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

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1answer
24 views

Recovery action for reserved kernel page: Failed

In a new install of Ubuntu 14.04.4 server, the kernel version is 4.2.0-27-generic, there are the following entries in the syslog file. MCE:0x10de:reserved kernel page still referenced by 1 users MCE:...
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1answer
18 views

/dev/ttyS* permission denied

Answers posted so far have not really addressed a good solution. Just installed 15.10 and get permission denied on bootup or reboot, even after changing them to crw-rw-rw from crw-rw----!
2
votes
1answer
18 views

How is a signed kernel image created? [closed]

There are two source packages in Debian: linux and linux-signed. The signed images show the latter as their source. But it is much smaller than the former. What's going on?
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0answers
50 views

Linux Ubuntu can't remove old kernels + cannot stat /lib/libiptc.so.3.0.a

I have a problem with Linux Ubuntu. apt-get autoremove Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: linux-...
2
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0answers
11 views

PPA upload of custom kernel package

Is there any documentation on how to build custom kernel packages and upload the result into a PPA? In particular, I would like to build mostly the stable upstream kernel (i.e. git://git.kernel.org/...
1
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2answers
44 views

how to patch the kernel from a repo

I would like to patch my kernel so that it would do zerocopy. I found this nice repo on github but i'm not too sure how to go about doing it. https://github.com/Basler/linux-usb-zerocopy it says on ...
12
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3answers
669 views

Why does Ubuntu 16.04 set all drive IO schedulers to “deadline”?

I just installed Xubuntu 16.04-64bit to a second partition on my laptop. I noticed it seemed a bit slow at times, so I checked which IO scheduler it was using for that drive, which turns out to be ...
0
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1answer
19 views

Boot-Repair gets a kernel-panic while scanning the system

I had some booting problems after installing Linux to dual boot, so I downloaded the Boot-Repair image from Sourceforge, put it onto a USB stick, and tried using it. I got to an ASCII menu, chose to ...
1
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1answer
35 views

what happens when mount a partition on /?

I have a partition /dev/sdb1 what happens after executing this command? sudo mount /dev/sdb1 / -o rw ^ I know that must change mountpoint "/" address as mentioned above. ...
1
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1answer
46 views

Thinkpad kernel panic when wifi switch enabled

I have a Thinkpad T410 laptop that I hadn't used in a while. I tried to install Ubuntu on it but the computer would freeze during install and the caps lock key would flash. I looked this up and found ...
0
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0answers
20 views

Ubuntu 14.04 to 15.5 upgrade corrupted my superblock

Whilst doing the automatic upgrade to Wiley Werewolf, my 32-bit Toshiba laptop (which has been running 14.10 for quite some time) corrupted the file system superblock. Now the kernel panics at bootup ...
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0answers
31 views

How to restore kernel in 16.04 LTS? [duplicate]

I accidentally removed the kernel from my Ubuntu 16.04 LTS while trying to update it. Now when I start it up, my Grub2 doesn't show Ubuntu as an option anymore. So I boot up the Live USB drive and try ...
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0answers
14 views

Linux headrers for 3.2.52-030252-generic-pae

I am using ubuntu 14.04 and want to install the headers. I ran sudo apt-get install linux-headers-$(uname -r) but I get Reading package lists... Done Building dependency tree Reading state ...
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0answers
44 views

class 'KeyError' (The package has no package named 'apt')

After selecting Ubuntu from boot-loader and entering password at logon, I see a new X on the app indicator side and got to know that the package named apt is missing. Here is the file with details ...
2
votes
1answer
121 views

Mouse & Touchpad Separate Settings Missing

Ubuntu 16.04: The settings menu used to have separate settings for external mouse and touchpad, now it only contains one set of settings for both. The settings for pointer speed actually do not change ...
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0answers
115 views

Linux Kernel 4.6.1 Nvidia Driver 340

I have recently upgraded my system to 16.04. I have the NVIDIA 340 legacy driver. I decided to get the Linux Kernel 4.6.1 from the Mainline Kernel repository (http://kernel.ubuntu.com/~kernel-ppa/...
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0answers
19 views

Adding system call in latest kernel

I tried to add a new system call in the system table. As per the documentation,there should be a directory like /arch/x86/syscalls. The syscalls directory is missing in kernel version 4.4.0-22-generic ...
1
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0answers
76 views

