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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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Virtualbox won't start the VM

I have an issue with virtualbox on Ubuntu 18.4 . It won't start my windows VM. When I try to start the VM this shows up: The virtual machine 'Windows 10' has terminated unexpectedly during startup ...
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dpkg: unrecoverable fatal error, aborting: reading files list for package 'linux-headers-4.15.0-34-generic': Input/output error

I am trying to install nodejs on my Ubuntu machine - sudo apt install nodejs but I am getting following error Reading package lists... Done Building dependency tree Reading state information......
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Updating task descriptor of a process

I have to add a new variable to process control block of a process, which is the structure task_struct. However, some resources say that it must be added at the end of the struct, but they do not say ...
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Installing RTAI 5.0 with linux kernel 3.18.20 in Linux 18.04 LTS

I tried to use the command make or make -j `getconf _NPROCESSORS_ONLN` deb-pkg LOCALVERSION=-rtai I got the following error - CHK include/config/kernel.release CHK include/generated/...
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0answers
13 views

grub: you need to load kernel but cant'find it

After making some mistakes on my server the system got stuck in grub rescue. After running the following commands in grub rescue grub2 prompts up. set root=(hd0,1) set prefix=(hd0,1)/usr/lib/grub ...
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1answer
52 views

Ubuntu CPU utilization 100% even when RAM is at 25% and cache is cleared [on hold]

I'm trying to test my SSD (1TB) and doing a random/sequential write into the entire disk. During the operation, after, say ~15 mins, the CPU utilization goes nearing 99% and sometimes even touches 100%...
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36 views

Kernel panic at boot and many programs segfault / core dump

Today I booted up an Ubuntu computer I last used when it was working fine 2 weeks ago, and now every kernel I have (4.15.x and 4.13.x) panics at the beginning of boot, including in recovery mode. I ...
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1answer
50 views

lubuntu 14.04.5 kernel compile error

I have tried compile kernel with no changes and it returned error: arch/x86/boot/compressed/head_32.o: In function `efi32_config': (.data+0x58): undefined reference to `efi_call_phys' make[3]: *** [...
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2answers
110 views
+50

How to make an USB Ubuntu installation more compatible with different computers?

I always have a keychain USB-drive with me and noticed a while back that Ubuntu can easily be installed on it. I've successfully used this drive to test other people's hardware for them and copy files ...
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21 views

Unable to use livepatch on new Ubuntu 18.04 instance on AWS

I just tried to install livepatch on my EC2 Ubuntu 18.04 LTS instance running on AWS. Here's the error message I got: 2018/10/12 15:24:29 cannot use livepatch: your kernel "4.15.0-1021-aws" is not ...
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1answer
58 views

How to compile Linux kernel module: printk missing?

So I'm trying to compile a simple kernel module on Ubuntu 18.04, kernel 4-15.32 generic: #define MODULE #include <linux/module.h> #include <linux/kernel.h> int init_module(void){ ...
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36 views

Asus Rog Strix 17 GL703GE acpi, touchpad, shutdown/reboot,lspci issue

I have a Asus rog Strix 17 GL703GE laptop with KDE Neon. I'm using the last kernel's version in the repository. 4.15.0-36-generic Nevertheless i have the following problems: Acpi errors lspci ...
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0answers
18 views

zram zstd support in 18.04

On ubuntu 18.04 I would like to use zram zstd compression but it is not available as it should be available in kernel 4.15.0-36-generic? As I understand it is a kernel compilation bug as described ...
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0answers
18 views

How to send Kernel name in udev rules?

I want to do is auto mount every usb-drive to static path. But when I send kernel name with %k to shell script it returns like 1-3, 2-4 ... not sdc1, sdd1... s[b-z][1-9] this is my udev rules 10-...
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0answers
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Copy to CIFS share locks machine - any clues from kernel stack trace?

I've got an XPS13 (9343) running Ubuntu 18.04 with gnome shell. I mount two CIFS network shares (which reside on a Debian server) and recently I have been running into problems with the system ...
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20 views

Can I boost the HDMI signal on an Intel UHD620?

