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

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2
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2answers
3k views

How to upgrade Kernel Version 3.10 from Ubuntu 13.04

I want to upgrade Kernel. Now my linux kernel is 3.8.0-19-generic. How to upgrade my kernel? i am linux beginner.
1
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2answers
1k views

How can I load the standard wireless driver after I deinstall ndiswrapper?

since I have some problems with my download speed under ubuntu (see my other question) I installed ndiswrapper to load windows driver for my wifi card. Unfortunatly it didn't worked very well so I ...
8
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2answers
7k views

How to remove Kernel/LTS Enablement Stack?

this question regarding the LTS Enablement Stack has actually two parts: I installed Linux 3.5.0-x on Precise 64bit via sudo apt-get install linux-generic-lts-quantal xserver-xorg-lts-quantal . As ...
2
votes
2answers
3k views

Cannot adjust brightness after sleep

I have a Toshiba Satellite R830 laptop with Ubuntu 12.04.1 64 bit. The Fn + F6 and Fn + F7 buttons adjust brightness until I put my laptop on sleep. On wakeup they don't work any longer. Is there a ...
2
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1answer
391 views

Why is lowlatency kernel not being updated in parallel with the generic kernel?

All, Any idea when we'll see updates to the lowlatency version of the Ubuntu 12.04 kernel? It is still stuck at 3.2.0.23 whereas the generic kernel is already several updates ahead of it at a version ...
1
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0answers
67 views

Which kernels from Ubuntu 3.5.0 can I remove? [duplicate]

After reading some very helpful information on your forums, I now know how to remove unneeded kernels to free up disk space for updates. Can any of you tell me which of the following I can safely ...
1
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3answers
2k views

Ubuntu doesn't boot after kernel update

After the update to latest kernel (2.6.32-31-generic), when I start my PC, all I get is the grub2 prompt. I don't get any errors, it simple wont boot. I tried this ...
23
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0answers
5k views

How to remove old kernel versions automatically? [duplicate]

I know number of ways to remove old kernel versions manually. Is there any way to remove old kernel versions automatically? Automatically, in the sense i don't have to do the same thing each time the ...
7
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3answers
10k views

Are the Ralink RT3090 drivers incompatible with Ubuntu 10.10?

Ralink Technology publishes their drivers in source code form on their website here. When complied with make and make install in 10.04, the drivers worked well in 32 and 64 bit versions of Lucid. ...
1
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1answer
5k views

Update to 3.13 kernel on Ubuntu 13.10 [duplicate]

Since my ATI hybrid graphics card isn't working well under Linux, I wanted to try the new kernel. I don't want to update to 14.04 just yet, because of some missing dependencies and there doesn't seem ...
1
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1answer
1k views

Update Manager asking me to update kernel but apt-get upgrade does not?

Just what the title says. The update manager is also asking me to update to Ubuntu 12.10 even when I have the part unchecked that says "Check for new Ubuntu version updates" thing. Is there some way ...
1
vote
1answer
5k views

Bug: unable to handle kernel NULL pointer dereference at

I have recently installed new system on my disc, Ubuntu 12.04. Installation proceeded without problems, I started installing additional software and put data from other discs. I had already two times ...
1
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0answers
3k views

pae kernel required for my cpu [duplicate]

Possible Duplicate: How can I install 12.04 on a non-PAE CPU? (error “Kernel requires features not present on the CPU: PAE”) Virtualbox install 12.04 guest: “pae not ...
1
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2answers
2k views

Compiling AVLD on 11.04

I'm trying to install AVLD 1.4 on Natty. I've unpacked the files, but when I compile them with make, it fails: make -C /lib/modules/2.6.38-8-generic-pae/build M=/home/jmendeth/Downloads/avld_0.1.4 ...
0
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4answers
4k views

Installing driver for Atheros AR8131

I am having the same trouble as others getting my Atheros AR8131 Ethernet card recognised by Ubuntu 12.10 on my new HP Pavillion P7-1449 PC. I found the same question where the answer suggested the ...
0
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2answers
788 views

Trouble installing Ubuntu with USB on laptop

I have created a bootable USB stick using Universal USB Installer 1.9.0.9 and tried to boot from my USB on a laptop with a clean hard drive. I keep getting the message Could not find kernel image: ...
0
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0answers
689 views

Wifi disabled for Intel Centrino Wireless-N 1000 Intel in 12.04 [duplicate]

Possible Duplicate: Wifi for Centrino Wireless-N 1000 Intel Corporation (HP pavillion dm4 - 2070us) is not working Laptop model - HP- dm4 - 2070. I had faced the same problem for wireless ...
0
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1answer
629 views

My Lenovo S12 laptop (Intel atom) is taking a very, very long time to boot. Can I fix this?

