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

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1answer
208 views

How to boot load the kernel using EFI stub (efistub) loader?

I have Ubuntu 14.04 running in UEFI mode as only operating system, no dual-boot here. The kernel version is 3.13.0-24-generic. There is an EFI partition. In this case the EFI partition is not at the ...
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0answers
52 views

error: file '/vmlinuz-3.13.0-32-generic' not found

i shut my system down yesterday normally and this morning when I boot I get this error "error: file '/vmlinuz-3.13.0-32-generic' not found." I have tried the all the other advanced options and get the ...
1
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1answer
21 views

How to verify zswap running?

How can I check to verify that zswap is enabled and working on my system?
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0answers
6 views

How do I know what PEBs the master nodes are mapped to on UBIFS?

How can I find what PEBs(Physical Erase Blocks) the 2 master nodes on UBIFS running on my nand flash device are mapped to?
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2answers
599 views

Newest kernel 3.13.0-33 causes boot problems

I just installed the newest kernel 3.13.0-33 and after a reboot the computer won't boot further than the plymouth screen. Normally, the mouse cursor would apear and my second monitor would show that ...
1
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1answer
40 views

Ubuntu 13.04 to 13.10 upgrade has made drive inaccesable

I recently upgraded to 13.10 from 13.04 , and encountered kernel panic on restarting the system. I have some uncommited code on my drive , so I planed to use live usb to take it out but unfortunately ...
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0answers
14 views

How do I recompile a kernel module and insert it into the running kernel?

How do I recompile one specific kernel module (ib_ipoib) and enabling CONFIG_INFINIBAND_IPOIB_DEBUG and then unloading and inserting the debug version into the running kernel? is this possible?
1
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1answer
106 views

Does the Ubuntu kernel have EFI stub loader boot support?

This question is regarding efistub booting. I would like load the stock pre-compiled Ubuntu kernel directly from UEFI firmware its boot menu, using efiboogmgr. Since which Ubuntu version can this ...
-1
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1answer
287 views

can't run minecraft with ubuntu or wine since update to 14.04

i have followed other available advice on minecraft, java, etc, but can't find anything that works. here is my story: for a couple years i have been successfully running a cracked windows version of ...
-2
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1answer
59 views

How to upgrade latest linux kernel offline.

How to upgrade linux kernel offline in Ubuntu 14.04.
5
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1answer
68 views

Is there a reason the Kernels from the Kernel PPA don't have various features turned on?

I tried to use a Kernel PPA version of 3.16 today to debug an issue I've been having. Everything was working well until I noticed that my usual AuFS mounts weren't online. I combine a few directories ...
0
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1answer
144 views

Installing Wireless Drivers on Yoga 11s

Yoga 11s wifi card drivers are not pre-installed. I have followed numerous instructions online all of which include downloading the same package, unzipping it, making it, sudo make install. A summary ...
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0answers
13 views

Problem after kernel recompilation of version 3.10.48

I'm using ubuntu 14.04 on VMWare. I currently have kernel version 3.13.0-24-generic. For project purpose we are doing kernel recompilation and downgrading my current version to 3.10.48. It ...
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3answers
243 views

Intel Corporation 7 Series/C210 Series isn't being detected by any module

I have the same problem that the user in "Dummy Output in Ubuntu 14.04". The difference is that cat /proc/asound/card0/codec* | grep Codec outputs: cat: /proc/asound/card0/codec*: No existe el ...
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0answers
59 views

Error when trying to compile mstSupportKernel

I am trying to follow the solution for the MST issue outlined here: https://01.org/linuxgraphics/node/358 But when I try to compile the following: sudo make-kpkg -j 4 --initrd ...
1
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1answer
136 views

Kernel panic after wifi installation [closed]

after installing ralink WiFi adapter (Digitus DN-7042-1 Rev2 = 148f:7601) following this link: ralink 148f:7601 wifi adaptor installation the system's (Kubuntu 14.04) kernel panics and switches to ...
1
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0answers
29 views

