Why doesn't the gpg signature get verified while Ubuntu 16.04 kernel installation?

I'm trying to compile the kernel 'linux-4.15.tar.gz' and I'm following the process for the same. While verifying the gpg signature, the error I'm facing is: gpg: no signed data gpg: can't hash ...
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0answers
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Kernel panic after using boot-repair to fix grub2 issue

I have Ubuntu 16.04 installed on an external hard disk(WD my passport) and i booted on a desktop and then i unplugged the hard-disk before the OS completed shutting down. then when i try to boot using ...
2
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2answers
55 views

Kernel panic trying to boot 4.4.0-146-generic after apt upgrade on 16.04.6 [duplicate]

I can't boot the 4.4.0-146-generic kernel because of a kernel panic. I'm running 16.04.6 on an Intel Core i7-7500U CPU @ 2.70GHz × 4. See image below:
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1answer
18 views

Cannot boot Ubuntu 16.04 on a mining rig with 6 GPUs, AMD 970 motherboard

I can run 6+ GPUs mining rigs successfully on any Intel motherboard under Ubuntu 16.04, however with AMD 970 motherboards, only 5 GPUs work. If I install the 6th GPU, the system boots, then I can see ...
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0answers
29 views

Oracle VirtualBox does not work in Ubuntu 14.04 kernels later than 4.4.0-146 [closed]

Since upgrading to kernel version 4.4.0-143 through 4.4.0-146, Oracle VirtualBox throws an error on sudo /sbin/vboxconfig and does not succeed in building modules to run guest machines. Because ...
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0answers
48 views

Ubuntu 18.04 Server with windows10 on KVM Visualization

I have a Ubuntu 18.04 Server with windows10 on KVM Visualization. This is running on a Dell PowerEdge 2950 server. I recently installed everything new, did all the updates and patches. I get the ...
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2answers
114 views

How to securely download a new kernel?

I want to test a new kernel for my ubuntu. I want the most recent stable kernel available. How can I do it securely? That is, no http downloads.
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0answers
21 views

Ubuntu 18.04 LTS Live USB on HP ZBook 15 hangs while booting with kernel panic error: “A TPM error (7) occurred attempting to read a pcr value”

Ubuntu 18.04 LTS live USB on HP ZBook 15/1909 hangs while booting with kernel panic error: A TPM error (7) occurred attempting to read a pcr value Previously installed Ubuntu 16.04 worked perfectly ...
0
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1answer
57 views

How can Ubuntu become unresponsive when OOM without thrashing?

When I use too much RAM on my Ubuntu 18.10, the GUI freezes. It stops reacting to keyboard and mouse and there is nothing to do other than hard reset the computer. I believed that this was because ...
0
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1answer
38 views

Linux process scheduling [closed]

I've 2 questions related to process scheduling in Linux so let's start with the first one. Question 1 Consider a scenario where we have 2 CPU-bound processes in a run queue, one having the CPU for ...
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0answers
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Kernel startup delayed by 30s at “RC6 on”

My kernel log shows the following: Freitag, 10. Mai 2019 10:44:00 CEST [drm] RC6 on Freitag, 10. Mai 2019 10:44:31 CEST EXT4-fs (sda3) mounted filesystem with ordered data mode. Opts: (null) I ...
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0answers
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startup problems with hdd encryption after running recent updates

L.S. My pentium ibm pc with ubuntu 16.04 has been installed with hdd encryption. Decryption at startup worked fine until lately. Since the latest updates, including a kernel update, the problems ...
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1answer
19 views

VirtualBox installation message in Terminal: “this system is currently not set up to build kernel modules”

Full Terminal message: Image in a link to imgur i guess (AskUbuntu doesn't let me quote the whole thing here for some reason even though i tried to format it as the rules say.. so don't crucify me ...
0
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2answers
64 views

VirtualBox cannot be started, removed or reinstalled

I'm using VirtualBox 5.1 on Ubuntu 16.04 which recently stopped working, maybe due to recent updates. My kernel version is 4.15.0-48. When I try to type "virtualbox -v" in the command line, it's just ...
0
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1answer
297 views

Does Ubuntu have a Kernel Splash Screen? If so, how to enable it?

