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

learn more… | top users | synonyms (4)

0
votes
0answers
3 views

Problem booting on the latest kernel (3.16.0-34)

I boot on linux kernel 3.16.0-34 atm. The machine just won't boot on later kernel versions. When I do, i get an error message on the desktop. I assume the reason I can't boot on the latest kernel is ...
0
votes
1answer
10 views

Unable to update kernel

I kept getting a kernel panic (not syncing. No init found) trying to boot my Ubuntu Server, so I burned the latest version of Ubuntu Server to a CD and booted (used option boot to fist disk) to try ...
0
votes
0answers
9 views

How can I allow *any* user to write files `/sys/kernel/debug/…`?

How can I allow any user to write files /sys/kernel/debug/...? While creating a debugfs file, I realized that only root on my ubuntu machine can access the debugfs files in /sys/kernel/debug/..., even ...
0
votes
0answers
14 views

Ubuntu Live CD with /dev/nvram available

Is there any way to make /dev/nvram available when running from the Live CD? It says on the manpage for the nvram driver that it has to be compiled into the kernel. Is it possible to do that while ...
2
votes
0answers
9 views

Debugging kernel running on AMD target from Intel host - how to return control to gdb?

I have compiled kernel 3.13.0-55 on Ubuntu on both AMD and Intel machines. I tried to copy compiled kernel to Intel target but it won't boot with that one. Therefore I have compiled the same version ...
0
votes
0answers
16 views

Update to 13.10 on USB drive causes kernel panic

Apologies if this has been answered already, but I couldn't find anything relevant. I run Ubuntu 13.10 on an external USB drive and it has been running happily (with several updates) for some time. ...
0
votes
0answers
10 views

Can't boot to new kernel, error processing package linux-image-extra-3.13.0-57-generic

Yesterday I installed the updates ubuntu presented me and now I can't boot in to the most recent kernel anymore, linux-image-extra-3.13.0-57-generic. Starting up immediately causes a kernel panic and ...
0
votes
0answers
14 views

How do I compile and install a change made to a kernel source file?

I was to apply a patch to config.c file in the drivers/usb/core directory. Specifically, I'm trying to fix the issue detailed in this post. I'm running Ubuntu 15.04 with the 3.19 kernel, a stock ...
0
votes
0answers
6 views

How to get out of grub after failed update, WITHOUT a cd reader

I tried to install the new version of ubuntu. It took a long time and i let it go on while i slept. When i woke up there was a black screen with commands saying something about the battery. I tried ...
0
votes
0answers
31 views

Ubuntu 14.04 Kernel 4.1.0devel install panic

I am trying to install kernel 4.1.0devel on Ubuntu 14.04. Machine works fine for default kernel 3.16.0-30-generic. I did the following for compiling and installing the kernel: download the source ...
0
votes
1answer
34 views

Access Encrypted Home Folder

Something happened to my laptop recently and whenever I booted it up, it freezes and my cap locks button blinks. I did a little googling on this and it appears that it is caused due to a kernel panic. ...
0
votes
0answers
11 views

Rebuild only kernel image without modules

i want to rebuild the running kernel with a very simple change (suppose only a printk). I would avoid to rebuild all modules, and simply update kernel image in /boot. Here my steps: $ sudo apt-get ...
0
votes
3answers
43 views

Old kernel version still running after several updates

Currently running 3.11.0-18, but many other later versions are installed. For some reason the updates aren't getting selected for grub: $ uname -r 3.11.0-18-generic Listing kernels: $ sudo ...
0
votes
0answers
20 views

Load newer Kernel module over older build in one on start

I am using the Intel 82579LM network card, for which there is a newer driver available on the Intel driver site. Installing the driver is no problem and after manually removing the kernel module from ...
0
votes
0answers
23 views

Error after installing new kernel

After installing a new kernel virtual box stoped working and all the solutions to try to fix it return the error. Errors were encountered while processing: linux-image-3.13.0-55-generic ...
1
vote
0answers
10 views

Reinstall an official package when custom one has overwritten it

I recently installed the Debian packages produced by running make deb-pkg to compile my own version of the Ubuntu kernel. I had given the kernel the release version 3.19.0-21-secure. All of the ...
0
votes
2answers
34 views

Cannot Get VMWare workstation to run in Ubuntu 15.04

Hi all Below is a link to the pastebin that contains the tail of the error log produced by VMware Workstation 11. Questions related to this topic are for Specific versions previous versions of linux. ...
2
votes
0answers
31 views

How to upgrade the kernel of Xubuntu 15.04 Live CD to latest 4.1/4.0.6 version?

I am trying to upgrade the kernel of Xubuntu 15.04 AMD64 live CD to the latest version available (4.1/4.0.6) so that I can try and install the same on hitherto unsupported hardware. I am using the ...
1
vote
1answer
34 views

Kernel source package for 3.16 in Ubuntu 14.04.2

I installed Ubuntu 14.04.2 with kernel 3.16.0-41. I was looking for the kernel source but the kernel-source metapackage is pointing at 3.13 and I can't see any source packages refering to 3.16. What ...
1
vote
1answer
36 views

Not using newer kernel version - Any real problems with it?

I have been searching for the answer of this question, but I couldn't find. I know I can upgrade the kernel version to the newer one, but it seems that a lot of people had problems after installing ...
0
votes
1answer
14 views

Ubuntu 14.04Broadcomm 43142 wifi problem on HP p-011tx

Ubuntu 14.04 does not show wifi connection after new installation. Device is:HP p011tx Broadcomm 43142 802.11 adapter
0
votes
0answers
36 views

Having an issue removing old Kernels

I've gotten myself into some sort of infinite loop. My boot partition is full and so I'm trying to delete old packages. When I try this is what I get: You might want to run 'apt-get -f install' to ...
0
votes
0answers
34 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 ...
0
votes
1answer
110 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 ...
0
votes
0answers
19 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 ...
0
votes
1answer
51 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 ...
0
votes
0answers
11 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 ...
0
votes
0answers
16 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 ...
0
votes
1answer
30 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 ...
2
votes
1answer
138 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 ...
0
votes
0answers
31 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 ...
0
votes
0answers
10 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 ...
0
votes
0answers
38 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 ...
0
votes
1answer
56 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 ...
1
vote
0answers
49 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 ...
0
votes
0answers
20 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 ...
1
vote
1answer
219 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 ...
0
votes
0answers
17 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
votes
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 ...
3
votes
1answer
26 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), ...
0
votes
0answers
130 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 ...
1
vote
1answer
88 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 ...
0
votes
0answers
7 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 ...
0
votes
0answers
12 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 ...
0
votes
0answers
13 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
votes
1answer
47 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
votes
1answer
114 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
votes
1answer
15 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
votes
1answer
152 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?
-1
votes
1answer
24 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 ...