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

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cannot upgrade linux kernel to newest version

My current kernel version shown by uname -r is: 3.5.0-17-generic. However, there are files related to newer version kernel 3.5.0-26 in /boot. So I want to upgrade the kernel to 3.5.0-26 by running: ...
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1answer
199 views

Kernel compilation of version 2.4 on a system running 3.2.0

My current kernel version on with my OS running on is 3.2.0. Can I compile a kernel of version 2.4.0 on it? Is there any perfect kernel documentation available? (As I see different ways of compiling ...
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1answer
6k views

How can I revert to the previous kernel version w/out dependency issues?

Since ubuntu updated my install to 3.2.0-37-generic, my laptop fan constantly runs. I never had this issue with the previous kernel versions. To fix this problem, I would like to revert back to the ...
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1answer
675 views

Lubuntu 12.04 cannot login via GUI after a kernel update and return error messages

After kernel update, Lubuntu 12.04 cannot login via GUI and return these error messages: stopping save kernel messages stopping system v runlevel compatibility
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1answer
5k views

How do I stop /var/log/kern.log.1 from consuming all my disk space?

I have a 80 GB HDD without any partitions. One day I realised that I have lost most of my free disk space. I discovered that /var/log/kern.log.1 takes up 25 GB of space and there is no delete option ...
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1answer
445 views

Save kernel on Acer Aspire One270 with Ubuntu 12.10 - Booting Issues

I did search the forums for quite some time, yet did not find any answer to my problem... I have an Acer Aspire One D270 with Windows 7 Starter and I've installed Ubuntu using the Wubi installer. ...
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1answer
219 views

Which kernel version to use if the latest has problems and what's next?

I had problems when I installed the latest updates on Ubuntu 12.04 a few days ago. My computer didn't boot correctly. I read many questions here and I got to work with an older kernel version: ...
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1answer
4k views

Logitech C920 camera keeps freezing

Everytime using this camera it crash my system and gets unblessing freez. But when use Windows it works. Why Ubuntu it crash and freez? Its a USB camera logitech C920? How can i solve this? ...
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2answers
1k views

Optimizing EXT4 performance

I'm using my machine to build stuff a lot and there's a specific directory that gets used very often. I've got 8GB of RAM, which is helpful for the build, but is far from enough to cache the whole ...
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1answer
1k views

WUBI Ubuntu 12.04 boot, No kernel, GNU Grub, nothing works

Yesterday my Ubuntu 12.04 (Wubi) system was working completely fine. But today when I tried to boot I was brought to a GNU GRUB screen. Typing boot yields no kernel specified or something along those ...
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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 ...
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2answers
945 views

how to build and configure kernel and file system for UML in Ubuntu 11.10?

I saw many links for for UML but all just pointed to install UML for fedora is there a way i could config UML in ubuntu using Ubuntu file system mine is a 64 bit computer.
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1answer
3k views

How do I pass “ACPI=OFF” to my kernel on boot?

When I tried to upgrade from 11.04 to 11.10 the system froze, so I've been playing around with a couple other linux builds (Fedora, Mint, and Puppy) the last couple days and I keep coming around to ...
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832 views

Virtualbox Installation Issues due to Missing Kernel Modules [duplicate]

Possible Duplicate: Unable to Install VirtualBox Due to Missing Kernel Module I have dual systems: Windows 7 and Ubuntu installed on my machine. Now I would like to install virtualbox under ...
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0answers
441 views

What kernels exist for Toshiba's ac100 and where to get them? [duplicate]

Possible Duplicate: Install on Toshiba ac100 I have an ac100 and know that there is the possibility to flash a custom kernel and boot Ubuntu that way. Also, there are several ...
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2answers
772 views

Error while removing the new kernel 2.6.37

I tried to install the new kernel but something went wrong and I'm trying to remove it now. The error massege is: mhd@Tarek-Laptop:~$ sudo apt-get install -f Reading package lists... Done Building ...
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1answer
612 views

Driver installation: compiling source code for newer kernel

I am trying to install a driver for this DAQ card, but when I execute (as in given documentation): insmod /usr/.../advdrv_core.ko i get this error: invalid module format As I found out, this is ...
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1answer
68 views

UFW not working in 16.04 server. Refers to earlier kernel module?