I have a problem with my laptop which I suspect to be caused by lack of signal strength on the HDMI port. When I connect the laptop to an external device via HDMI, that external device might blank for ...
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2answers
37 views

CUDA 9.1 install on Ubuntu 18.04 on an online Google VM

When I try to install the NVIDIA driver, I run this command: sudo bash cuda_9.1.85_387.26_linux --verbose --override --kernel- source-path=/usr/src/linux-source-4.15.0 ...and it tells me that it ...
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33 views

ubuntu package update: /etc/kernel/header_postinst.d/dkms missing

I'm just doing my usual weekly update of packages on my Ubuntu machines, and Something Went Wrong (TM). I'm seeing this in the output of "sudo apt upgrade" Setting up linux-headers-4.15.0-36-...
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1answer
890 views

DELL XPS 13 with ubuntu 18.04 Suspend Freezes

Under Ubuntu and any kernel, 4.x Laptop become unresponsive with a black screen after any suspend event (lid closed, suspend command, etc) I just bought the new XPS Signature Edition 13 and installed ...
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1answer
37 views

System almost freezes when memory full

I have tested with zram or physical swap on SSD. When memory usage is very high, for example a memory leak, the system starts to swap. At this moment, top shows 10% IO wait, 20% CPU per kswapd. But ...
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25 views

Kernel panic when booting Ubuntu 16.04

I have a dual boot of Ubuntu 16.04 alongside Windows 7. I am getting this kernel panic message when booting Ubuntu 16.04: kernel panic - not syncing: No init found. Try passing init = option to ...
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1answer
50 views

How do I update to the latest mainline kernel on a server?

I'd like to keep an Ubuntu Server 18.04 up to date with the latest mainline kernel. On the desktop I'd just use Ukuu, but I'm looking for a convenient method to use via ssh. I found this: http://...
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1answer
50 views

vmlinuz-4.18.12-041812-generic has invalid signature

I upgraded my kernel today with ukuu, and since then I cant boot because i'm getting this errors: error: /boot/vmlinuz-4.18.12-041812-generic has invalid signature error: you need to load the kernel ...
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Compiling the kernel with compiled GCC

My question is after I compile GCC && after I type in make install (for GCC) how can I compile the linux kernel (stable) with the new GCC? Can you be specific it may sound like I know what i'...
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How do I figure out which package is causing my black screen issues?

I am getting a black screen on different linux distributions (Ubuntu 18.04, Kubuntu 18.04, Manjaro GNOME 17.1.12) as long as only one monitor is enabled and connected. When 2 monitors are connected ...
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0answers
18 views

Ubuntu 18.04 rtl8812au stops after a few hours

I think I have too much loaded ac1200 works for a while then stops.. here is what I get ... $ dmesg | grep 8812au [ 13.820591] 8812au: loading out-of-tree module taints kernel. [ 13.821569] ...
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0answers
48 views

Need help for Kernel Panic on fresh install of Ubuntu 18.04 [on hold]

I got this when I tried to install a fresh copy of Ubuntu 18.04: Can someone help me with this?
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0answers
20 views

Intel glk_dmc_ver1_04.bin module failed to load

I have just upgraded my 18.04 to newest kernel 4.15.0-36-generic. After the update i get a load error for the module dmesg | grep failed: i915 0000:00:02.0: Direct firmware load for i915/...
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1answer
83 views

linux-image-4.15.0-36* reduces the speed of rsync over ssh to 10 times less [closed]

With kernel version 4.15.0.36, the speed of rsync over ssh gets reduced to around 10 times less than with 4.15.0.34. Is this a regression? On 4.15.34, everything works as expected. If I go back to 4....
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Wifi Driver and additional drivers issue with Ubuntu 18.04.1

A few days ago I updated my UBUNTU 16.04 version with 18.04.1 But after that, my wifi stopped working on my laptop. I'm using Acer E515 laptop and my wireless card manufacturer is Qualcomm. I also ...
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0answers
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Ubuntu kernel update password doesn't do anything

Over the past few months, every time a new Ubuntu kernel is installed through Software Updates, the process asks for a password to be created. The screen suggests that on reboot I will be asked to use ...
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1answer
41 views

Transfer to swap the memory data of idle software running in background while keeping in RAM only active ones?

While running 5-6 programs at the same time (Browser, Virtual Machines, Terminal, Text Editor, File Explorer), some of them from time to time (let's say every 15 minutes) are inactive/idle (not ...
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1answer
60 views

Kernel Panic - Not Syncing : Attempted to Kill init?

After I removed my RAM, I got the following error: Kernel Panic - Not Syncing : Attempted to Kill init ! So I checked it a lot of times and it's working, but my Windows can't login and shows me a ...
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1answer
54 views

Has anyone built and installed a kernel for Ubuntu 18.04.1 LTS?

