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

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1answer
38 views

missing sbin/hotplug in Ubuntu

Im using Ubuntu and I cannot find /sbin/hotplug. Did anything replace it? How does it handle hotplugging? I read that kernel calls it for notifying user space when an hotplug event happens. I also ...
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0answers
25 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
31 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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1answer
53 views

Conky does not show cpu temp

I am trying to use conky to minitor my system but it is not showing CPU temperature, lm-sensors, hddtemp are installed, I answered yes to all questions running sensors-detect and at the end it shows: ...
1
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0answers
301 views

After installing a new Kernel in Ubuntu 14.04, rebooting takes me to busybox initramfs. How do I mount a filesystem after that?

I have a virtual machine with Ubuntu 14.04 in it. I recently built and installed linux-3.14.5 kernel on it, and tried to boot into it, but it drops me to BusyBox v1.21.1 built-in shell. Here's what I ...
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0answers
13 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
97 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
31 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 ...
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1answer
2k views

Unable find package linux-header-3.2.46

Linux-header package is not installed. root@pc-4:~# apt-cache policy linux-headers-3.2.46 N: Couldn't find any package by regex 'linux-headers-3.2.46' root@pc-4:~# root@pc-4:~# Unable to install ...
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2answers
20k views

How can I remove new kernel versions after downgrading?

i have some problem. First i upgraded ubuntu to 12.04 and all of packages. But after that i have a lot of problems so i decided to downgrade to 11.10. After i did that i have two kernels 3.2.x and ...
1
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1answer
48 views

linux-image-virtual packages empty in 14.04 trusty?

I can't seem to get a linux-virtual kernel (for VMs) installed in trusty. The packages install perfectly fine, but they simply are empty, without anything except changelog and copyright files in ...
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1answer
49 views

Do I need to upgrade my kernel?

my first post here, so be kind, lol, I know you will be. I run a dual boot between Windows 7 Home Premium 64-bit and Ubuntu 12.04 LTS, and the Linux is a whole new learning curve for me. I bought an ...
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0answers
49 views

Custom Ubuntu 14.04 Trusty Tahr Live ISO - For TrafficSqueezer

I want to make custom Ubuntu v14.04 based live ISO with my TrafficSqueezer stuff in it. This allows users to directly use this Live ISO directly as a WAN optimization device without installation. ...
1
vote
1answer
2k views

VMWare virtual machine won't boot after 12.04 upgrade

I was running an 11.10 virtual machine on VMWare Workstation 7.1.5 build-491717. I tried to upgrade the other day to 12.04. After everything was downloaded and installed, the system asked to be ...
0
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0answers
17 views

No build folder for older kernel module

I am on Ubuntu 14.04, but I need to run a Linux kernel <= 3.8 in order to use a tool that is not compatible with more recent versions. I installed the linux headers and image from here, but I ...
2
votes
1answer
2k views

How to Upgrade Kernel Version?

My question is how to upgrade kernel versions for Ubuntu 12.04? My computer specifications are: Ubuntu 12.04 Kernel Version Linux 3.2.0-40-generic AMD Processor 64 bit processor. I have ...
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0answers
7 views

Firewire-core: bypassing the 1 second grace period

I am currently using the firewire cam AVT Guppy F080b and the IIDC Camera Control Library to store images whenever the camera is triggered. The application is not allowed to miss any trigger at any ...
0
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1answer
37 views

add multicast ip address into kernel route table

i want to add an IP (multicast 228.0.0.4) in the range of 224.0.0.0 – 239.255.255.255 in the kernel routes table, so i used sudo route -nv add -net 228.0.0.4 -interface eth0 but it gives me: ...
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0answers
22 views

HWE update for 12.04, now programs don't run--fixes?