Basically it will not boot without holding down the power key. It has taken as long as 10 minutes.
23
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8answers
45k 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 ...
17
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4answers
67k 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
14
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1answer
2k views

Is there ongoing work in the kernel team to improve battery life under linux?

I have read in some forums that the kernel team is working on improving battery life and energy efficiency in linux. Unfortunately our community really lags behind windows and mac in that regard. I ...
13
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2answers
6k views

What is the 'ptrace_scope' workaround for Wine programs and are there any risks?

To run certain Windows programs in WINE you need to this workaround: echo 0|sudo tee /proc/sys/kernel/yama/ptrace_scope According to the support websites, this is due to a bug in the Ubuntu kernel ...
32
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2answers
12k views

What is kernel panic?

I just completed an OS course. I heard the phrase "kernel panic" a lot. Can you explain What is a kernel panic? Why does it occur? How can I find out that a kernel panic occurred? What effect does ...
11
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4answers
19k views

How to enable the Radeon dynamic power management feature?

So recently, the RC's of Linux Kernel 3.11 were released. As you may know, this new kernel comes with dynamic power management for users of the open source Radeon driver. Since I have power management ...
21
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3answers
38k views

Why to choose low latency kernel over generic or realtime ones?

After installing Ubuntu Studio 12.04, I found that it uses a low latency kernel. I searched why and how to change back to realtime or generic ones. But, looks like this part of Linux hasn't been ...
10
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1answer
7k views

Is there a way to disable kernel updates?

I run a more recent kernel (2.6.34) than the ones supplied with the Update Manager. I am tired of updates asking me to reboot every week or so and screwing my grub.cfg (this probably deserves it's own ...
11
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1answer
1k views

How do Fn keys work?

I like to know how Fn keys work in my laptop. I think a kernel module exist that catch fn key and call some scripts to do something. In my laptop, Fn+f2 switch power of wireless and blue-tooth. this ...
8
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2answers
20k views

How do I clean or disable the memory cache?

After the system starts, in a few minutes my memory cache fills up and it starts using the swap. Here's a screenshot of /proc/meminfo. However, if I can disable this process / clean the cache once ...
7
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4answers
4k views

How to automatically update burg after a kernel update

After every kernel update I have to run update-burg manually. How do I make it automatic?
2
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3answers
223 views

Should I allow kernel updates?

I am using Ubuntu 12.04 and the update manager appears daily with updates. I am ok with other updates but I want to know about Linux Kernel updates: Should I update to new versions, and why?
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vote
3answers
2k views

Ideapad Z580 won't boot kernels above 3.2.0-32

I'm running Ubuntu 64 bit 12.04.1 LTS. I see either a blinking cursor or a black screen if I try to boot all kernels beginning at 3.2.0-33 and later. Safe mode fails for those kernels as well. ...
14
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2answers
3k views

What is an kernel update with “Bump ABI”?

As you can see in the changelog for the Linux kernel, there are update messages like "Bump ABI - Maverick ABI 28". According to the Ubuntu Wiki, ABI is something like a bridge between the kernel ...
11
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2answers
4k views

What is kernel configuration?

Running PowerTOP on an Ubuntu 10.10 system, one of the suggestions are Enable the CONFIG_PM_ADVANCED_DEBUG kernel configuration option. This option will allow PowerTOP to collect runtime ...
10
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2answers
13k views

How to add kernel module parameters?

How to add a kernel module parameter in Ubuntu 11.04? Can I use the /etc/module file? If yes, how?
8
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2answers
8k views

what kernel version comes with ubuntu 10.04.1?

