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

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108 views

14.04 64x “Kernel panic - not syncing: Attempted to kill init! exitcode 0x000000100”

After a power outage (unplanned shutdown), attempts to reboot Ubuntu Studio 14.04 are greeted with the subject line. Additional lines include; CPU: 7 PID 1 Comm: run-init Not tainted ...
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1answer
430 views

Virtualbox 4.3.26 dkms will not install properly on Linux kernel 4.1

Hello I have a Toshiba Portege r930 with 8 GB of RAM, 320 GB HDD, and core i3 processor running Ubuntu 15.04. On kernel 4.0.5 my Virtualbox dkms works fine and the virtul machines start up correctly ...
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35 views

Will not boot normally or into recovery

Newbie here. Yesterday I put Ubuntu onto my laptop. Most things were working fine, except the shutdown command would not power off the device. Today, it will not boot normally or into recovery. Normal ...
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1answer
218 views

Kernel upgrade lubuntu 14.04

How often does system upgrades the kernel? Should I do it manually? I have ubuntu 14.04.2 and it has kernel version 3.16, and lubuntu from minimal install 14.04.2 with kernel 3.13, so I wondered why ...
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13 views

Debugging 14.04 freeze with syslog

Since upgrading to 14.04 a few weeks back, I have been experiencing a problem wherein Ubuntu will freeze (i.e. the entire UI stops working, can't drop down runlevels, etc.), and the only solution is ...
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18 views

Linux Kernel and drivers [duplicate]

Does the kernel have every driver software built in or does it have to identify the platform it's running on and source the relevant drivers from the internet? The reason why I ask is that I have ...
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1answer
70 views

Cannot login ubuntu 15.04

I've got a problem logging into my user from the graphical start screen. When I write my password there is som flicker and some error messages on the screen before it returns to login again.This ...
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1answer
403 views

Cleaning old kernels does not work

I am a new Ubuntu user, so please have patience. It all started when my /root partition became full. It was obviously too small and I will have to resize. I tried to remove kernels using Synaptic and ...
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138 views

Regarding installation difficulties on a new Dell Inspiron 3451

I recently ordered a Dell Inspiron 3451 (see here and here), and after booting it up once with the pre-installed 14.04 I realized that I wanted to replace the Dell-laced version with a clean, vanilla ...
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0answers
17 views

During startup, why does my computer reboot before or shortly after the Desktop appears?

I think it may be a virus in the system area because I scanned the 'Home' folder with both ClamTk and Comodo with updated AV databases and found no culprit. But when I choose 'Advanced Options' from ...
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0answers
72 views

Error using apt-get

Hi I am getting an error whenever I use using apt-get. For example, when I try sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done ...
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1answer
64 views

Kernel update today didn't need password?

I'm here to ask about today's kernel update. Few days ago (June 15) I updated Ubuntu's kernel to 3.13.0-55. But strangely, today when I searched for updates, Ubuntu told me to install the same ...
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0answers
65 views

Linux Kernel acting weirdly

This probably is a bug, but I am not sure, that's why I'm posting this here. I am running Ubuntu 14.04 using Linux Kernel 3.13.0-55-generic on Dual Boot with Win 8.1 on a Lenovo Z510. Lately the ...
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0answers
50 views

CPU usage becomes extremely high after opening laptop lid after upgrading to kernel 3.19

So I recently upgraded my kernel to 3.19, and now, whenever I close my laptop's lid and re-open it, the CPU usage will spike to ~75% on all four cores of my CPU. However, Activity Monitor doesn't list ...
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2answers
689 views

Docker daemon no longer start with kernel 3.19.0-21

On Tuesday this week, I received a Kernel update from 3.19.0-20 to 3.19.0-21 on my laptop (Latitude E6520). At reboot I had kernel panics, so I picked 3.19.0-20 from the boot menu and all was well for ...
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33 views

Trouble booting after each kernel update

For some days now I have trouble booting after updating the kernel. I'm using UEFI without secure boot. Until 3.19.0-18 it all worked fine. When upgrading to 3.19.0.20 the system did not boot with ...
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1answer
3k views

Will Leap Second 2015 affect our servers?

We are using Ubuntu 12.04 and ubuntu 14.04 servers. These servers using default time settings and we have not installed ntp in these servers. Ubuntu 14.04 root@ubuntu14:~# uname -a Linux ubuntu14 ...
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1answer
39 views

What does the fourth number in the release version mean?

