Questions tagged [kernel]

Linux is the name of the kernel used in Ubuntu as well as other GNU/Linux operating systems. Use this tag for questions related to upgrading and installing kernels, compiling, patches, and kernel modules.

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What's coming in Ubuntu 18.04's 3rd point release

So,the WiFi driver on my system has a memory leak problem, known for a while. I'm running on 18.04.2 with HWE pack ergo Linux Kernel 4.18. Since memory leak issue is fixed in 4.20 or next version (5....
Prakhar Pal's user avatar
2 votes
1 answer
2k views

Problem installing VirtualBox and linux-headers-5.0.0-21-generic

I'm on Ubuntu 18.04.2 LTS and am having trouble installing VirtualBox: $ sudo apt install virtualbox Reading package lists... Done Building dependency tree Reading state information... Done ...
John's user avatar
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0 votes
1 answer
595 views

Broken Packages (No file found)

i have some broken packages, more specifically: linux-image-4.4.0-101-generic linux-image-extra-4.4.0-103-generic linux-image-4.4.0-103-generic linux-image-extra-4.4.0-104-generic linux-image-4....
Κωνσταντίνος Νικολεσκος's user avatar
1 vote
2 answers
2k views

Ubuntu Studio Nvidia drivers compatibility

I am currently using Mint on a machine that is configured as an audio workstation although it also does a wide variety of other tasks. I am thinking of trying Ubuntu Studio instead. I have read that ...
halfshavedyaks's user avatar
3 votes
1 answer
3k views

Kubuntu 18.10 and Kubuntu 19.04 - Grub Error: Couldn't find suitable memory target

When installing Kubuntu 18.10 and 19.04, I have run into the issue of seeing a grub error message "couldn't find suitable memory target" and then after the kernel starts there is kernel panic message ...
user973434's user avatar
0 votes
1 answer
846 views

Error is running windows 10 over the virtual box [duplicate]

Failed to open a session for the virtual machine Windows10. The virtual machine 'Windows10' has terminated unexpectedly during startup with exit code 1 (0x1). Result Code: NS_ERROR_FAILURE ...
Yanjan. Kaf.'s user avatar
3 votes
2 answers
27k views

Can't install rtl8192eu-linux-driver on UBUNTU 18.10

I am using UBUNTU 18.10 and I had problem with TL-WN822n v5 driver in UBUNTU and Kali (4.19.0-kali5-amd64) The problem is driver=rtl8xxxu so I found a driver in this page : https://github.com/Mange/...
Afshin's user avatar
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1 answer
1k views

Kernel tainted and attempted to kill init ubuntu 16.04.06

This is the image of what loads on my screen when I try I try to boot up ubuntu. I don't know how to fix this error. The Kernel is tainted, and I'm not able to fix anything at the moment because ...
Rishika's user avatar
1 vote
1 answer
124 views

The following error message appears when i run dpkg on linux ? What is the issus?

I used this command for removing the linux-image sudo dpkg --remove --force-remove-reinstreq linux-image-4.4.0-116-generic But it shows the following error message (Reading database ... 267739 ...
Arnab Thakuria's user avatar
1 vote
0 answers
103 views

How to add device aibs to kernel configuration file?

I have an asus laptop, which I have installed in Ubuntu 18.04, Everything works fine but the fans. They make a lot of noise and work always in maximum speed. So I have tried to work this out using ...
Abid.Saifeddine's user avatar
1 vote
1 answer
1k views

Why is a device file not created?

Upon insertion of a mass USB storage device like an external hard drive or a flash drive, dmesg -w notes its insertion but no corresponding file such as /dev/sda or /dev/sdb is created.
rigel's user avatar
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1 answer
2k views

kernel: INFO: rcu_sched self-detected stall on CPU on Allwinner H3, Ubuntu 16.04.6 LTS 4.14.52

I have NanoPi Duo2 board with Allwinner H3 and Ubuntu 16.04.6 LTS 4.14.52. After some time (from few hours to few days) it stuck: can be pinged, even connected by SSH, but freezes after entering ...
Fycbig Gycag's user avatar
-1 votes
2 answers
2k views

