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

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3
votes
1answer
20 views
+100

How to ensure user separation on an old school shell server

I want to run an old school shell server for a couple of people, ie. one where users get ssh access so they can run software (their own or provided). My concern is appropriate separation between ...
-2
votes
0answers
23 views

what is the command that deal with kernel in linux? [on hold]

what is the command that deal with kernel in Linux ? i want the All command that deal with kernel in Linux to my seminar so help me please.
2
votes
2answers
6k views

Error while starting ubuntu 15.04

After i have upgraded my Dell Latitude E5540 to Ubuntu 15.04 i have the following upon booting up ! Scanning for Btrfs filesystem [FAILED] Failed to start Load Kernel Modules. See "systemctl status ...
1
vote
1answer
6k views

Hostapd Failed to update rate sets in kernel module

I'm getting this error launching hostapd with minimal conf Failed to update rate sets in kernel module I've just installed Ubuntu-GNOME 13.04. When I was using Ubuntu 12.04 did not receive this ...
0
votes
1answer
10 views

How to rebuild kernel for wacom tablet driver?

I have installed Ubuntu 16.04 and my Wacom CTL-471 completely crashes the system every time I get near the surface with the pen. Every time I have to reboot, nothing helps. So I found out that these ...
0
votes
2answers
839 views

How can I resolve BUILD_EXCLUSIVE error in upgrade to 3.19.7 Kernel?

I ran the following commands to upgrade from 3.19.0 to 3.19.7: $ cd /tmp $ wget ...
0
votes
0answers
8 views

How to Restore Ubuntu 14.04 kernel and Replace `bcmwl-kernel-source`?

I followed unsuccessfully an advice in the thread Will 16.04 Support Wlan driver of Mac air? and run sudo apt-get update sudo apt-get install bcmwl-kernel-source sudo apt-get autoremove How can ...
0
votes
0answers
10 views

Kubuntu 16.04: Suspend works only once after reboot

After upgrading to Kubuntu 16.04 (with default 4.4 kernel), suspending works only once after reboot. Second attempt fails, the screen goes blank, but the power remains on. After a forced reboot, I can ...
1
vote
1answer
11 views

Source code of usbmon

Where can I get the source code of usbmon utility. Googling didn't help me to get the source code. Any help is appreciated.
0
votes
0answers
13 views

Ubuntu 14.04 LTS & Ubuntu 15.10 - ALERT! /dev/disk/by-uuid/… dropping into shell

I got this error after some days running ubuntu alongside windows 10. I am working on an acer laptop. I tried every expected solutions in other similar questions here, but none worked for me. So I ...
0
votes
0answers
5 views

zswap: default zpool zbud not available, pool creation failed

My system seems to be working fine, but in the interest of learning, I'm investigating the red bits of my dmesg. Here's one: zswap: default zpool zbud not available zswap: pool creation failed what ...
0
votes
2answers
33 views

How to set previous kernel as default in GRUB (Grub customizer)

Can you guys please help me use Grub Customizer to set an older version of the kernel 4.4.0 of Ubuntu 16.04 LTS as default when booting? I'm not using a dual boot system, and I have installed 4.4.8 ...
-2
votes
0answers
11 views

UPGRADE LINUX KERNEL 3.4 to 3.10

I am a developer but from few days i am finding way to patch linux kernel 3.4.111 to 3.5.1 at least but i can't find any way on google Thanks
1
vote
3answers
4k views

Ubuntu 13.10, kernel 3.11 blank screen issue with hybrid graphics

On my HP Envy, which has both an Intel on-chip graphics card and an Nvidia Geforce: *-display UNCLAIMED description: 3D controller product: GK208M [GeForce GT 740M] vendor: NVIDIA ...
0
votes
2answers
30 views

Difference between linux kernel and Ubuntu mainline kernel

As this wiki Ubuntu page says: By definition the mainline kernel builds are made from virgin unaltered mainline kernel sources and therefore do not, and should not, include any Ubuntu patches ...
0
votes
0answers
10 views

Access to hard-drive when machine won't boot

Recently I tried to downgrade my kernel (from 3.13 to 2.6.24), and I made sure that the 2.6.24 kernel compiled and installed without any errors. I also updated the grub file to boot with the newly ...
0
votes
1answer
17 views

how to use a kernel patch?