Has anyone: Successfully downloaded the kernel source? Successfully installed a built kernel without it crashing on startup? For Ubuntu 18.04.1? I managed to use synaptic to get linux-source ...
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1answer
122 views

Unable to lock the administration directory - DPKG configure stuck on initramfs

I have problems with apt: E: Unable to lock the administration directory /var/lib/dpkg/lock E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? I followed ...
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1answer
28 views

System gets unresponsive for 1-2 seconds every 10 seconds

I recently connected my (a littler bit older) notebook to 2 external screens, so i can work properly from home. But for some unknown reason the system acts super weird. Every 10 secods (Ubuntu 16.04 /...
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1answer
17 views

How to blacklist amdgpu driver?

I have found that amdgpu driver is disturbing in suspend. I want to uninstall or blacklist it. How to blacklist amdgpu?
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111 views

Problems after updating to kernel 4.18.11 on Ubuntu 16.04

I had some problems updating, but managed to get it done with ukuu. However, I still have some dependency errors, so sudo apt-get upgradegives me linux-headers-4.18.11-041811-generic : Depends: ...
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1answer
444 views

Ubuntu 18.04.1 kernel upgrade stuck at setting up linux-headers-4.15.0-36-generic

I am trying to upgrade kernel on my laptop and as I'm doing that very often I never had an issue until last time when I was able to fix the issue with running: sudo dpkg --configure --pending As ...
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1answer
78 views

“Unknown sequence editconfigs” when trying to build a kernel

I am following the instructions here: https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel I ran apt-get source linux-image-$(uname -r) cd linux-signed-4.15.0 chmod a+x debian/rules chmod a+x debian/...
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0answers
25 views

Broadcom BCM5764M Gig-E kernel driver problem on Server 18.04.1 LTS

Just installed Ubuntu Server on a Dell FX160 thin client. Everything seems to be working except for the onboard Gigabit Ethernet. The problem appears to be with a bug in the tg3 driver. I can verify ...
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0answers
73 views

system is currently not set up to build kernel modules

when I tried to run the following command # /sbin/vboxconfig I got the following vboxdrv.sh: Stopping VirtualBox services. vboxdrv.sh: Starting VirtualBox services. vboxdrv.sh: Building VirtualBox ...
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3answers
143 views

How to install Ubuntu on ASUS F556U, JournalError error?

I'm trying to install Ubuntu 18.04 on my ASUS F556U laptop without success. I already asked other questions on the subject, thinking that the problems were by UEFI mode. Well surpassed that, I already ...
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2answers
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How do I fix a ASUS Eee PC to run Ubuntu 18.04 with “This kernel requires an x86-64 CPU, but only detected an i686 CPU”? [duplicate]

My son has an Eee PC and he tried to turn it into a Chromebook. It did not work and the computer is stuck on trying to load chromium. I asked an IT Tech at our school how to fix it. He suggested ...
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1answer
37 views

Ubuntu 18.04 PXE-booting with Realtek r8152-based NIC, no interface found

I am upgrading my PXE boot infrastructure with 18.04, but I am running into a consistent problem with our Dell XPSen - when PXE-booting from the official Dell FM76N (Realtek r8152-based) USB NICs, the ...
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1answer
28 views

ps -ef displays kerneloops - is that harmful?

When I type: ps -ef | grep test I get the following output kernoops 998 1 0 18:15 ? 00:00:00 /usr/sbin/kerneloops --test First of all is this harmful. If it is how can I debug what ...
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0answers
29 views

Change built in module to loadable module

On Ubuntu, ehci-hcd is a built-in module, I want to change this to a loadable kernel module. # grep ehci /lib/modules/$(uname -r)/modules.builtin kernel/drivers/usb/host/ehci-hcd.ko I tried ...
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14 views

read and write on solaris partition 8 [closed]

I would like to know how to enable reading and writing on Solaris 8 partition. I have some saved files that I want to put in the hard driver with Solaris compatibility, I would like to do it for ...
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2answers
98 views

Usbmon error - Ubuntu 16.04 with Kernel 4.15 in Dual Boot with Windows 10

I have some problem in Ubuntu 16.04 LTS with kernel 4.15 in Dual Boot with Windows 10, with a Lenovo T480. I am trying to get some information from /sys/kernel/debug/usb/usbmon/, but I have some ...
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0answers
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HP envy x360 - Ubuntu 18.04 - hardware issues

I have an HP ENVY x360 Convertible 15-bq1xx and I've installed Ubuntu 18.04 and keep it updated. I have the following problems: The touchscreen doesn't work What I've found: touchscreen-on-hp-envy-...