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

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0
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0answers
691 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 ...
4
votes
2answers
12k views

No ACPI support for my PC, what can I do?

On my new PC something is wrong with ACPI support under Linux. I have to boot it with acpi=off and nolapic. Also it detects only one CPU core (this annoys me the most) and won't shut down completely, ...
5
votes
1answer
6k views

Using quad core, but only 1 CPU entry in `/proc/cpuinfo`? Is SMP running on my computer?

I just upgraded my system and did a clean install of Ubuntu when I did (Installed Oneiric Ocelot from the CD last week but yesterday upgraded to 12.04 LTS). I have an i7 920 (quad core with ...
2
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2answers
4k views

upgrade kernel using terminal in ubuntu

Is there any possibility to upgrade the kernel by using command in terminal in ubuntu? If yes, then please reply. Please tell if possible that how command works? thanks
2
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1answer
655 views

What does Ksplice actually do?

So I installed Ksplice on Ubuntu 10.04: # download the installer wget https://www.ksplice.com/uptrack/dist/lucid/ksplice-uptrack.deb dpkg -i ksplice-uptrack.deb # install dependencies apt-get ...
56
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4answers
83k 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 ...
3
votes
2answers
4k views

Why do I get disk I/O errors booting the 3.2 kernel on a xen vps server?

I have a xen vps, which I just upgraded to the new LTS 12 Precise Pangolin. However, I see this error on booting: [ 12.848076] end_request: I/O error, dev xvda, sector 12841 [ 12.848093] ...
7
votes
1answer
428 views

Where to obtain Ubuntu Supplied Third-Party Device Drivers Patches to apply them to vanilla kernels?

For testing purposes I usually download the ubuntu kernel available from git and build it for my PC. But usually the stable version of Ubuntu kernel is not always in sync with the latest stable ...
31
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6answers
59k views

VirtualBox doesn't load after 12.04 upgrade

After upgrading from 11.10 to 12.04, virtual box stopped working. I've run the following to try to fix it: sudo aptitude update sudo aptitude install dkms sudo /etc/init.d/vboxdrv setup but when ...
8
votes
4answers
11k views

Why did my upgrade to 12.04 fail with “glibc not found” or “libc6” or “requires kernel 2.6.24” error?

I upgraded my server installation form 11.04 to 11.10, then to 12.04 over ssh. All seems almost ok - but there is a small issue with glibc, which is messing up my apt. I tried sudo apt-get install -f ...
0
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1answer
380 views

Clean up files after a process dies

I have an application that does a lot of forking, and every fork uses quite a lot of temp disk space. Currently, all of this space is used in /tmp. For various reasons, I want to clean up these tmp ...
0
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1answer
20 views

Docking G2 to ubuntu for syncing and running apps

Hey guys I would like to dock my phone with ubuntu and run everything from thie. However I don't have the docking station and would like to know if I can use the usb since I don't have the docking ...
2
votes
1answer
1k views

How to install linux-libre-3.3 kernel?

Linux-libre 3.3 kernel released on last month. is it possible to install linux-libre 3.3 on my ubuntu 12.04 beta 2 64 bit version. Advance thanks for all gnu free software developers.
1
vote
4answers
778 views

How do I install the 3.2 or the 3.3 kernels in 11.10?

I have a Aspire One A0751h net-book that uses the EMGD 1.10 driver and at the moment i'm running Ubuntu 11.10 with Kernel 3.0.0-17-generic. But i was wondering if i could upgrade the Kernel to 3.2 ...
15
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2answers
8k views

Can I copy large files faster without using the file cache?

After adding the preload package, my applications seem to speed up but if I copy a large file, the file cache grows by more than double the size of the file. By transferring a single 3-4 GB ...
7
votes
3answers
7k views

Why is 12.04 using a PAE dependent kernel by default?

Recently when I was trying Ubuntu 12.04 beta I got to know that it was using a PAE kernel, but I am not sure of the reason. Why has Ubuntu shifted to PAE kernel ? Also Is there a non PAE version ...
1
vote
3answers
855 views

Error with Kernel 3.3.2 in Ubuntu 12.04 Beta 2 64-bits (with the updates to the date)

Today had decided to install the latest stable kernel from mainline Canonical from this link. The latest stable kernel is 3.3.2, then I downloaded the *.deb's for my 64-bit version, and downloaded to ...
13
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3answers
4k views

Why is 12.04 removing the -server kernel flavour?