I have a problem with my sound card and there is a patch on git that seem to repair my problem. here the patch But I don't know how to use patch. Someone can help me? edit :I saw that how to build ...
1
vote
2answers
129 views
+50

Lenovo ThinkPad 11e Randomly Freezes on Ubuntu 16.04

I have a Lenovo ThinkPad 11e (with the Intel chipset not the AMD), that used to experience freezes randomly under 14.04 which have persisted after a clean install of 16.04. Description of the freezes ...
4
votes
2answers
287 views

Why do I get “Required key not available” when install DKMS modules in Ubuntu 16.04?

When I try to install DKMS modules like VirtualBox, Nvidia, or Broadcom drivers, they do not install and I get Required key not available. How can I fix it?
4
votes
1answer
689 views

apt-upgrade kernel-image with custom kernel

I'm running a kernel I compiled myself (because of this) and I'm wondering what apt will do with kernel updates? The software updater currently lists (among others) these points: Conmplete Generic ...
0
votes
0answers
21 views

System Log warning “wrong connector dpms state” Dell Inspiron 1525

I just installed Ubuntu 14.04 on a Dell Inspiron 1525 laptop (Intel Celeron(R) CPU 540 @ 1.86GHz processor, Intel 965GM graphics, 64-bit OS, 4 GiB memory). I am not having any noticeable operating ...
0
votes
1answer
24 views

How to remove new kernel and make older default (16.04)

I upgraded my kernel to version 4.4.8 in an attempt to enable suspend/hybernate, but in turn it decreased the battery life. So i want to either a. delete je 4.4.8 and revert to 4.4.0 kernel in my ...
0
votes
1answer
55 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: ...
0
votes
0answers
22 views

Kernel Panic while attempting to Install Lubuntu 15

In order to revive my old desktop PC, I chose Lubuntu as my next working environment. If i give preference to CD boot onto BIOS (usb not supported), it would fail. Nevertheless, I managed to boot ...
6
votes
7answers
1k views

Could not load 'vboxdrv' after upgrade to Ubuntu 16.04

I upgrade from Ubuntu 15.10 to 16.04 and since then VirtualBox 5.0.18 isn't starting my VMs anymore. It complains that 'vboxdrv' isn't loaded. So I try to load it and get the following error: $ sudo ...
0
votes
0answers
31 views

Upgrading to 4.6.0-rc6 kernel fixed my flickering screen issue but now WiFi doesn't work (Dell XPS 13)

I have a 2016 Dell XPS 13 (FullHD display, i5 version). It has a Broadcom wifi module (BCM4350) which you might know has pretty terrible Linux support. However, it is supported by the Linux kernel ...
1
vote
0answers
62 views

Battery life reduced after upgrade to kernel 4.4.8 (16.04 LTS)

I upgraded from 4.4.0 kernel to 4.4.8 due to unability to suspend/hybernate my Ubuntu 16.04 LTS on Lenovo z51-70 and now it would seem my battery life has somehow halved. I used to be able to have 2.5 ...
0
votes
2answers
678 views

vmware error after upgrade to ubuntu 16.04

I just upgraded to ubuntu 16.04 and I started having problems with vmware (v 12.1.0 build-3272444). When I try to play the virtual machine I receive the following error: Could not open /dev/vmmon: No ...
0
votes
1answer
23 views

Errors while compile a kernel for an android device

I hope you have a nice day, I'm new with this, just searched and searched about my situation but no answer, about 40 thread here and here no one helped me, so I am feeling shy to ask you this ...
0
votes
1answer
64 views

Kernel panic on boot after fresh install of 16.04

I had Ubuntu 15.10 running fine on my Thinkpad x200. The live USB of 16.04 runs fine, ran a check on it's files - checks out ok. Told the installer to format the ext4 drive and install 16.04 from ...
4
votes
7answers
20k views

ath10k installation

I have exhausted google on how to do this, compounded by being a beginner. I am trying to install this module. I have a nice new Acer Nitro (which will be even nicer once I remove dependency on win ...
24
votes
3answers
31k views

List of Ubuntu Versions with Corresponding Linux Kernel Version

Is there a list of Ubuntu versions with default corresponding Linux kernel versions somewhere? I would specifically like to know the most recent version of Ubuntu that still used Linux Kernel 2.x.
1
vote
3answers
998 views

Solved ! Grub Installation Failed Ubuntu 16.04 fresh Installation, Unable to Boot form USB

I was trying to fresh install Ubuntu 16.04 on DELL 3521, Previously i was using 15.04. System was getting slow so i wanted to install fresh, I deleted the /, /boot, /swap and recreated. There are ...
29
votes
2answers
31k views

What's a simple way to recompile the kernel?