I am trying to move our mail server based on 12.04 to a brand new installation of 16.04 server. When I run sudo ufw status, I get: ERROR: problem running iptables: modprobe: ERROR: ...
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1answer
73 views

How to get the intel 3165 wireless adapter to work in Ubuntu 14.04?

I understand the 4.2 kernel supports this wireless adapter. But I need to stay in Ubuntu 14.04 for my own purposes, and so I need to make it work in here. All other solutions I've seen are for ...
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1answer
68 views

Generic 3.13.0-79 hangs on Ubuntu splash screen during boot [closed]

After the most recent update to Trusty my Asus X200CA no longer boots; it hangs in the Ubuntu splash screen. I can boot by going to advanced boot options and selecting the 3.13.0-77 generic; the ...
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1answer
191 views

Touchpad won't work after Kernel update

After the installation of Ubuntu 14.04 on my acer Aspire E 11 laptop the touchpad was working normally. Two days later I accepted the upgrades shown in the Software Updater, then it won't be ...
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2answers
251 views

Upgraded to kernel 4.2 but getting black screen after that [closed]

I had a mainline kernel 4.2.5 and based on the advise that i should not have a baseline kernel as in this thread I installed it via this command sudo apt-get install --install-recommends ...
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0answers
97 views

Build ubuntu-kernel-test mainline-crack v4.4 kernel fails to clean

fakeroot debian/rules clean step fails due to a missing ubuntu/ directory when building the Ubuntu kernel team's upstream branch of Linus' v4.4-rc8 . Is there another patch besides the three at ...
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1answer
205 views

Unload saa7164 module for Hauppauge 2250, and stop tvheadend to suspend Ubuntu 15.04

I'm a noob when it comes to using systemd. I'm running Ubuntu 15.04 with the Hauppauge 2250 TV tuner. Unfortunately, the driver/module for the 2250, "saa7164", is not compatible with suspend/resume so ...
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1answer
196 views

Can't remove or install kernel

I accidentally deleted my /boot partition but I was able to get it back with grub-install I'm trying to chroot and install the kernels again via this guide:How to restore a system after accidentally ...
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1answer
213 views

When updating from kernel 3.13 -> linux-image-4.2.0-22-generic the network was lost - how do I preserve it when updating the kernel

Happy New Year, hopefully. Earlier today I tried to update my kernel from 3.13xx to 4.2 in the hope of better performance on my computer. But after a restart I had no network. When i did ifconfig ...
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1answer
980 views

How do I install an old kernel?

I am running an instance of Ubuntu 15.10. I need to install the latest kernel used by Ubuntu 14.10, which I think is 3.16.0-28-generic. Entering sudo apt-get install linux-image-3.16.0-28-generic ...
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1answer
488 views

Laptop won't boot after upgrade to 15.10: The master control interrupt lied (any kernel)

I upgraded from 15.04 to 15.10 on a Lenovo Carbon X1 (3rd gen), and now when the laptop boots it stops with the message: [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied ...
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0answers
172 views

After Nvidia driver installation System Running on Low-Graphics

After I have installed the NVIDIA Driver I am unable to login to the Ubuntu 15.10. When I log in I get the error SYstem Running on Low Graphics Mode and from there I am unable to reconfigure the ...
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308 views

Kernel panic under Ubuntu 15.04 64bits "kernel panic-not syncing: VFS: unable to mount root fs on unknown block(0,0)”

I had a kernel panic on my MacBook Pro, which led me to erase everything from it, and install Ubuntu 15.04 (64-bit) on it, from the mini iso, with the choice of erasing everything on the hard drive. ...
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1answer
1k views

Downgrade kernel 3.19.0-26-generic to 3.13.0-62-generic

I need to downgrade kernel version in my Ubuntu 14.04.3 LTS production server from 3.19.0-26-generic to 3.13.0-62-generic. How I can do it in safe way ? I only have console access. Thanks
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1answer
75 views

Kernel advice and how to block unwanted downloads

Further to the question/comment “WINE FAILURE today”: The upgrade to kernel 3.13-59 was problematic. Following advice I upgraded my kernel to 3.19-25 which overcame my problem. Shortly afterwards ...
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107 views