Could you tell me the version number of the 10.04.1 kernel?
7
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2answers
2k views

Why are there so many “linux-” kernel packages on my machine, and what do they all do?

In my usage of Ubuntu, I have noticed a baffling array of different Linux kernel packages. Some of them are listed below: linux-generic linux-headers-generic linux-headers-generic-pae ...
4
votes
3answers
8k views

Panic occurred switching to text console in netbook

Yes, I know that there is exactly the same question is asked here, but in my case I would like to provide more information in order to try to solve the problem. Because that question had been asked ...
4
votes
2answers
7k views

Need wired/wireless atheros driver for AR9285 and AR8152

How can I install atheros drivers to my Toshiba laptop (64bit), manually? I need AR9285 wireless adapter, and AR8152(v1.1) wired, fast ethernet. I cannot connect my UberStudent1.0 (linux OS, ...
3
votes
1answer
108 views

What is the technical reason preventing a simple upgrade (non-destructive) from 32 to 64-bit?

I was under the impression that upgrading from 32-bit to 64-bit required a new kernel. This would mean replacing the kernel is all that would be needed. Perhaps drivers and libraries need to be ...
3
votes
1answer
13k views

How do I downgrade kernel on 12.10?

I did a fresh installation of Ubuntun 12.10 (kernel v3.5.0.21-generic, 64 bit, US English) on my computer after downloading the ISO from Ubuntu.com. In order for one of my installed programs to work, ...
1
vote
5answers
613 views

12.04 LTS - Recent update: Fails to boot with version 3.8.0-37 generic [closed]

I'm not sure what happened but last night when the new updates were released and Software center prompt me I installed and rebooted as normal. Everything on my system worked fine until the updates ...
12
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3answers
14k views

How to kill the process that 'sudo kill -9' can't kill without reboot?

I have tried to kill the process: sam@sam-desktop:~$ ps -aux|grep sda Warning: bad ps syntax, perhaps a bogus '-'? See http://procps.sf.net/faq.html root 2898 0.0 0.0 0 0 ...
6
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3answers
1k views

What's the minimal compatible Linux kernel version required to run Ubuntu?

Why older kernel? For whatever reason out there, you might be forced to run another kernel than the ones provided by Ubuntu. It may even take you back a few years for a kernel that is compatible with ...
5
votes
2answers
16k views

Kernel panics with “Cannot open root device” error, where do I append the “root=” option?

whenever I try to boot with linux kernel 3.0.0.13 (the one installed by the upgrades) I get a Kernel Panic error: VFS: Cannot open root device "sda1" or unknown block (0,0) Please append a ...
4
votes
1answer
387 views

I was told on Launchpad to test a mainline Kernel. How do I do that (with NVIDIA drivers)?

I am coming from Bug # 868950 on launchpad, a kernel related problem. To analyse the problem a bit deeper and see where it comes from, I was told to try out a mainline kernel to see if the problem ...
3
votes
1answer
4k views

Is there any way to downgrade or revert an update to the kernel?

Today I installed the linux 3.9 Kernel update (because I heard it would fix sound through HDMI which I no longer have since installing 13.04). After restarted my computer and logging in my screen has ...
3
votes
1answer
5k views

nvidia drivers fail completely after update to 3.5.019

I'm running a duel-screen set-up and need the proprietary drivers because the standard ones won't drive the second screen at full resolution. After updating to 3.5.019, downloading the latest linux ...
3
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3answers
3k views

How do I restore an accidentally deleted initrd image?

I accidentally deleted the initrd image on my system. How do I restore it?
2
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1answer
715 views

Broadcom wireless 43142 conflict Atheros 8161 in kernel 3.5 (unbuntu 12.10)

I am exactly in the situation of this question. However, my wireless card is a different model: I have a dell vostro 3460 with an Atheros AR8161 Ethernet card and a Broadcom 43142 wireless card. I ...
2
votes
1answer
3k views

Installing the Liquorix kernel on ubuntu 12.04 x64bit

Has anyone had any luck installing the Liquorix kernel for 3.6.6 or any of the newer ones?? I want to install it on Ubuntu 12.04x64. Thank You.