VMware player kernel module updater

I have installed VMware in Xubuntu 14.04.4 LTS, but when I open VMware, it gives me this: I click "Install", enter my password, then this shows up: And then it displays: How can I fix this? ...
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0answers
33 views

Ubuntu 14.04 connect wifi only with reboot after “sudo apt-get purge bcmwl-kernel-source”

The system can detect the wifi well, but it fails to connect it even with full signal bars. To connect Wi-Fi, every time I have to run: sudo apt-get purge bcmwl-kernel-source sudo reboot Then it ...
0
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0answers
13 views

Kernel hangs using a custom USB device on sd_revalidate_disk

My Ubuntu 14.04 with 4.2.0-36-generic is hanging on 100% kernel thread when using a custom prototype USB device( which is working fine on debian). The kernel thread is: Jun 3 17:09:09 sce-XPS13 ...
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0answers
17 views

copy to ext4 formatted drive HDD until 99.9% full, preventing fragmentation?

In general I do understand how ext4-fs manages it to avoid fragmentation, but one question remains after intense investigations... Situation: I have to copy many files of very different sizes to an ...
1
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1answer
37 views

ubuntu kernel git for xenial gives wrong source version

I'm trying to pull kernel sources from this location: http://kernel.ubuntu.com/git/ubuntu/ubuntu-xenial.git/ And I'm expecting to see 4.4.0-21/22 related sources. What I'm getting is 4.4.8 version ...
2
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1answer
37 views

Ubuntu 14.04 Doesn't Detect Internet on Dual Boot

This question has been asked before but I've tried all the other solutions and have not been having any success. I'm following this thread: Ubuntu can't detect wifi networks on macbookpro 13.3 So ...
2
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0answers
52 views

Wacom Intous Art Support on Ubuntu 15.10 wily

Kernel: x86_64 Linux 4.2.0-36-generic OS: Ubuntu 15.10 wily DE: KDE5 So I have followed several articles online from several google searches such as: https://forums.linuxmint.com/viewtopic.php?f=...
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0answers
31 views

Virtualbox Guest Additions and kernel version

I tried installing Lubuntu 14.04.4 (which is running on kernel 4.2) in Virtualbox, but when I installed the virtualbox guest additions (virtualbox-guest-dkms), the screen resolution still failed to ...
1
vote
1answer
42 views

Trying to install Ubuntu and got message about Kernels [duplicate]

We have a lot of computers that have been donated to our school, but they are all running very slow. I am trying to find a way to make the computers run better without costing us an arm and a leg. ...
0
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0answers
38 views

Error on compile CyanogenMod

I need help. After running make mrproper I can't build CM source in Ubuntu 14.04. It's throwing this error: build/core/tasks/kernel.mk:149: *********************************************************...
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3answers
149 views

How to make sure I stay on Linux kernel version 3.13 (Ubuntu 14.04)?

I just did a fresh install of Ubuntu 14.04 yesterday, because my WiFi adapter is not supported in 16.04. I am told this is likely due to the Linux kernel. In order for my computer's WiFi adapter to ...
0
votes
2answers
49 views

Force rescan of the pci device which was wrongly detected by os

I am using ubuntu 14.04.3 , kernel version 3.13.0-67 with a Atheros Wifi Card AR93xx .Many of the times ,no wireless detected on system boot. Below is the problem I detected . The wireless card ...
1
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2answers
67 views

Stop apt-get autoremove from removing old kernel?

I like managing kernels my self, and I can't figure how to stop apt-get autoremove from deleting older kernels.
1
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1answer
88 views

What to do after Failed to start Load Kernel Modules

I tried to upgrade my system from Ubuntu 14.04. My laptop froze for a few hours. Nor even the pointer did anything. So I switched off by pressing the power button for a few seconds. This uncompleted ...
0
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1answer
21 views

Kernel Panic - Ubuntu 14.04 crashes when playing call of duty

After playing Call of Duty 2 for about 5-10 minutes my computer crashes (with an Kernel Panic) and displays this message: What does this mean and how can I fix it?
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0answers
29 views

dkms problem with VirtualBox kernel registration after 15.10 to 16.04 upgrade [duplicate]

After upgrading an Ubuntu GNOME 15.10 machine to 16.04 I have encountered some problems with my VirtualBox and dkms installation. It seems that during the upgrade dkms had some problems registering ...
0
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0answers
25 views

Kernel panic - not syncing: attempted to kill init! and previous kernels do not work