Will not boot normally or into recovery

Newbie here. Yesterday I put Ubuntu onto my laptop. Most things were working fine, except the shutdown command would not power off the device. Today, it will not boot normally or into recovery. Normal ...
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131 views

Crouton Ubuntu 14.04 LXDE Can't upgrade kernel

I have an Acer C710 Chromebook which I installed Ubuntu 14.04 (with LXDE desktop environment) to via crouton. By default, it comes with kernel version 3.14, and I need to get it to 3.19 for there to ...
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2answers
3k views

Kernel panic when trying to install ubuntu

Summary: When trying to install Ubuntu i get Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) and the other questions adressing the same error doesn't help since all ...
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1answer
3k views

Starting version 219 after upgrading to 15.04

I upgraded to 15.04 just before the official release, and have since then been met with this message at boot : device descriptor read/64, error -32 and then : Starting version 219 I could ...
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1answer
167 views

How to upgrade the kernel correctly?

Running uname -r in a terminal gives an output saying 3.13.0-37-generic, but I am trying to upgrade the kernel to 3.16, and indeed I have ran sudo aptitude safe-upgrade which installed ...
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3answers
3k views

CPU frequency control

I have a kubuntu 14.04 with the latest HWE kernel (3.16.0-31-generic), and a Xeon 1246v3 processor (which is basically an i7 4770 with ecc support). The processor has base frequency of 3.5 ghz, and ...
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0answers
26 views

Why is my kernel not upgraded to the latest version? [duplicate]

My server runs Ubuntu 12.04.5 LTS. I try to keep it up to date as possible by doing sudo apt-get update && sudo apt-get upgrade regularly. So far I was assuming that this would update the ...
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1answer
2k views

Reinstalling the 14.10 standard kernel

I tampered a bit with the 3.18 kernel and would like to go back to the standard out of the box kernel of 14.10. How can I do this in a proper way? I executed already sudo apt-get install ...
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1answer
1k views

Issue with linux-image-3.13.0-44-generic & linux-image-extra-3.13.0-44-generic [duplicate]

I've been using Ubuntu Server for a few months now. I'm getting the below OUTPUT after running sudo apt-get -f upgrade: Reading package lists... Done Building dependency tree Reading state ...
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2answers
448 views

I think I accidentally removed the current linux kernel when trying to free up space in /boot

Sorry for being a bit long-winded, but I am not sure what has happened so I'll try to state what has happened as completely as possible. I am currently logged in to the system and it's running. It is ...
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2answers
2k views

How to reinstall kernels after accidental deletion with a separate boot partition and an encrypted LVM volume?

My installation is a Ubuntu 12.04 64 bits (Classic "legacy" MBR - No EFI/UEFI here) with two partition : A separate boot partition An encrypted LUKS volume that contains the system Logical Volumes ...
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1answer
5k views

How to unload a kernel module which is in use?

I'm following this tutorial to get my card reader working: http://ubuntuforums.org/showthread.php?t=636867 However I'm unable unload my sdhci module: sudo modprobe -rv sdhci mmc_core mmc_block ...
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1answer
856 views

kernel panic occured after installing wifi driver

I have exactly this problem. I retype some of it in case link goes offline. I have notebook lenovo E540. I think I'm using 14.04.1 LTS (didn't check) and kernel 3.13.0-35. My wifi stoped working after ...
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1answer
81 views

What kernels & packages do I un-install?

Okay, my wife's computer is apparently running out of space on /boot and from what I can tell in similar questions, it's related to unused kernels (which makes no sense, considering it's a fresh ...
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1answer
2k 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 ...
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2answers
1k views

Followup question: How to get fix for trackpad bug from 3.15 kernel?

This is a followup question to Touchpad not recognized on new Ultrabook In that question, asker had trouble with the trackpad not working on Samsung ATIV Book 9 2014 Edition (NP930X5J/NP940X5J) with ...
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1answer
394 views

Which Ubuntu (git) linux kernel tree matches my installed kernel?

Answering a recent question, and before that, trying to see if a patch which is fundamental for my machine had been included in a kernel release, I have found the following problem: How can I match ...
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21 views

Only background is visible after kernel update [duplicate]

After I updated to the newest kernel, at least that's what I think it was, it said ubuntu base as the description, I rebooted like it asked and when I typed in the password, my background stayed, but ...