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

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2answers
49 views

Ubuntu distro upgrade - does it install new kernel? [duplicate]

I performed a distro upgrade via apt-get and upgrade-tool from saucy 13.10 to trusty 14.04. It seemed to go OK and the "about" now tells me I am running 14.04, however uname -a says I am running ...
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1answer
108 views

Can't install linux-headers-3.13.0.35-generic, crashes on VMWare and VirtualBox

i've installed ubuntu 14.10 and i got some troubles trying to run a virtual machine. I've tried all to run VirtualBox and VMWare, but without success. Both programs ask me for ...
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1answer
31 views

Is there a way to integrate Node.js into the kernel core so that the system has this node running as a module.?

I want to integrate node.js into the kernel as a module. So that i could develop a common html+js+css app as a desktop app. How can this be done ? It would be nice if ubuntu had this feature.
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1answer
178 views

Intel Xeon Phi 7120p on 14.04LTS

I recently bought Intel Xeon Phi 7120p and plugged it into a computer running Ubuntu 14.04 LTS. The card shows up in lspci, but then I don't know what to do next. Should I install updated MPSS ...
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0answers
20 views

PCIE module options

Exactly after last kernel upgrade, my HDD started to make errors, switch to Read-only operating system, etc. I'm using a PCIE card to connect this SATA2 HDD to my Ubuntu Server. dmesg lists some ...
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0answers
30 views

How to deal with very frequent failure to inform the kernel about modifications to partition?

Moving multiple ext4 and vfat partitions in gparted 0.19.0 on Ubuntu 14.10 constantly causes Error informing the kernel about modifications to partition /dev/sda13 -- Invalid argument. This means ...
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1answer
59 views

How to install Open Virtual Switch

I want to install the Open Virtual Switch. How can I do so? I read the openvswitch.org page but that was not well explained and I did not understand it, perhaps because I am new to Linux. Can any one ...
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0answers
35 views

Kernel Tuning Tools?

How to improve performance of a Kernel ? Are there any tuning tools to improve Kernel performance ? Thank you.
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0answers
8 views

What does it mean for /proc/kpagecount to be zero

for some entries in /proc/kpagecount, all the 64 bit entry is zeros and yet the page is allocated (confirmed from /proc/kpageflags). What does it mean for kpagecount to be zero for certain physical ...
4
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3answers
490 views

When will kernel 3.14 be available in the repositories?

I see that kernel 3.14.1 is available for Trusty at http://kernel.ubuntu.com/~kernel-ppa/mainline/ When will this kernel be available for upgrade via the Ubuntu repositories. (I know that I can ...
0
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1answer
81 views

virtualbox not recognising existing machine in ubuntu 14.04 LTS

I have install windows xp in Ubuntu host.I was working fine but suddenly when I restarted my computer virtualbox manager does not recognise my machine.I had reinstall,updated kernel and tried to ...
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0answers
17 views

My kexec is broken with Utopic Unicorn

I am unable to do proper warm reboots with kexec since the release upgrade to Ubuntu 14.10 on my Lenovo ThinkPad T410. When I get to Starting new kernel..., the system does a cold reboot (full reboot ...
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0answers
134 views

Ubuntu frustrating crash

I am experiencing a freeze once in a while. When my computer freezes, only the mouse can move but it cannot click anything. In addition, I cannot switch to terminal using alt + f1 or ctrl + alt + ...
1
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1answer
140 views

uname -r returns the wrong kernel version

I upgraded from Ubuntu 12 to 14.04 and ran a check at the end of the process to verify everything went right. here is the output of uname -a Linux odoo 2.6.32-042stab092.3 #1 SMP Sun Jul 20 13:27:24 ...
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0answers
43 views

Upgrading Kernel Breaks Several Features

I've recently made the switch from Windows to Ubuntu 14.04. I'm sure you can imagine my excitement when I started the OS, and found it to be almost completely ready to go out of the box! After a few ...
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0answers
33 views

Error after start instalation

Can this be disabled? thx for any help
2
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0answers
256 views

Encrypted disk kernel warning - initramfs image won't boot

After an upgrade to 14.10 on my netbook, I can only manage to boot with the old kernel remaining from the previous 14.04 installation. For the most recent kernels, I get this warning when they are ...
0
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0answers
136 views