Not able to enable ktls while build OpenSSL3.0.0 on Ubuntu 16.04.1

I am trying to build Openssl-3.0.0 from master branch to use ktls feature on Ubuntu 16, but the build is skipping the ktls feature even though i am using Ubuntu 16.04.1 (Kernel version: 4.15) ...
sanat's user avatar
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1 vote
1 answer
450 views

Where to find Ubuntu change logs (esp the kernel)

Where can I find change logs for various parts of Ubuntu, especially the kernel? I've looked, and I can't find them. A Software Update dialog just popped up, with the 2nd "linux image" update in 2 ...
heynnema's user avatar
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2 votes
1 answer
4k views

Bluetooth keeps connecting and disconnecting

I am running Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-52-generic x86_64) and the bluetooth keeps connecting and disconnecting. When I enter bluetoothctl and have devices paired etc. I try to connect to ...
Ahmed.B's user avatar
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16 votes
5 answers
2k views

Can I run Ubuntu on something other than Linux Kernel?

I want to delete my Linux kernel but still want to run Ubuntu with GNU utilities. I don't like Linux; I only want GNU. So can I run Ubuntu and GNU on something other than Linux kernel?
user avatar
3 votes
1 answer
718 views

What did "sysctl vm" do?

My system: Linux/Lubuntu 18.04 LTS, 64 bit What I wanted to do was checking the value of my swappiness with the terminal-command sysctl vm.swappiness Out of sheer clumsiness I only typed sysctl ...
Rosika's user avatar
  • 575
0 votes
1 answer
1k views

Why an I2C device driver doesn't appear in /sys/bus/i2c/drivers?

Starting from an image ubuntu-18.04.2-preinstalled-server-arm64+raspi3.img.xz (https://wiki.ubuntu.com/ARM/RaspberryPi) I'm trying to add the ad525x_dpot I2C driver which was not enabled during the ...
Velkan's user avatar
  • 3,616
3 votes
1 answer
222 views

Regarding pcie bus error

I'm receiving PCIe bus errors in kern.log of version 16, 18 and 19 of Ubuntu when booting the system: kernel: [ 13.231617] pcieport 0000:00:1c.0: AER: Corrected error received: id=00e0 kernel: [ 13....
Durgamahesh Manne's user avatar
2 votes
1 answer
5k views

Install more packages with debootstrap

debootstrap is a tool which will install a Debian/Ubuntu base system into a subdirectory of another, already installed system. The installation log ends like this: . . . I: Validating xxd 2:8.1....
xpt's user avatar
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0 answers
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Ubuntu 16.04 partition doesn't boot after resizing

I hope you guys can help me because I'm beginning to be hopeless to find my data and all my work... I spent 2 days going through many forums to find a solution but nothing works. This is my problem: ...
S07's user avatar
  • 1
0 votes
0 answers
268 views

After upgrading my 18.04 LT to 4.15.-52-generic can't boot on LUKS encrypted LVM

After upgrading my 18.04 LTE to 4.15.-52-generic kernel modules I am not able to boot into my Desktop. My SSD is LUKS encrypted (LUKS partition on LVM). With the new kernel modules, it doesn't ask me ...
Thomas Uebel's user avatar
0 votes
0 answers
2k views

How to change threshold for 'watchdog: BUG: soft lockup - CPU#xx stuck for 23s!'?

Sometimes I can see this log if the system is in heavy loading. I would like to extend this threshold ( 23 seconds? ) persistently. Any way to setup it in grub or command line?
Mark's user avatar
  • 113
0 votes
0 answers
3k views

dkms apport error for Kernel 5.x

I'm not entirely sure what is happening here but I have not been able to update my kernel past 4.20. I've used Ukuu to update my kernels for a while, but when I try to do it with 5.x I receive this ...
Leonardo Petrucci's user avatar
7 votes
1 answer
5k views

Missing amdgpu firmware file named vega20_ta.bin | Kubuntu 19.04

Recently, after each upgrade I get these lines at the end of the process: Processing triggers for initramfs-tools (0.131ubuntu19) ... update-initramfs: Generating /boot/initrd.img-5.0.0-17-generic ...
Mostafa Ahangarha's user avatar
2 votes
0 answers
1k views

VirtualBox error on ubuntu 19.04: Kernel driver not installed (rc=-1908) [duplicate]

Kernel driver not installed (rc=-1908) The VirtualBox Linux kernel driver is either not loaded or not set up correctly. Please try setting it up again by executing '/sbin/vboxconfig' as root. ...
Roshan Kumar Thapa's user avatar
0 votes
1 answer
133 views

2 suspicious «non existent» tasks named 0000:06:00.0_di and 0000:06:00.0_ev. What are they?

