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

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How to upgrade/ remove recompiled kernel version in Ubuntu 14.04?

I m working on process migration and for adding extra utilities, I recompiled my previous kernel version 3.13.0-24 generic to 3.10.48. Now I want to install Checkpoint/Restart tools (CRIU) which are ...
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0answers
25 views

No Wireless drive detection in new built kernel for reverse bisecting

I need to do a reverse bisect for a bug and I narrowed the versions down to two. Now, I need to build a 8 new kernels. However, when I built them, the kernel cannot detect my wifi drive so that I can ...
-1
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1answer
55 views

Problem with VMware Workstation 8.06

I am a new Linux user, and I'm currently using the latest version of Lubuntu. I want to create a virtual machine with VMware because in VirtualBox I am not able to use DirectX in Windows XP. Even ...
42
votes
4answers
21k views

How do I install and use flashcache/bcache to cache HDD to SSD?

I want to know if there is anyone who has tried installing and running their kernel built with flashcache or bcache for SSD caching? How did you manage to do it?
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0answers
55 views

.conf in /etc/modprobe.d does not work [14.10]

I have that horrible buzzing sound in my left headphone (it's the same in windows, I think it's a hardware defect) so I want the sound chipset to automatically power off to get rid of that buzz sound ...
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1answer
1k views

Wrong kernel after upgrade — old kernel still installed?

I just upgraded from 13.10 to 14.04, but when I do uname -r, it says I have kernel 3.11. I want to have the default 14.04 kernel, (3.13 I believe). How can I get this?
0
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1answer
323 views

Remove Old Kernel to free disk space

My system has old Ubuntu kernels but I am unable to remove them. How can I remove my old kernel to free my hard disk. Here are some outputs of commands I tried: $ sudo apt-get remove --purge ...
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0answers
27 views

Terminal command to send an interrupt to mimic a new peripheral device connection?

Is there a way to send an interrupt indicating a connection of a new peripheral device? Being precise I want a standard user command that could perhaps mimic ps/2 mouse connection. My mouse keeps ...
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0answers
52 views

Header file for struct proc_dir_entry

I'm writing a firewall for the Linux kernel and I'm using the proc_dir_entry data structure (which I've found in the tutorial I'm currently reading). My firewall is conceived as a kernel module but ...
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2answers
121 views

Upgrading Linux Kernel 3.11 to 3.13 for Ubuntu 14.04 [duplicate]

When I upgraded to Ubuntu 14.04, apparently my kernel was supposed to upgrade from 3.11 to 3.13. Unfortunately, the kernel upgrade did not complete. As a result, I have several files for 3.13, but am ...
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2answers
2k views

Ubuntu 14.04 problems with kernel 3.17

Just upgraded to ubuntu 14.04 from Ubuntu 12.04. After a bunch of problems with my mouse and keyboard not working at the login screen with kernel version 3.15, I went to grub and switched to a lower ...
0
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2answers
132 views

kernel is outdated

I have troubles with updating my kernel. I'm running Kubuntu 14.04. uname -r output: 3.13.0-32-generic I clearly see newer versions in repos with sudo dpkg --list 'linux-image*': ... ...
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1answer
30 views

Change kernel config without compiling

Is it possible to change the kernel configuration of the running kernel without compiling it myself? In debian-based systems, there's the config file of the current kernel in /boot, e.g. ...
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0answers
25 views

Which part of the kernel powers on/off USB ports? How - the internals?

Please refer to this post: Power on/off USB ports . It is one thing to blindly replicate the codes in a terminal and get the desired results. I wish to know which part of the kernel does this work, ...
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0answers
126 views

Random kernel panics after upgrade to 14.04

I installed a fresh Ubuntu 13.10 on my Samsung series 9 (NP900X3C). It was working great. However after upgrading to Ubuntu 14.04, I'm getting random crashes and kernel panics. The system might run ...
0
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1answer
48 views

Accidentaly deleted initrd and vmlinuz

Yesterday I suddenly deleted initrd and vmlinuz files in boot folder. Now I can't get in my Debian system, because GRUB can't find vmlinuz and initrd. I tried to generate new initrd image but I can't ...
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2answers
3k views

Errors compiling vmnet for VMWare Player, 3.13.0-27-generic

Update: This problem went away after rebooting in 3.13.0-29-generic. I am trying to install and run VMWare Player on Ubuntu 14.04, kernel 3.13.0-27-generic. I downloaded and executed the latest ...
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0answers
75 views