I am new on using Linux. I use it for some imaging analysis. Today my ubuntu upgraded itself but at the end of the upgrade it gave error. After that the system blocked. I restarted the machine ...
0
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0answers
71 views

Black screen after upgrading to Ubuntu 16

I performed the Ubuntu 16 upgrade on my Dell Inspiron N5110 running Ubuntu 15.10 the other day, and I was greeted with a black screen. I got the noise it makes when the login screen comes up, but ...
3
votes
1answer
90 views

How to remove kernels from previous release

See question How to remove kernels from previous release? which is marked as duplicate. I ask this again, because the question is special case and not handled in the answers for the related question. ...
1
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2answers
99 views

ralink rt3290 driver module not launching and I can't figure out why

I have an HP Envy 15 with the RT3290 from ralink. It had Win8 on it which I have completely removed and installed ubuntu 16.04 on it. I have been trying to get the wireless to work and haven't been ...
0
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0answers
14 views

14.04 Multiple Crashes, Different Circumstances, How to fix?

I am running 14.04 on Hard Drive not Virtual (just for clarification). Sometimes I am doing something, anything, maybe browsing the internet or typing something, and then it gets frozen. I have to ...
0
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0answers
89 views

Ubuntu 16.04 fails connecting to a specific wireless network

I have a problem connecting to a specific wireless network, just could not connect or obtain an IP address. I'm running Ubuntu 16.04 on my laptop Thinkpad t400, with the network adapter Intel 5100AGN....
0
votes
1answer
86 views

Surface Pro 3 - installing kernel 4.6 [duplicate]

I am new to ubuntu. I just installed latest ubuntu and I am trying to install the latest kernel v4.6, so I can get a few functions of the type cover to work. I am not familiar with the kernel ...
0
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1answer
1k views

Updating to Kernel 4.6 on 16.04 [closed]

I have a fairly fresh install of Ubuntu 16.04 running on Kernel 4.4.0-22. Today I saw that the latest stable kernel version is 4.6 on kernel.org and I have a few questions: Is it worth ...
0
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2answers
44 views

Xubuntu Wifi driver not working after update

I'm running Xubuntu 14.04 LTS. I have a TP Link T4U USB wifi adapter, whic is based on the Realtek RTL8812AU chipset. It has been working flawlessly for a number of months, up until Linux kernel 3.13....
0
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1answer
38 views

Where is kernel.release generated and updated?

There a file include/config/kernel.release in Linux kernel source. It contains version of the kernel (for example 4.6.0-rc4+). As I know this value is generated from nearest tag of git. I want to ...
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votes
1answer
24 views

Undo installation of an unstable kernel [duplicate]

I am facing a problem with kernel installation. I installed two packages but the last one didn't. So I want to uninstall the first package. In this link I have described what was my problem. my ...
0
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0answers
10 views

Xenial Server is not quite working with 802.1x port-based authentication

Ubuntu server 16.04 with kernel 4.4.0-22. Cisco switch C3750 with 802.1x port-based authentication. Everything went fine until one day, our radius server died. When radius server was unreachable, the ...
0
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1answer
68 views

What is the lastest stable kernel and how to install it?

I face a problem with installing kernel 4.6 on Ubuntu 16.04 . Someone said because it was unstable. So What is the latest stable version of kernel and how to install it.
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0answers
38 views

Bad quality of package for installing linux kernel

I was trying to install kernel 4.6 on Ubuntu 16.04 but I face a problem I follow these steps How to Install Kernel 4.6 in Ubuntu: There are .deb packages for this kernel release available in kernel-...
0
votes
1answer
32 views

Compilation of Linux kernel 3.14 stops without any errors on ubuntu 14.04

I'm trying to compile linux kernel 3.14 on ubuntu 14.04. Before anyone points out, I know newer stable versions of the kernel are available but I have been asked to install 3.14 itself. So, I wrote a ...
0
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0answers
34 views

Kernel Panic not syncing: Is HDD corrupt?

when I start my laptop, I get a kernel panic every time (even in rescue mode or older kernel versions). I don't know what causes the issue it comes up since last shutdown. Bevore a basic command line ...
0
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0answers
11 views

Keyboard drivers uninstall after kernel update

I have a g710 keyboard which has extra buttons, so I have to install a driver https://github.com/Wattos/logitech-g710-linux-driver. The problem is, whenever a new kernel update comes out I have to ...