Wireless Repeater causing kernel to crash

So my wireless set up is not ideal as far as my location relative to my AP goes. However I recently remembered I had/dug up an Amped Wireless 300N repeater (range extender). I set it up in my living ...
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0answers
135 views

Ubuntu 14.04 freeze - Kernel panic & Fatal Machine Check

I've got HP ProBook 470 G0 and Ubuntu 14.04 64-bit. Originally, it was preinstalled with Linux SUSE Enterprise but I've erased and installed Ubuntu 14.04 (it was Alpha that time). Laptop was randomly ...
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0answers
72 views

TCP hash tables in Linux Kernel

I have implemented a solution to migrate sockets between servers running Linux OS. The migration mechanism works very well and the client is capable of continuing receiving his service from the new ...
0
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1answer
256 views

NFS kernel daemon: no support in current kernel

I installed NFS server on my Ubuntu 12.04 64 bit with apt-get install and when I try to start the server I always see: NFS kernel daemon: no support in current kernel.
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2answers
47 views

Which kernel version fixes the issue of dell touchpads being recognized as a mouse?

On Ubuntu 14.04 a kernel update seems to fix the problem that the touchpad is just recognized as a mouse. Which kernel version fixes this issue? Related thread is here. Dell Trackpad not recognized ...
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0answers
30 views

How to use JSON-XS bug patch

I am installing a software I need for my research (and because of which I am learning Linux). I am doing it with a script done for someone else for RED HAT. Now corrected for Ubuntu, it still fails ...
3
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0answers
196 views

14.04 - USB microphone speaker device not working anymore

I own a PJP-20UR web conference microphone speaker, I have been using this USB device for ages with Linux, Windows, Mac never ever have had any issues with it. Since I upgraded from Ubuntu ...
0
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1answer
273 views

lm-sensors ubuntu 14.04 core voltages

I am trying to measure the core voltages of my cpu. I installed the lm-sensors, I ran the sensors-detect and I reply YES to all of the question. At the end of the sensors-detect I get: To load ...
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0answers
33 views

virtual install from ISO not getting virtual kernel

I have a KVM host (12.04.5) that I have been installing guests on in variety of ways. I just noticed recently one of my guests was running a generic kernel when I'm fairly certain I specified minimum ...
1
vote
1answer
46 views

Error compiling Kernel-aodv for ARM

I'm about to implement AODV on ARM board SabreLite and I'm facing some problems. So, I use the latest version of AODV located here (http://sourceforge.net/projects/aodvuu/). I've follow the ...
0
votes
1answer
59 views

openafs-client fails to upgrade on newest kernel 3.13.0-32 (ubuntu 12.04)

This morning my Ubuntu told me to do some updates, then in the end I had a msg that I should also do some HW support updates. And so I did. During the upgrade I saw there was some problems with the ...
1
vote
1answer
19 views

ubuntu server crash after build.sh run

I have a build server with Ubuntu. And in my source code there is typical build.sh to invoke the make file in order to compile the source code. But suddenly the server crashed and I found the below ...
2
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1answer
4k views

How can I install 3.16 kernel on Ubuntu 14.04

sudo apt-get update && sudo apt-get dist-upgrade do not show the newest kernel. How can I install 3.16 kernel on 14.04?
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1answer
66 views

Is it safe to upgrade my kernel? [duplicate]

I'm currently running version 14.04. Is it safe to upgrade only kernel to the recently released 3.16?
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1answer
33 views

Problem with side panel buttons Thinkpad L412, ubuntu 14.04

I have the following problem: After a kernel update, my side panel buttons on my L412 to incresa/decrease and mute volume (also de mic mute) stopped working. I don't know how to fix this, and the ...
0
votes
1answer
70 views

Built kernel won't boot, missing AHCI driver?

I need to apply a kernel patch and so I set about building a kernel. First I fetched the source and build dependencies with # apt-get source linux-image-`uname -r` # apt-get build-dep ...
0
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1answer
32 views

switching back to text console

I have used ubuntu many times but currently ubuntu crashed every time on my system. I dont understand the exact problem of my computer. I have tried every version of ubuntu & also other distro. ...
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0answers
51 views

Need help about Proxmox and GRUB2 on Debian

I am facing with a big problem. I am freshly installed Debian 7 on server4you dedicated server, and according to this tutorial: Link I am added the repo, installed the kernel like the tutorial said ...
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0answers
52 views

The newest kernel 3.13.0-32 fails during boot - any solutions?