In an UBUNTU 18.04 installation here are two suspicious «non existent» tasks named 0000:06:00.0_di and 0000:06:00.0_ev. Log indicates that a problematic pci 0000:06:00.0 exists, but still there is no ...
ilias iliadis's user avatar
1 vote
0 answers
49 views

How to list /find all driver files getting compiled while doing make?

Driver files getting compiled while doing make, is there any ways to list using the makefiles?
Ravi Shankar.G's user avatar
1 vote
0 answers
102 views

Boot stuck at this screen

This started after kernel update. I've tried this boot option: GRUB_CMDLINE_LINUX_DEFAULT="nomodeset" But it doesn't solve problem sometimes it doesn't work. I'm using Kubuntu 18.04, Kernel ...
Swapnil's user avatar
  • 853
1 vote
1 answer
136 views

16.04 kernel automatically rebuilding?

Does the kernel rebuild with apt update? Does the kernel rebuild with apt upgrade? As you can see the oldest kernel was built in Feb. of 2018. WHY is the kernel suddenly starting to rebuild as of Jan ...
unixprgrmr01's user avatar
0 votes
0 answers
555 views

"Kernel panic, VFs:unable to mount root fs on unknown block(0,0)" after ugrade to 18.04

In the past I used to be able to dual-boot Ubuntu 16.04 and Windows 10 on a SSD and it worked like a charm. Finishing upgrade to 18.04 ubuntu asked me to update grub which I did recklessly and ended ...
Heidar Tariverdi's user avatar
0 votes
2 answers
409 views

I don't get Linux kernel 5.x.x upgrades. I just get kernel 4.x.x upgrades

I use Ubuntu Studio 18.04.2 (with the additional support life through extra PPA backports). Some weeks ago I upgraded the Linux kernel from 4.x.x to 5.x.x But... I still receive upgrades of the 4.x....
Juan's user avatar
  • 1,787
3 votes
2 answers
1k views

How to check what is breaking automatic updates kernel when use apt upgrade or dist-upgrade?

My current system version is 18.04 LTS, ​​kernel 4.15.0-45-generic. Due to CVE-2019-11477, I want to update the kernel to the fixed version linux-image-4.15.0-52-generic. I tried sudo apt dist-upgrade ...
maP1E bluE's user avatar
2 votes
2 answers
5k views

Signing custom compiled kernel for Secure Boot

I am following steps given here to generate keys in order to sign a copy of kernel I compiled myself. However, midway through the process, when I try to verify that "the master certificate is signed ...
strNOcat's user avatar
  • 425
2 votes
1 answer
720 views

Stuck with obsolete kernel

My desktop was on the kernel 4.15.0-48-generic. Then in the middle of this May the system suggested to upgrade itself to the kernel 4.15.0-50-generic, and I said "OK". The upgrade was unsuccessful, ...
HEKTO's user avatar
  • 555
3 votes
1 answer
10k views

What is the complete procedure to update a kernel module currently in use?

I have a server 18.04 with custom ZFS kernel modules (0.8.x vs provided 0.7.x). Periodically, when I update the kernel, I have to recompile the ZFS kernel module, which otherwise would get ...
FarO's user avatar
  • 287
0 votes
1 answer
845 views

Power outage during apt-get upgrade broke apt-get commands

I have a server running Ubuntu 18.04 LTS. This morning I ran an apt upgrade and during it, the server lost power. Once it was restored, I logged in and noticed there were 2 packages "not fully ...
Alex's user avatar
  • 1
1 vote
0 answers
197 views

Where can one get Ubuntu-compatible linux-tools package for a new Linux kernel?