On Ubuntu, the string returned by uname -r is always of the form x.y.0-z-generic (i.e., 3.19.0-21-generic). Compiling Ubuntu's kernel ends up with a string that is of the form x.y.z (i.e., 3.19.8), ...
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0answers
356 views

Failed to start Load Kernel Modules after Nvidia 352.21 installation failure

After booting up Ubuntu 15.04 I get the following message: [FAILED] Failed to start Load Kernel Modules. See "systemctl status systemd-modules-load.service" for details. At terminal I get the ...
2
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1answer
219 views

DKMS: Install Failed

Every time I upgrade the system and there is an update to the kernel I see the following error in the APT logs: run-parts: executing /etc/kernel/postinst.d/dkms 3.13.0-55-generic ...
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0answers
20 views

permanent disabling ip_forward for ubuntu server happens be a problem

I have just installed the latest ubuntu server. This is the state of my server right after booting: root@vzu01-ubuntu:~# uname -a Linux vzu01-ubuntu 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan ...
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0answers
27 views

VirtualBox hangs machine in vivid

I have a setup with 5-6 virtual machines in vivid. Running the latest version of virtualbox and the kernel (it appears a number of previous version also show the same problem). When I start some ...
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0answers
25 views

CPU usage spikes to 75% and stay there after resuming from sleep mode?

So I recently upgraded my kernel to 3.19 (as part of a failed GNOME install that I have since undone), and now, whenever I close my laptop's lid and reopen it, CPU usage will spike after to minute or ...
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1answer
61 views

Two 14.04.2 LTS installations, different kernel versions?

I have two installations of Ubuntu server 14.04.2 LTS, both installed from the same media (I just checked - the DVD used for both is still on the drive of one of them), but a couple of months apart. ...
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1answer
257 views

Why is installing the latest Linux kernel for Ubuntu taking so long?

I ran the software updater, which updated Ubuntu base on 32 bit 15.04, which as I understand it includes the Linux kernel and it was taking so long (after several hours it still hadn't finished) I ...
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1answer
31 views

How to install perfmon2 on ubuntu?

i want to install performer counter on Ubuntu. http://sourceforge.net/p/perfmon2/libpfm4/ci/master/tree/ this source has all the steps, as i am the new user, every time i try to implement the steps, ...
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1answer
322 views

Stop updating old kernel [duplicate]

I'm running version 4 of the Kernel on Ubuntu 15.04 but I keep getting updates from 3.19. How can I prevent it checking for updates for this older kernel?
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2answers
38 views

How to to fetch kernel errors in Ubuntu..? [closed]

I a trying to make an alert e-mail system using Perl Script, when a kernel error occurs in a server. How can I fetch serious error logs from the kernel? Logs can be seen in /var/log/kern.log The ...
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0answers
77 views

boot repair is unable to reinstall kernel on mapper/…root

Here is the Boot Info of boot repair... http://paste.ubuntu.com/11721228/ Boot repair never ends and remains by step 'purge kernel and reinstall last kernel mapper/ubuntu--vg-root (ins)' What can I ...
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1answer
43 views

Grub does not show up at start, cannot select older kernel

I just built a newer kernel and tried to install it. I use a script (which I have successfully used before) to that effect. Now the kernel won't start. It shows: Loading Linux <my version ...
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1answer
34 views

Connect kernel image (bzImage) running on qemu to network

I have a kernel 3.2.0 bzImage compiled which I am running on a qemu emulator, now I want to download linux headers to the kernel image so I can compile modules within it but I am unable to connect to ...
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0answers
63 views

CPU hard lockup with Ubuntu 14.04 server on AMD machine

I have the following workstation configuration with 64 cores: 4x AMD Athlon 6378 2.4GhZ 128 GB Ram Supermicro motherboard H8QGI-F-O 2 x 512 GB SDD Samsung with software RAID-0 setup I am running ...
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1answer
77 views

Ubuntu freezes without doing anything

I just started Ubuntu and after a minute it froze. Nothing works, mouse, terminal, GUI, nothing. How am I supposed to solve this problem which I have never faced before? This is the error message ...
3
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1answer
667 views

Ubuntu 14.04 with 3.19 Kernel Wants to Update to 3.16

I recently updated my kernel to 3.19.0 to resolve some issues with a Dell XPS 9394 ('15), and things are mostly working well, though now software update looks like it wants to download and install ...
1
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1answer
59 views

No hardware events in perf list on PC w/ Intel Core i7-4770 CPU running Ubuntu Server?