The newest kernel 3.13.0-32 fails to boot and hangs saying... resume: libgcrypt 1.5.3 (i think). eventually it complains about not being able to mount swap But when I revert to kernel 3.13.0-30 ...
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0answers
18 views

will this kernel fork work on 14.04?

will this http://www.webupd8.org/2013/05/get-better-linux-desktop-performance.html work on 14.04 trusty ?
2
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0answers
52 views

How do I resolve a kernel panic without reinstalling?

I forgot to make a backup and it would take forever to reinstall and get it to a point I could use even if I were to copy over the home folder. I recently got a kernel panic with the message ...
0
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0answers
19 views

Repacking A Kernel

I am trying to pack up my server kernel I made with the packages downloaded and web page files all included. Basically this will allow me to put the same distro I have made on my dev board onto other ...
1
vote
1answer
273 views

Synaptic touchpad on laptop not working after update

I have found this solution from a thread a while ago but its temporary fix only: This seems to be a bug in 12.04.2. As stated in comments, a simple fix would be unloading the mouse driver ...
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0answers
16 views

What is cost of kernel-mode switch on Ubuntu?

What is the cost in CPU cycles of a kernel-mode switch, so from user mode, to kernel mode and back to user mode, on Ubuntu?
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1answer
43 views

My ntfs partition appear so many

My Windows 8 is missing in grub after installing a new linux distro (elemetary os), I already have Ubuntu. I booted into liveUSB and ran boot-repair and was Grub fixed, but when I boot into Ubuntu ...
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0answers
65 views

kerneloops General Protection Fault

I have had Ubuntu installed on my system for the past few weeks and I keep getting a kerneloops General Protection Fault. I think it is related to my AMD Raedon HD 5650 because I took it out of my ...
0
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0answers
56 views

Ubuntu kernel panic

Ubuntu ask me to upgrade my Ubuntu version from 13.10, to 14.04, so I said yes and I could not upgrade it because I didn't have enough space in /boot. I did my research in google, and I found this ...
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0answers
33 views

kernel crash after applying kde window theme unsuccessfully?

I had been trying a bunch of different themes in KDE just because I kind of like to do that (don't judge me) and when applying a theme that emulates the windows 7 titlebar, kwin and kde started ...
0
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1answer
74 views

Respect BIOS-specified CPU speed without kernel patches, etc. in 14.04

I've got a machine running "in the wild" in a very hot environment running an AMD chip which is overheating. I don't have physical access to the machine, but I have had someone change the CPU clock ...
0
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0answers
37 views

How to config the linux kernel?

I have a question on the kernel configuration in the Linux AndroidHLOS SW package in the Ubuntu developing environment. I checked the .config file in our target- the android mobile phone, the ...
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0answers
49 views

Grub doesn't boot after kernel upgrade

I upgraded my ubuntu 12.04 LTS via terminal and now grub doesn't find any kernel. I tried to look inside the /boot folder via grub terminal, but on my primary hard disk the folder seems to be empty. ...
0
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0answers
19 views

Kernel debugging

I am trying to set a kernel debugging between 2 Ubuntu machines, using a com port. It just does not work. I have tried to compile 3.15.6 kernel from kernel.org. Can somebody please help me? I am ...
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0answers
110 views

Cleaning up old HWE stacks?

I've been running 12.04 since release and have updated to every new HWE stack. I am currently on 12.04.4. Does anyone know how to clean out all the old versions of HWE? I currently have way too many ...
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0answers
33 views

what kernel should be used with ubuntu 12.04

I have 2 computers with intel i5 cpu's, both of which are running Ubuntu 12.04.4LTS. However, one has kernel version 3.2.0-67 and the other has kernel version 3.13.0-32. Both have all the latest ...