I recently updated the kernel on 12.04 to a version that is going to be supported until 2017. Problem is, FlightGear and Celestia don't run now, but I believe it's vitally important to run a ...
1
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1answer
42 views

Installation ncurses to run command menu config

I am trying to upload new kernel apart from default one. but while installing ncurses getting error I tried with following options 1) sudo apt-get install ncurses-dev then got error 404 Not Found ...
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0answers
47 views

System Updated to 3.13 Kernel that won't boot

Recently, I got a message that told me automatic updates to my hardware would end 8/07 and decided to update my system to the latest kernel version 3.13. I'm running Ubuntu 12.04 on some fairly old ...
1
vote
1answer
546 views

“Your current Hardware Enablement Stack (HWE) is going out of support”

My ubuntu system now says; Your current Hardware Enablement Stack (HWE) is going out of support on 07. aug. 2014. After this date security updates for critical parts (kernel and graphics ...
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0answers
31 views

Use an older version of batman-adv on 14.04

I have a number of BeagleBone Black (BBB) boards running a batman-adv mesh network. The batman-adv version built into the BBB image (kernel 3.8.13) is 2012.5.0. My desktop and notebook clients all ...
0
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1answer
169 views

Ubuntu SD Card reader problem

I have realtek SD Card reader on ubuntu, and something weird happens: Sometimes it recognises SD card, sometimes it has no action at all after putting it inside, and sometimes shows, disappears then ...
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0answers
32 views

Kernel Panic when starting

Installed Ubuntu on new laptop with Win8.1 installed from USB key. Worked fine and could dual boot. Installed updates and rebooted when instructed Got following message when booting into ubuntu: ...
1
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1answer
67 views

Help with ram usage

I have a dual boot laptop with 512 MB RAM running Windows XP/Xubuntu. I try to load student.portal.chalmers.se (a huge bloat site) in Firefox. On XP, I can load the site without any swapping, but ...
1
vote
1answer
226 views

ubuntu 12.04 kernel 3.13.0.30

I have a Dell Inspiron 15 with ATI graphics card. Everything was working without any problems until kernel 3.8. During the regular updates Ubuntu suggested to update to kernel 3.13.0.30. After that ...
2
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0answers
55 views

Unable to boot after update

After a update, Ubuntu won't boot anymore and gives: error: could not read file. If I'm fast enough to press a button to continue, I get Kernel panic - not syncing: VFS: Unable to mount root fs on ...
0
votes
1answer
56 views

Downgrade Ubuntu 12.04 kernel to 2.6.x

I currently have the most up-to-date kernel (Linux user-desktop 3.2.0-67-generic #101-Ubuntu SMP Tue Jul 15 17:46:11 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux) of Ubuntu 12.04 on my x86_64 computer, but ...
1
vote
1answer
340 views

How does LTS combine with HWE out of support

This is a rather general question, but I'd really like to know where I got it wrong. Less than a year ago on one of my laptops, I installed Ubuntu 12.04 precise (Kernel 3.8.x) Now I am told that HWE ...
4
votes
1answer
87 views

How does the kernel load firmware? [closed]

Recently I've been struggling to get a wifi card to work properly (bcm43228), and had a few related questions. Questions are all related to the same subject, so imo it makes sense to make only one ...
10
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4answers
27k views

VMWare can't find linux headers path

I'm using ubuntu 12.10 with the kernel 3.7.0-7 from xorg-edgers fresh X crack. Now when I try to launch wmware workstation it asks for linux header path like shown here. I tried all the solutions on ...
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3answers
1k views

How to check if netconsole really works?

I installed netconsole using the instrunctions given here: https://wiki.ubuntu.com/Kernel/Netconsole dmesg | grep netconsole says everything is OK, but I won't believe it so easily:) How can I ...
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0answers
18 views

find the .config file for linux kernel 3.10.48

I'm trying to compile kernel source code(3.10.48), and I wanted to know that how can I find or retrieve the .config file for the kernel?
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0answers
108 views

How to BuildMyOwnKernel, bumping +1 for revision number version?

