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

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51 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
24 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
289 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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0answers
19 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 ...
2
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1answer
2k 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
30 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
153 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
109 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
8 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
13 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
14 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 ...
0
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1answer
48 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. ...
0
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1answer
144 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 ...
2
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1answer
17 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, ...
0
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1answer
189 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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1answer
26 views

How to to fetch kernel errors in Ubuntu..?

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
32 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 ...
0
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1answer
25 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 ...
0
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1answer
20 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
34 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 ...
1
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1answer
60 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
118 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
38 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. ...
0
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0answers
20 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 ...
0
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0answers
19 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
89 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 ...
0
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0answers
7 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
23 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
59 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
votes
1answer
300 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 ...
1
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1answer
56 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 ...
0
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1answer
27 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
14 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
49 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
18 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 ...
1
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1answer
54 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 ...
1
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0answers
29 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 ...
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2answers
53 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 ...
0
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1answer
56 views

Reinstall/fix ubuntu kernel

I have a problem with my Ubuntu installation. After the last reboot it seems Ubuntu is not loading all it's modules properly. The system doesn't see anything connected to usb, wifi, it seems keyboard ...
1
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1answer
91 views

Udevadm trigger is not permitted

I have Ubuntu 14.04 installed, yesterday i performed an update, but the update center froze for some reason, when i tried to reboot the pc, i was unable to and i got the following error message: ...
0
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0answers
86 views

How do I fix a vboxdrv setup failure in VirtualBox in dell inspiron 1440?

I use dell inspiron 1440.I am trying to install Virtual box but got some errors. To install virtualbox I downloaded one file i.e. "virtualbox-4.3_4.3.28-100309~Ubuntu~raring_amd64.deb" and used below ...
0
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0answers
6 views

Does the Linux Kernel support MobileIPv6 ?

I am working on MobileIPv6 and want to know if the Linux Kernel supports MobileIPv6 protocol? If yes, which version of the kernel? Also I want to know if there is a MobileIPv6 implementation similar ...
0
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1answer
24 views

How long do HWE kernels maintain/support in Ubuntu?

I tried 3.19.x.x.lts-vivid kernel and it doesn't seem to work with my hardware as I cannot build a module for my Nvidia graphic card and there are also similar bug reports submitted and confirmed to ...
0
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1answer
47 views

Which one is the latest upstream kernel?

I reported a bug on Ubuntu and now the person assigned to me is asking me to test the latest upstream kernel: could you please test the latest upstream kernel available from the very top line at ...
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0answers
20 views

How to Make Waltop Graphics tablet fully functional in ubuntu using digimend patches

I have Waltop Media Tablet 10.6” (Rebranded as Genius G-Pen M609X). The tablet works out of the box in ubuntu 14.10, but has only basic functionality. All the extra keys and scroll wheels are ...
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0answers
30 views

Rebuilt Kernel and now no WiFi listed by rfkill

Aloha, I installed Fedora 21 alongside my Ubuntu Kylin 14.04 and then downloaded the updates for ubuntu. It froze while finishing the update. The grub menu didn't include Fedora. I got a grub gui, ...
1
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1answer
49 views

Linux Crashes every time I word process [closed]

Linux crashes every time I word process. It doesn't matter if its a .doc, .docx or odt file. Doesn't matter if I'm using LibreOffice Writer, AbiWord, or IBM Symphony. It also does it when looking ...
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0answers
40 views

Is there anything wrong with this netconsole output?

Ubuntu 14.04 is crashing for me. My original question is here: Ubuntu 14.04 becomes unresponsive I ran netconsole to another machine and do not know if anything in the output may be causing the ...
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3answers
225 views

High System Load, Low CPU/RAM Utilization on Ubuntu 15.04

not really a system administrator here but really trying to just set up a server (a rented VDS, really) for some friends. I recently transferred basically game servers/MySQL/web sites over from one ...
0
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4answers
74 views

How do I remove linux-kernel-image 4.0.2 and install 3.*.* back?

I am not sure if kernel 4.0.3 started giving every time some errors but since I installed kernel 4.0.2, it shows many errors. How can I remove the recent kernel image and install the previous 3.. ...