I have dell desktop with Intel Core i7-4770 @ 3.4GHz CPU. There, I have installed Ubuntu server 15.04. Afterwards I have install linux-tools-generic and linux-tools-common to install perf tools. ...
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0answers
24 views

Boot volume space [duplicate]

I am using Ubuntu 14.04, and need to create more memory space by deleting older kernels. I have tried several suggestions on the subject, but none have produced any results - boot volume still stays ...
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0answers
44 views

How do I fix the End kernel panic error?

so yesterday I tried virtual box out for the first time(so I’m new with this subject) and I tried to install Ubuntu on it but every time i try to boot it, I first get a purple screen, then I get a ...
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3answers
220 views

Boot partition full, failing to delete old kernels. Broken packages

Sorry for asking about what is probably really simple, but I've been Googling about for a week now and I've tried a lot of stuff without success. To start off, I get a pop-up every time I boot saying ...
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0answers
10 views

Trying to install Unbuntu but I get this error kernel panic : VFS

I'm trying to install Ubuntu for the first time (Any Linux OS to be clear) and I am getting this error: Kernal panic : VFS Unable to mount root fs on unkown-block(2.0)
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0answers
33 views

3.16.0-39 and 13.16.0-38 cause my computer to reboot into Asus express gate. Ubuntu 14.04

I recently bought a new hard drive because of corrupted data on my last hard drive related to SATA errors. That is another story (I hope). My new hard drive was working fine running a fresh install ...
0
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1answer
120 views

In ubuntu 15.04, boot-repair running forever

To reproduce my problem [of accidentally deleting all the kernels] Delete all the kernels Try to fix the problem with boot-repair from live USB LVM enabled Pastepin link is here Please help me ...
2
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1answer
461 views

Upgraded to Ubuntu 15.04 from 14.10, got the dreaded “starting version 219” error

When I try to login, it reverts me to the login screen. If I move my mouse, it shows a log of system events and then does the same thing. I can Clrl + Alt + F1 to a terminal, and do modifications from ...
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1answer
69 views

Are Device Drivers integrated in the Kernel?

I know that the kernel uses device drivers to interact with hardware. But laptops for example come with all kind of hardware configurations. Yet, after installing Linux, somehow the kernel manages to ...
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1answer
40 views

Broken links after kernel upgrade

After running: sudo apt-get update && sudo apt-get dist-upgrade And upgrading my kernel as well as some other stuff and then running this twice with a reboot after each running: sudo ...
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0answers
37 views

edid firmware parameters for multiple monitors

I need some help with drm_kms_helper.edid_firmware kernel parameter. I have two edid firmwares, and I'm trying to set them using kernel parameters: ... quiet splash ...
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0answers
80 views

regarding installation of installation of linux kernel 4.0.4 in ubuntu 14.04 LTS

I have installed linux kernel 4.0.4 in Ubuntu 14.04. I compiled this kernel done all the steps,but on rebooting it gives the error shown below. Any suggestion to resolve that problem?
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2answers
22 views

Ubuntu halts after few seconds of starting and nothing works command, virtual terminal, GUI

I installed ubuntu and after a fresh restart the sysyem goes to halt. It shows following error in the virtual terminal [484.269470] EXT4-fs error (device sda1): ext4_find_entry:1309: inode ...
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2answers
172 views

MPTCP installation and configuration on Ubuntu 14.04.2 LTS

I'm trying to install MPTCP (Multipath TCP) on my Ubuntu but I have a problem : I follow instructions under this link : http://multipath-tcp.org/pmwiki.php/Users/AptRepository I have no problem on ...
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0answers
49 views

MacBook Pro 11,1 Magsafe connector gets hot

I've installed Ubuntu 14.04 on my Macbook Pro 11,1 and updated the kernel to version 3.19.8. I have a problem now. If I plug in the Magsafe connector the connector and the surroundings on the macbook ...
2
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2answers
166 views

Linux kernel and headers do not install on a VPS system

At this point all I'm trying to do is update my headers on fresh Ubuntu 14.04: root@invoke:~# uname -a Linux invoke 2.6.32-042stab094.7 #1 SMP Wed Oct 22 12:43:21 MSK 2014 x86_64 x86_64 x86_64 ...