Various kernel builds for Ubuntu are available at the Ubuntu Kernel PPA. But only the following packages are included for each kernel at the PPA site: linux-headers-{kernel_version}... linux-image-{...
Michael Goldshteyn's user avatar
0 votes
1 answer
368 views

Ubuntu without setuid

Linux kernel supports setuid, setgid permission for executable binaries. Is it possible to build a kernel without these capabilities? Without these, administrators are the only users that can tamper ...
T. D. Nguyen's user avatar
2 votes
0 answers
216 views

Problem after packages upgrade

This morning I upgraded the following packages: libdevmapper1.02.1:amd64 (2:1.02.145-4.1ubuntu4, 2:1.02.145-4.1ubuntu4.1), libguestfs-hfsplus:amd64 (1:1.40.2-1ubuntu1, 1:1.40.2-1ubuntu1.1), ...
dariofac's user avatar
  • 1,042
2 votes
1 answer
3k views

Mount QNX filesystem in Ubuntu 18.04

I am trying to mount QNX6 filesystem in Ubuntu 18.04. For that I searched and found that I have to recompile my Linux kernel and enable CONFIG_QNX6FS_FS which I did and recompiled my kernel and all ...
ask's user avatar
  • 21
1 vote
1 answer
1k views

Sublevel version mismatch when trying to compile current kernel

I am trying to recompile the sound/usb module on Ubuntu 18.10 against the running kernel. I get no compilation errors but when I try to load the module I get this error: Invalid module format I am ...
Szőke Szabolcs's user avatar
1 vote
0 answers
29 views

Why linux kernel lights up the screen again before the machine's actually put to hibernation

When putting the machine to hibernation, the screen's like black -> light up -> black, after that the machine actually put to hibernation. I'm wondering why the kernel lights up the screen again ...
Hualet's user avatar
  • 11
1 vote
0 answers
251 views

Ubuntu 18.04 shutdown and other power/charging problems

Quite new to Ubuntu/Linux and just installed 18.04 (Bionic) onto my Windows 10 Netbook. 32-bit EFI/BIOS and 64-bit System, used a workaround, but installation wasn't a problem. The Netbook will not ...
davehor1's user avatar
0 votes
0 answers
438 views

Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-51-generic x86_64) freezes daily

I am running a headless Ubuntu 18.04.2 LTS Media Server. I upgraded it many moons ago from 16 and the server has been rock solid for a very long time. In the past month or so, the machine becomes ...
WT9BIND's user avatar
2 votes
2 answers
22k views

Unknown symbol in module but what symbol?

I compile a driver following the documentations. But when I try loading them via insmod onebox_wlan_nongpl.ko , I receive an error message: insmod: Error: could not insert module ...
alex's user avatar
  • 61
2 votes
2 answers
4k views

Problems installing a TL-WN881ND driver on Ubuntu 18.04

I've been trying to install a driver for my TL-WN881ND network card on Ubuntu 18.04.2 to connect to the internet with it, and I keep crashing into errors. Here's what I get when I type make: "NO KSRC,...
Cobradabest's user avatar
3 votes
1 answer
5k views

Random system hang when booting Ubuntu 19.04 with kernel 5.0.0

I have been experiencing a few problems with my Ubuntu system (19.04) lately. I think it is related to the way the graphics interface is handled by kernel 5.0.0. My computer is an Asus ZenBook 13 (...
FichelMoucault's user avatar
1 vote
0 answers
759 views

Not enough memory if using UEFI

When attempting to install Ubuntu, Kubuntu, or really any flavour of Ubuntu 19.04, I get to the Grub prompt like normal, but the minute I choose a kernel to boot, I get the message "Not enough memory" ...
Ishayu's user avatar
  • 46
3 votes
2 answers
12k views

Ubuntu 18.04 Kernel (5.0.13) cpupower does not run

I am using the Lenovo Thinkpad e490. I installed dual-boot with Windows, but I had a couple of issues so I updated my Kernel to 5.0.13 (I read in a forum that this version fixes some problems, but ...
Paul_W's user avatar
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