Ubuntu is removing -server flavour, as specified on release notes of 12.04: ...
1
vote
2answers
8k views

Ubuntu 12.04 does not start GUI [closed]

I have just upgraded my installation of Ubuntu 12.04 beta, and now I won't start the GUI. If I go into "Previous versions of Linux" from the boot-menu I can start the old upgrade without problems. The ...
1
vote
3answers
466 views

Can't boot in kernel 'linux-image-genric 3.0.0.17.20'

I have three Linux kernels installed: 12, 16 and 17. Kernel 12 and 16 are working fine. But when I try to boot into linux-image-generic 3.0.0.17.20, a red screen appears and after that, nothing ...
1
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1answer
5k views

Error when I compile kernel 3.3.2 in ubuntu 12.04

I thinks is not a bug of ubuntu. This is the output: OBJCOPY arch/x86/boot/vmlinux.bin HOSTCC arch/x86/boot/tools/build BUILD arch/x86/boot/bzImage Setup is 16800 bytes (padded to 16896 ...
1
vote
1answer
283 views

Lost the system tray-bar and side panel dockbar disappears when touched

I have complete confidence that this problem will be resolved by restarting, however, it seems very odd that it should disappear randomly during my session. To put it simply, I've lost the top ...
0
votes
1answer
217 views

grub appears to using the kernel insmod, is this possible?

I am trying to learn the GNU/Ubuntu-Linux in a detailed way. I was reading 00_header, which run first when grub loads, and I saw for i in ${GRUB_PRELOAD_MODULES} ; do echo "insmod $i" done As I ...
1
vote
2answers
566 views

Kernel source version number does not match

I am using Ubuntu 11.10. When I type 'uname -r' in the terminal, I get: 3.0.0-15-generic I want to download the kernel source for the particular kernel version I am running. When I look on ...
0
votes
1answer
2k views

Errors were encountered while processing: linux-image / headers / generic

I tried to update my machine through the Update Manager and found some errors. First, before I get to the problem, I feel I should mention that my OS (10.04) is mounted on a portable HDD that boots ...
1
vote
2answers
4k views

Kernel module compilation fails when installing vmware tools

When I install WMWare tools, I get this error for vmhgfs: /tmp/vmware-root/modules/vmhgfs-only/filesystem.c:47:28: fatal error: linux/smp_lock.h: No such file or directory compilation terminated. ...
-1
votes
1answer
246 views

Ubuntu 11.10 Rebooting Fails

I have ubuntu 11.10 installed on my netbook. When try to restart my computer the ubuntu logo opens and it attempts to restart. However after the ubuntu screen disappears it goes to a black screen and ...
1
vote
1answer
759 views

How to Run files and open folders as an administrater 11.10

Solved!!! Enable open as administrator in nautilus! To get started, press Ctrl – Alt – T on your keyboard to open Terminal. When it opens, run the commands below: enter code here sudo apt-get ...
3
votes
3answers
215 views

I know my root password, so where do i type it to open this file?

I have my root password, and just installed a keylogger for myself and after losing a long chunk of text i worked really hard on to a program crash. The keylogger installed just fine, using my root ...
1
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0answers
352 views

Update Manager Not working due to missing CD-ROM [duplicate]

Possible Duplicate: Failed to download repository information due to missing CDROM W:Failed to fetch cdrom://Ubuntu 11.10 Oneiric Ocelot - Release i386 ...
9
votes
3answers
3k views

Reasons why not to update an Ubuntu version to a newer/older kernel version [duplicate]

I had several friends ask me to update their Ubuntu to a newer kernel without changing the version of Ubuntu. So for example, staying in 10.04 with the 3.3 Kernel version. When having an older or ...
1
vote
1answer
5k views

Installing latest stable kernel (3.3.1) in Ubuntu 11.10

Good evening everyone. Sorry if this question already have being answered but I used ALL my Search power. For example I want to install latest kernel (which is 3.3.1 right now according to ...
0
votes
1answer
1k views

Acer Aspire One 722 Touchpad Too Sensitive After Upgrade

I just recently got an AO722 and installed Ubuntu 11.10. I was aware of some of the problems with the net-book so I set about tweaking things accordingly. I followed many of the instructions here ...
0
votes
2answers
4k views

How to downgrade kernel image?