I'm interested in compiling a new kernel under Ubuntu 12.04 x86 64 bit. I found this wiki page which is basically a mirror for this blog and there are a lot of steps (git, etc.) that appear useless ...
0
votes
0answers
17 views

packages have been kept back [duplicate]

When I run apt-get upgrade, I am presented with: The following packages have been kept back: apache2 apache2-bin apache2-data linux-cloud-tools-generic-lts-wily ...
0
votes
1answer
14 views

Does manual kernel update affect the next regular automatic update?

I installed the kernel 4.4.8 manually from http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.8-wily/ to circumvent a bug. Now I wonder what will happen when this kernel gets officially distributed by ...
0
votes
0answers
51 views

Virtualbox doesn't work after upgrading to kernel 4.4

At the time of installation, it displayed the following message Setting up linux-image-generic-lts-xenial (4.4.0.21.11) ... Setting up linux-headers-4.4.0-21 (4.4.0-21.37~14.04.1) ... ...
1
vote
1answer
167 views

Holding packages in Ubuntu 15.10, Unexpected un-hold

I held the Kernel so while updating, the newer kernel version weren't marked for installation until yesterday. It is a security update so I know is recommended to do this update but the question is ...
0
votes
0answers
26 views

Broadcom BCM43142[14e4:4365] driver doesn't work with kernel 4.4

After getting this question question closed I installed kernel 4.4 and the problem of the wireless card on Ubuntu 14.04 installation still remains unsolved. Any suggestion?
0
votes
2answers
186 views

gdb - load kernel module for remote debugging

Ubuntu 14.04 LTS: peter@peterubuntu0:$ insmod mymodule peter@peterubuntu0:/sys/module/mymodule/sections$ cat .text .data .bss 0x0000000000000000 0x0000000000000000 0x0000000000000000 So how do I ...
0
votes
2answers
29 views

unable to install applications from software centre. Installation failing

installArchives() failed: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "en_IN.ISO8859-1" ...
1
vote
0answers
11 views

What is memmap and how do you use it?

I have a faulty memory with a consistent offset, and according to UnixSE, I could use memmap to solve this problem by having the kernel avoiding this certain offset via memmap: ...
40
votes
1answer
3k views

Why doesn't the latest Ubuntu edition come with the latest stable Linux kernel version?

I have recently noticed that the latest version of Ubuntu does not come with the latest stable Linux kernel version. For example, Kubuntu 16.04 LTS comes with Kernel 4.4.0-21-generic while the latest ...
0
votes
0answers
24 views

Unsupported Linux Kernel on 14.04

While checking the support status on my Ubuntu Server, the currently used Kernel came up as unsupported: x@x:~⟫ ubuntu-support-status --show-unsupported [...] Unsupported: linux-headers-3.19.0-58 ...
0
votes
0answers
27 views

Broadcom BCM43142[14e4:4365] driver doesn't work with kernel 4.4.8 [on hold]

I was running my Ubuntu Trusty with kernel 3.16 but I thought of trying a newer kernel and decided to download and install kernel 4.4.8 generic and now the OS doesn't detect my Broadcom wireless card. ...
0
votes
0answers
32 views

Potential Solution for ASUS X455LB Touchpad not working after Resume

I'll preface this by saying that I'm still fairly novice to using Linux but am really keen on using/learning it. I've been having troubles with Ubuntu (15.10 and now 16.04) lately after I installed ...
0
votes
0answers
30 views

Not enough free space on /boot to upgrade 14.04 - already cleared kernels, what else is here? [duplicate]

When software tries to update, I get a message that there's not enough disk space on /boot. I've got rid of old kernels and emptied trash, but there still isn't enough space. According to gparted, the ...
0
votes
1answer
58 views

After install xubuntu 16, starting gives errors

The installation procedure was completely successful, but starting the new OS brings a lot of errors and blocks. Here some of the messages I see: Starting init: /bin/sh exists but couldn't execute ...
1
vote
0answers
104 views

Kernel Panic when setting up Ubuntu 16.04 with VirtualBox

FIRST NOTE: I tried the solution proposed by this topic, but it did not work. Besides, the fact that I've reinstalled Windows recently could (or could not) make my situation a little different. Some ...
2
votes
3answers
3k views

Ubuntu 13.04 installation issues: unable to handle kernel paging request error

I wish I could say that I’ve done more for the Linux community as of recent but I am very VERY new to all of this and I feel very much in over my head. I figured I would install Ubuntu. on my computer ...