Hi I am creating a custom distro based off of Ubuntu 19.04 server. I am looking for a way to enable a custom kernel splash screen. Please let me know if this is possible, thanks.
1
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1answer
40 views

X graphical environment broken after kernel update on 18.04

After executing the ubuntu updates as already performed many times the X graphical environment does not boot anymore. The latest update installed kernel 4.15.0.48 in grub. When selecting an older ...
0
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0answers
26 views

Ubuntu machine OOPS while processing

I set up a new machine for ML purpose with Ubuntu 18.04: $ lsb_release -a LSB Version: core-9.20170808ubuntu1-noarch:security-9.20170808ubuntu1-noarch Distributor ID: Ubuntu Description: Ubuntu ...
0
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0answers
58 views

Dell 7490 system does not suspend correctly with Ubuntu 18 with any kernel

My problem is that suspend often does not work correctly in my Dell Latitude 7490 laptop. The OS seems to think that the computer went to suspend, but it does not, the power light keeps on and it ...
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0answers
15 views

Kernel Panic not syncing/Installation step failed [closed]

System Configuration:\ Motherboard: Asus H61-Mlx v-2.0 Processor: Intel Pentium(G630) Ram: 8GB Hard Disk: 500GB whenever trying to install Linux distribution(e.g Centos 7,Kali Linux-2019{64/32} on ...
0
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1answer
78 views

This system is currently not set up to build kernel modules. Please install the gcc make perl packages from your distribution

I am trying to Insert Guest Additions CD Image and then run VBoxLinuxAdditions.run I am new to Ubuntu and trying to learn. I am running Ubuntu 18.04LTS through Oracle VM v6.04r. My host laptop is ...
0
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1answer
85 views

How do I get the newest lowlatency-kernel on 18.04 LTS?

When installing the linux-lowlatency package on 18.04 LTS, the lowlatency-kernel version 4.15 is installed, while the -generic kernel has been updated to 4.18 since the LTS release. 4.18 linux-...
0
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1answer
60 views

Update the Kernel manually the way UKUU (Ubuntu Kernel Update Utility) does

I am Using Ubuntu 18.04.2 I have recently came to know about systemd-boot via https://askubuntu.com/a/1135735/739431 So, I dont have grub in my system. I am Using systemd-boot and happy with it.. I ...
0
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0answers
46 views

Why do I have to run “update-initramfs” every time I get the error “Kernel Panic - not syncing: VFS” after system update?

Whenever I update my system with Ubuntu base updates I get Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block, then I resolve the problem with update-initramfs followed by ...
3
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0answers
126 views

Kubuntu 19.04 Freezes Shortly After Startup or Loads Forever?

Recently, I've encountered a bug where the desktop freezes. The main suspect (From top and iotop) is a kworker: . The system starts normally, than completely freezes shortly thereafter (Like < 1 ...
0
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2answers
93 views

Nouveau driver issue : computer needs two consecutive boots to start

After installing indicator-cpufreq and running openssl speed together with turbostat, I needed two boots to start Ubuntu. So I removed it, but I had a "kernel panic" message at first boot and normal ...
0
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1answer
160 views

-Segmentation faults- with basic commands, kernel crash and files corrupted after reboot

I have a weird problem with my new computer. I have built a pc using new pieces, and a friend’s GPU. After installing successfully ubuntu 18.04.2 LTS on a 480GB SSD (with a UEFI partition), it worked ...
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0answers
22 views

Linux 4.14 crashes when the system is loaded

i am using linux 4.14 on imx8dx boards. i am trying to load the system. i am getting the log below. is it the expected behavior? root@imx8dx_ccu:~# dmesg [54565.689878] active_anon:98438 ...
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0answers
75 views

Mouse scroll needs 17 ticks to register 1 movement on fresh Ubuntu 19.04

This was not an issue with Ubuntu 18.04. When on Ubuntu 19.04 which I just installed fresh I noticed it even already using the LiveCD. I have only found this problem using Microsoft Standard Optical ...