Dell 5737 freezes on ubuntu14 everytime during resume from suspend

My dell 5737 laptop was running all fine on 12.04. As soon as I upgraded to 14.04 I am consistenly running into system freeze everytime system attempts to resume from suspend. This happens when I ...
1
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1answer
96 views

Can't delete all unused kernels

I am trying to remove all my unused kernels but it is not working. My dpkg --list | grep linux-image result is as follows: ii linux-image-3.13.0-24-generic 3.13.0-24.46 ...
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0answers
17 views

Modules in /proc/modules address issue

If I cat of the /proc/modules the RAM address location of modules is always 0x0000000000000000. Any ideas? vmnet 51316 13 - Live 0x0000000000000000 (OX) parport_pc 32701 0 - Live 0x0000000000000000 ...
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1answer
61 views

There's a way ubuntu's kernel supports my video card?

Well my problem is my old gaming laptop is not compatible with the ubuntu kernel, (as far as i read) that happened since i upgraded to ubuntu 13.10, my video card is an ATI Radeon HD 3650 and each ...
0
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1answer
47 views

What is the easiest way to clean the boot folder in Ubuntu 14.04 when you have 0 bytes left [duplicate]

I have tried to look on ask Ubuntu and all answers say the same thing. I have tried lots of them and still no luck; is Ubuntu 14.04 code specific? Please help. : )
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2answers
204 views

custom iso, error rebuilding initrd (mkinitramfs)

I'm creating a custom ISO (starting with ubuntu-14.04.1-server-amd64.iso) and wanting to upgrade it's kernel to latest (for me that's 3.13.0-38-generic). I'm following the instructions in ...
0
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1answer
83 views

Upgrade from 12.04 to 14.04. Kernel not upgraded

I had upgraded a VPS server from 12.04 to 14.04, but recently noticed that that the kernel is 2.6.32. I am not an expert Linux user but unfortunately, it is my responsibility. I have checked how to ...
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0answers
60 views

Why `apt-get dist-upgrade` in EC2 image does not update the kernel?

I've built a system running Ubuntu 14.04 on EC2, using the AMI from Ubuntu's cloud-images repository. The AMI includes kernel 3.13.0-37, but 3.13.0-39 is available as an update. After running ...
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0answers
28 views

How do I implement multiple keymaps into a kernel?

my problem is as follows: I have a custom-made kernel that has no functionality in regards of changing the keyboard mapping. It is possible to compile a different keymap into it, but that's it. The ...
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0answers
59 views

Unable to boot Ubuntu 14.04 on Dell Precision T7500

I tried to install Ubuntu 14.04 64-bit on my DELL Precision T7500 workstation. But even after trying for many times, the installation process hangs in between. So I installed Ubntu 13.10 64-bit. Later ...
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0answers
73 views

Kernel panic Ubuntu 14.04 kernel 3.13.0.39

When booting the computer I get the message kernel panic. I reboot the computer, and on this second boot I get the screen where I can choose kernel versions. If I choose kernel 3.13.0.3 generic the ...
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0answers
166 views

Why can't my udev rules rename kernel device nodes after upgrading from 12.04 to 14.04

In Ubuntu 12.04 I wrote the following udev rules to fix the /dev name of a USB RF remote control. These were: KERNEL=="event[0-9]*", ATTRS{name}=="BTC USB Multimedia Cordless Keyboard", ...
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2answers
54 views

Interpreting uname output: 32 or 64 bit?

I used uname command and obtained: Linux rufusruffcutt 3.2.0-35-generic-pae #55-Ubuntu SMP Wed Dec 5 18:04:39 UTC 2012 i686 i686 i386 GNU/Linux What do this mean and how can I tell if this is a 32- ...
0
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1answer
74 views

how to modify kernel to activate SPI-devices on 12.04 Pandaboard?