Ubuntu 14.04 : Core 2 Duo : System wont boot when Multi Core processing is enabled

I belive you guys are having good time. Well i am not!! I got an annoying problem with my Laptop(Thoshiba L310). She wont boot if Multi Core processing is enabled. On booting, just before i enter the ...
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2answers
130 views

Dual boot system fails to boot at all! Help

I have a persistent problem of recovering my hard drive. I had Ubuntu and Win 7 installed on my DELL xps m1530 (Core Duo 2). After manipulating my partitions in windows, I got stuck in grub rescue. I ...
0
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1answer
87 views

Unity gone after upgrading 14.10 to latest 3.16 kernel

After upgrading 14.10 to the latest 3.16 kernel today, my Unity GUI is messed up. I was able to create a folder and open it, but if I navigate to the /bin folder, right-click on bash, then select Run, ...
0
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1answer
18 views

problem new with ubuntu and i cannot install

I have neu cd ubuntu 12.04. With installation was everything ok and after restart i have error unable to monut root vfs kernel panic and cannot open root file. I tried to install this again but not ...
0
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1answer
31 views

After changing kernel , kernel crash is not working

I have changed the kernel in Ubuntu 12.04. After this, if I gave a kernel crash the memory configurations are getting changed and dump file is not created.. It is getting changed from 4GB to 109MB. ...
0
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1answer
58 views

Ubuntu General Instability / crash triggers Windows 8.1 startup repair

Let me begin with my usual statement that I only ask questions on StackExchange sites when I can't find anything on Google, and that my question-asking skills are rusty, so forgive me blah blah ...
0
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1answer
166 views

How do I install driver for Radeon Mobility HD 3650?

I was trying to install driver for my graphics card, I'm using Ubuntu 14.10 and when I install driver from support.amd.com log file says that i don't have kernel headers (version.h file) in ...
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0answers
68 views

Hard Disk SMART Attributes FAILING

I have a dual booted lenovo ideapad z510 computer - windows 8 and ubuntu 14.04 (mainly used). Since a few days, while I go into ubuntu, errors of not able to read from hard disk , kernel panic , etc ...
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1answer
28 views

does every program have to go through the shell to complete the process they willing to make?

i have seen somewhere that "bash is used to communicate with the Linux kernel" is it take effect only to the terminal? or every program (including programs which has GUIs) have to go through the ...
2
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1answer
10k views

How install kernel header in Ubuntu

I am using Ubuntu 12.04 64 bit whenever, i am giving following command in the teminal dpkg -s kernel or dpkg -s kernel-headers both the output shows kernel or kernel headers are not installed ...
23
votes
4answers
99k views

How do I install kernel header files?

i want to write a device driver but not able to find the header file can someone please help me find them?Also if someone can point out some important site links that would be really appreciated
3
votes
4answers
3k views

/usr/src is eating up all inodes

It seems /usr/src (apparently old kernels) used up all my inodes: Filesystem Inodes IUsed IFree IUse% Mounted on /dev/sda4 489600 489600 0 100% / devtmpfs ...
4
votes
1answer
423 views

What is a -ckt mainline kernel?

I just saw v3.16.7-ckt1-utopic on http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D and found a related anouncement promising information about -ckt kernels in the ExtendedStable kernel article ...
0
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0answers
58 views

Use new 3.16 kernel alsa firewire with qjackctl

I just upgraded Ubuntu studio to 14.10 with 3.16 kernel on a 2008 MacBook because it should support a lot of new firewire audio devices natively in alsa. I plugged in my Behringer ufx1204 with its ...
0
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1answer
32 views

Which compiler i have to use to understand C behaviour exact behaviour

I am confused regarding with the c compilers. as per my knowledge for a programmer the code is not important but the internal behaviour is very important.cause if we know how the compiler behaves for ...
0
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2answers
110 views

How to resolve the “/lib/modules/3.13.0-27-generic/build: No such file or directory” error message?