I'm facing a hard time with Linux 3.13 from Trusty but, it is another topic (http://www.mail-archive.com/ubuntu-server@lists.ubuntu.com/msg06775.html), so, I decided to backport the Linux 3.16 from ...
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0answers
20 views

booting Ubuntu 14.04 in VirtualBox [duplicate]

In trying to boot Ubuntu 14.04 in VirtualBox on Windows 7, I get this message: "This kernel requires an x86-64 CPU, but only detected an i686 CPU. Unable to boot. Please use a kernel appropriate for ...
0
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0answers
20 views

Ubuntu 14.04 libnetwork.so crash for unity control centre

I am new to ubuntu and I am kind of stuck with network. I was having problem with connecting to wifi networks. Now the problem was that the network settings show the wifi networks available but when I ...
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0answers
33 views

Kernel compilation

I'm trying to compile a source Linux kernel (version linux-3.10.48). Using the make menuconfig command, all the configurations are done and the .config file is saved, but when I'm compiling the main ...
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0answers
36 views

how to install ksymoops on Ubuntu 14.04

I want to analyze kernel crash(Oops) using ksymoops. I am trying to install ksymoops on Ubuntu 14.04(LTS) 64 bit using command sudo apt-get install ksymoops but unable to install. Below mentioned ...
13
votes
2answers
7k views

Hardware Enablement Stack (HWE) out of support

From yesterday my update manager gives me this message: Your current Hardware Enablement Stack (HWE) is going out of support on 07/08/2014. After this date security updates for critical parts ...
1
vote
2answers
1k views

How does the linux kernel choose which firmware version to load?

I installed the latest firmware for my network card N-7260 from http://wireless.kernel.org/en/users/Drivers/iwlwifi#Firmware. I am using Ubuntu 14.04 with kernel version 3.14.01 from the kernel's team ...
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2answers
89 views

Config file accidentally deleted

I accidentally deleted the kernel config file found in /boot. So I have 2 questions. Does this affect the system by any means? and I am trying to compile the Linux kernel now and was looking to ...
13
votes
3answers
19k views

Will it be possible to use a non-pae kernel in recent versions of Ubuntu?

I know that Ubuntu +1 questions are frowned upon, but this I believe is a fair exception. Currently I have 2 systems running Ubuntu 12.10, and one of them has a Pentium M that doesn't support PAE ...
0
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0answers
84 views

Important installations failed

I have a new computer with ubuntu 12.04 LTS ready installed. I get a message telling me to install an important security update 'Linux kernel image for version 3.5.0 on 64bit x86 SMP, but install ...
0
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0answers
63 views

kernel 3.13.0.32 Fan RPMs greatly increased

I have just updated the kernel from 3.13.0-30 to 3.13.0-32 for Ubuntu 14.04 that has all "stable" updates. As soon as I rebooted (several times) the two computer fans went from the average 1400 RPM ...
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0answers
18 views

EDCA do not prioritize the traffic correctly on atheros card

I am trying to make some tests on my Atheros card (3com, 11a/b/g Wireless card, 3CRPPAG175). I observed that for Voice and Video packets the band is divided by half. I expected that Voice will be ...
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0answers
34 views

error while booting xubuntu 14.04

I get a message on the screen every time I load xubuntu 14.04 on my xp mini, which says: " Support for core revisions 0x17 and 0X18 disabled by module paron allhusupport=0. Try013.allhusupport=1. ...
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vote
2answers
26 views

Ubuntu 12.04 Cannot update kernels

Currently I cannot load the kernel 3.8.0-39-generic, or 3.8.0-38-generic. I have to go back and use 37, is there anywhere I can remove the two newer ones and re install them?
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0answers
18 views

Is there any solution to set baud rate, line discipline etc., by only using our kernel module?

I wrote a kernel module for a touch screen monitor and earlier I used inputattach (written in userspace) to open serial port, set baud rate, control flags, line discipline etc. But now I want to ...
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0answers
25 views

Perf not found for kernel 3.13.0-031300 [duplicate]

I am trying to install perf on the ubuntu 13.10. However I am getting error: perf not found for kernel 3.13.0-031300 You may need to install linux-tools-3.13.0-031300-generic I have tried the ...