Recently I updated my linux kernel from 3.0.0-17 to 3.0.0-18. And now chromium keeps giving me a segmentation fault and so does ubuntu-bug and even nautilus. Now I want to downgrade back to 3.0.0-17 ...
65
votes
8answers
229k views

How to update kernel to the latest mainline version without any Distro-upgrade?

Currently I'm running Linux-3.0 and I want to update it to Linux-3.3.1 the latest stable kernel release as mentioned at http://www.kernel.org. Can I update to 3.3.1 in Ubuntu without any risk of ...
3
votes
2answers
799 views

EC2 Kernel without rpcsec_gss_krb5 mod

I'm looking into setting up NFSv4 with kerberos (via this). I believe I have everything working except I'm running kernel 3.0.0-16-virtual which doesn't seem to include rpcsec_gss_krb5. Which causes ...
-1
votes
1answer
310 views

Nautilus, Synaptic and System Settings crash after kernel version 3.0.0-18-generic installed

On both my laptops I am getting regular crashes of Nautilus, Synaptic and System Settings after an upgrade to kernel 3.0.0-18-generic. As usual, I deleted 3.0.0.17 to save space on my drive -- that ...
1
vote
2answers
270 views

Can I use a newer ubuntu version with an OLDER kernel version?

Reasons for this is cause an app I use supports only older kernel versions.And I need newer Ubuntu versions cause they're supported(still have repos)and support for gnome shell.I currently use Ubuntu ...
7
votes
1answer
10k views

Unaligned AIO/DIO

I am getting this error on my Ubuntu Server installation: kernel: [6622929.119915] EXT4-fs (sda1): Unaligned AIO/DIO on inode 43648079 by java; performance will be poor. Is this a kernel bug? How ...
2
votes
1answer
8k views

Ubuntu apt-get install linux-image

I'd like someone to enlighten me as to what exactly goes on with aptitude when I want a kernel. As we all know, there's pretty much the following kernel option: linux-image-generic ...
0
votes
2answers
4k views

Wifi works but doesn't start automatically on ubuntu 11.10

Good evening everyone, I have got an issue which I hope you will help me to solve. I was trying to update my Kernel in ubuntu from this web-site ...
22
votes
4answers
2k views

What has Ubuntu contributed to the Linux Kernel?

This question is similar to this one: What unique enhancements and features has Ubuntu brought to the Linux Community but in this case it is directed towards what has Ubuntu contributed to the ...
79
votes
7answers
286k views

How can I install on a non-PAE CPU? (error “Kernel requires features not present on the CPU: PAE”)

After burning Ubuntu 12.04 to a CD, I tried booting and got the message: This kernel requires the following features not present on the CPU: pae Unable to boot - please use a kernel appropriate for ...
1
vote
1answer
460 views

Asus Zenbook: how do I apply the bluetooth patch for 11.10?

Note: There is no need for a patch if you are running Ubuntu 12.04 I am following these instructions to recompile a kernel with working bluetooth for my Asus Zenbook UX31E. However, when typing ...
1
vote
1answer
347 views

Why do upgrades remove my r8168 module?

I had terrible problems with Realtek RTL8111/8168B Ethernet which were solved by blacklisting the r8169 driver and instead using the r8168 driver that I downloaded from Realtek. However, it seems ...
1
vote
1answer
2k views

Reinstalling kernel images

I had a situation where I found that /boot had filled up. So I cleared up some space, then reinstalled the most recent kernel images in case the kernels were corrupt. I used: apt-get install ...
3
votes
2answers
1k views

Status of tuxonice in 12.04?

Ubuntu 12.04 contains tuxonice-userui package (userspace utilities for TuxOnIce), but fails to provide tuxonice-patched kernels - making the former package useless. What is the status of TuxOnIce in ...
8
votes
2answers
34k views

kernel panic not syncing vfs unable to mount root fs on unknown block oo swapper not tainted [duplicate]

I updated my laptop (Ubuntu) to 11.10 and I don't know what went wrong that when I restarted the computer It would start and it would only tell me. kernel panic not syncing vfs unable to mount ...
4
votes
2answers
441 views

Can ubuntu run on any other kernel

Is there any kernel on which we can run Ubuntu??Like in some case Debian can run on BSD kernel (if I am correct) If it is possible how can I proceed
1
vote
1answer
272 views

Compile Linux Source in /home

I went through many Linux kernel compilation tutorials ... All of them suggest to put the kernel code in /usr/src . Is it for any special reason ? What happen if i compile code in /home ? Because my ...