I'm following the instructions on this page so I can submit enough information about my machine to this bug report module. I'm stuck in running some of the following commands git clone ...
2
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1answer
40 views

How do I “unpin” the kernel? [duplicate]

Earlier this year I had to pin my kernel because an update came down the pipe that broke WINE compatibility with Win16 apps. I followed the directions here: How to skip kernel update? It appears as ...
6
votes
4answers
5k views

Reverse-Engineer Driver for Multi-colored Backlit Keyboard on Clevo Laptops

Here's my situation: I recently purchased a Sager NP9170 (same as the Clevo P170EM) and it has a multi-colored, backlit keyboard. Under Windows 7, you can launch an app that allows you to change the ...
0
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0answers
73 views

Ubuntu 14.10 Kernel boot problem

yesterday I installed 14.10 on my laptop. Everything worked fine I installed the proprietary nvidia drivers and updated my intel graphics drivers. I rebooted after that and everything worked. Today I ...
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0answers
47 views

Kernel messages scrolling over Grub background image during boot?

I display a Grub custom background image at boot time(Ubuntu 14.10). I would like this background image to stay in place during the kernel startup and to scroll the kernel messages over the Grub ...
0
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0answers
111 views

can't install ubuntu 14.04.1 on asus VC60-B022M

I checked the MD5 hash to see if my ISO was corrupted; I tried both rufus and unetbootin to burn the ISO image on the USB key; whatever I do I get this error message: Kernel panic - not syncing: ...
0
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1answer
76 views

L1 + L2 cache hardware information with lscpu different to information from Intel & Windows

My CPU is an INTEL Celeron N2930 Bay Trail-M 1.83GHZ to (2.16GHZ Turbo) I get by typing lscpu in Terminal a different value of L1 + L2 Cache (Hardware Information) in comparison to the Intel + ...
31
votes
9answers
60k views

Error: kernel headers not found. (But they are in place)

I'm trying to install the Guest Additions in VirtualBox 4.04. Host OS is Ubuntu desktop 11.04 64bit, guest OS is Ubuntu server 11.10 64bit. $ sudo ./VBoxLinuxAdditions.run After some output this ...
19
votes
4answers
41k views

get rid of kvm: disabled by bios

I'm getting a message: kvm:disabled by bios after upgrading my kernel to 3.8.x. I've never installed kvm package.neither I can enable virtualization from my bios, because of a bios bug. I wish I ...
18
votes
3answers
15k views

Can I update the kernel of my 10.04 LTS to the latest kernel?

I want to update the kernel version of my current 10.04 LTS to at least 2.6.37 (because the drivers for my eth0 and wlan0 interfaces are included in the said kernel). If it is possible, how do I do ...
0
votes
1answer
492 views

correct kernel source path

I'm trying to install cuda6.5 using the .run file on an amazon aws gpu instance. I'm getting this error. I'm not sure what the kernel source path is. I did install it with apt-get install linux-source ...
0
votes
1answer
155 views

indicator-cpufreq not working with kernel 3.17?

indicator-cpufreq have just two option (powersave and performance) after upgrade to kernel 3.17. Is there any way to fix it? I reinstall this program but still have same problem.
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2answers
61 views

Problem With Guest Additions in Ubuntu Server [Virtual Box]

I have a problem installing Guest additions in ubuntu server with kernel 3.13.0-39-generic I install whole headers for this kernel with $ sudo apt-get install build-essential linux-headers-$(uname ...
21
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2answers
14k views

What is the linux-image-extra package for and do I need it?

Good day everyone. I occasionally update my kernel from this web site http://kernel.ubuntu.com/~kernel-ppa/mainline/ I have been always downloading 3 deb files for installing linux header all, ...
0
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1answer
180 views

Unable to Install 14.1 on Dell Studio 1747 Laptop, Intel i7, 10GB RAM - Kernel error BUG: Soft Lockup

Update: I have now attempted to install 14.01, 13.1, and 12.04.5 with the same result. I have been attempting to install Ubuntu 14.1 on a Dell Studio 1747 laptop with a Intel i7 Core Processor. Have ...
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vote
3answers
3k views

Can't boot after update, stuck on a loop [closed]

Today I updated my Ubuntu 11.10 to kernel version 3.0.0-16-generic. After the update I restarted the computer and then I got stuck in a loop right after the initial screen where all the modules are ...
1
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0answers
155 views

Installing GCC Cross-Compiler for i586-elf

I was following a tutorial http://wiki.osdev.org/Main_Page to build an OS. I needed to install a cross compiler for i586-elf (Executable and Linkable Format). How to install it on ubuntu 12.04 ?
0
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1answer
37 views

How can I find most stable and newest kernel edition for Ubuntu?

I want to choose a newest and most stable version Linux kernel for Ubuntu. Is it newest longterm version in http://kernel.org version(and download equivalent version in ...