There are many examples online for modifying and building kernel, but non of them would realy work! I want to activate SPI-Devices to work with. It needs also GPIO-Interrupt for triggering ...
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2answers
79 views

Recovering grub using Ubuntu Live USB

I have Ubuntu 14.04 (64-bit) installed on a Dell server. I wanted to use one of the earlier kernel versions and I edited /etc/default/grub for this. It seems like I made something wrong. After ...
0
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1answer
347 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
36 views

Circumventing MacBook Pro's motion sensor using /dev/input/js0 as a joystick

I'm on a MacBook Pro 8,1 running 14.04 and I've never plugged in any device with a joystick to my laptop. When I was trying to fix an input problem I was having, I checked /dev/input/js0 thinking that ...
0
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0answers
167 views

ubuntu 14.10 shows kernel panic error on startup after upgrade from 14.04

i upgraded from 14.04 to 14.10, when prompted by the system update utility during the upgrade some packages did not install properly / gave errors (i cant remember which packages) after restart it ...
0
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1answer
68 views

ubuntu 14.04 not working after kernel update how can I save my ubuntu system?

ubuntu 14.04 not working after kernel update how can I save my ubuntu system? yesterday , when I updated the ubuntu 14.04 and its kernel core , it asked me for a reboot! and then I cant access to my ...
1
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1answer
153 views

Updating linux kernel

Is it possible to update the Linux kernel without installing a new version of the Linux distro? If I want to download the kernel from the Linux website and manually install by compiling it, how can it ...
0
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1answer
15 views

Toshiba 2800-200 lubuntu installation failure

So I have an old toshiba running win ME, and I want to use it again. I thought I could just install lubuntu with a pen drive. The problem is when I choose the installation mode, it freezes until i ...
0
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1answer
311 views

Unable to boot after update to linux-image-3.13.0-39-generic

Running Ubuntu 12.04 LTS on Intel-based computer. I ran the update package for a new release Linux and it seemed to be successful, but when rebooting, I was unable to boot. I booted to a previous ...
1
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3answers
633 views

Can't run a fresh install of Ubuntu 14.10, shows kernel panic

I tried to install Ubuntu 14.10 (or 14.04) 64-bit on an older Acer laptop (but not a totally weak one, I could run Ubuntu 14.04 on it before). It could install or boot from an USB drive (created via ...
0
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0answers
52 views

How to resolve the kernel panic problem of my ubuntu os?

The system has crashed (kernel panic) several times where a black console screen appears (figure below) displaying "Kernel panic.. switching back to text console" & the system freezes (requiring ...
0
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1answer
239 views

Gave up waiting for root device ubuntu 14.10

I have recently installed Ubuntu 14.10 (kernel v3.16.0-23) I am new to Linux environment and learning how to compile-install-boot new kernel image. I downloaded kernel 3.17.2. Compiled and built the ...
0
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1answer
63 views

A question about the last security update for Ubuntu [duplicate]

I'm subscribed to the Ubuntu Security Notes, so everytime that I receive an e-mail, a new update is avalable. But in the last update, they wrote something in the end that I coudn't undertand much, so ...
0
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1answer
51 views

Can linux-lowlatency be used with UEFI secure boot?

I am using the linux-lowlatency package as my main kernel (as the generic kernel produces horrible lags while playing audio to my bluetooth speakers). I regularly find that my /boot partition is ...
0
votes
1answer
301 views

Install 64-bit kernel in 32-bit Ubuntu

I want to use an application that is only available in 64-bit, but my Ubuntu installation is 32-bit. The application is proprietary, so I can't even recompile it for 32-bit. I've read that I should ...
0
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1answer
15 views

Dynamic Right sizing for TCP implementation in linux

Is Dynamic Right Sizing(DRS) implemented in linux kernel(3.4 and above) by default?.In this link(http://public.lanl.gov/radiant/software/drs.html) patches for kernel 2.4.23 and 2.4.8 are available but ...
0
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0answers
302 views

grub rescue> unknown command “kernel”

I have Ubuntu 12.04 installed on my laptop, everything worked fine, but today I got this message: error: hd0 out of disk. grub rescue> This happened to me before, and usually I solved it with ...
0
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1answer
249 views

I can't upgrade kernel on Ubuntu Server 14.04.1

today I made a mistake and now I don't know how can I fix it. I updated the kernel using dist-upgrade and I installed Linux 3.13.0-39-generic on my server. I had Linux 3.13.0-37-generic. The thing ...
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0answers
33 views

Disable psmouse add start up using modprobe

My touchpad just doesn't work and acts strange so I have to disable it with sudo modprobe -r psmouse every time I boot into Ubuntu. But how can I make this change permanently and no need to re-enter ...
3
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2answers
753 views

No user input after upgrading to ubuntu 14.10 with linux kernel 3.16

After upgrading from Ubuntu 14.04 to 14.10, I am no longer able to use my keyboard and mouse to do anything. I can't even get to a tty terminal. All I can do is stare at the login screen, or do a hard ...