Tagged Questions

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

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10 views

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

I have been attempting to install Ubuntu 14.1 on a Dell Studio 1747 laptop with a Intel i7 Core Processor. Have owned this laptop since June 2010 running Windows 7. After recent hard disk crash, I ...
0
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1answer
23 views

Boot fail after update kernel in ubuntu 14.04

When I want to install with this command sudo dpkg -i linux-image-3.14.24-031424-generic_3.14.24-031424.201411141736_amd64.deb I got follow error: grub-probe: error: unknown filesystem. run-parts: ...
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2answers
19 views

If I have an x64 capable CPU, but install a x86 Ubuntu distribution, can I still run 64bit executables?

Also, would it be possible to install a x64 kernel, to transform it to a full 64bit installation?
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0answers
8 views

Cannot boot from CD…Kernel PAE missing

Attempting to load Ubuntu on a Dell D600 laptop that had its hard disk wiped clean. It will not boot from the CD. Error message says "PAE is disabled" How do I enable PAE?
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2answers
24 views

Ubuntu distro upgrade - does it install new kernel?

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 ...
0
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1answer
24 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 ...
0
votes
1answer
14 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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0answers
22 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
6 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
29 views

Ubuntu Touch Kernel Architecture and Comparison with Android

I am new to Ubuntu-Touch OS and would really appreciate if anyone could provide some information regarding the Ubuntu Touch Kernel architecture. I have read the Ubuntu Touch internals pdf but there ...
0
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0answers
11 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 ...
0
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1answer
13 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
17 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
6 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 ...
2
votes
1answer
71 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
42 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 ...
0
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0answers
9 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
59 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
32 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
31 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 ...
0
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0answers
26 views

Error after start instalation

Can this be disabled? thx for any help
2
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0answers
43 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
57 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 ...
0
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1answer
44 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
9 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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0answers
9 views

Rewite/update a packet using kernel hook

I am trying to update DSCP tag in packet. For that i need to create a hook and my hook will update DSCP tag of packet. How can i rewrite DSCP tag with my data? On conclusion, i want to know how a ...
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votes
1answer
38 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
votes
1answer
26 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
54 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
votes
1answer
24 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 ...
1
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0answers
18 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
20 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
26 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
43 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 ...
2
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0answers
38 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
39 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
10 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 ...
1
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2answers
52 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
66 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 ...
0
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0answers
12 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
114 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
50 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 ...
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0answers
35 views

How to fix Kernel Panic booting issue

This morning when I boot my Asus Eee X101CH (no cd/dvd player) I get the following message: > [2.393318] Kernel panic - not syncing: VFS: unable to mount root fs on > unknown-block (0,0) ...
1
vote
1answer
43 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
votes
1answer
13 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
185 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
vote
3answers
199 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
37 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 ...
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0answers
21 views

Kernel Panic Error After Install

I am trying to install Ubuntu and getting a a Kernel Panic. I have tried three different drives and no luck. It runs find in LiveCD mode, but once installed I cannot boot. Tried boot repair, ...
0
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1answer
149 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 ...