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

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2answers
8 views

How does 'apt' decide how many old kernels to keep?

I'm managing a couple of servers for core services (NTP, DNS, etc) and it just occured to me that one of the servers seems to keep the 3 latest kernels, instead of 2 on the others : nul@quark:~$ sudo ...
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0answers
11 views

Bluetooth with Kernel 3.18 on Ubuntu 14.04

I'm running the kernel me@me:~$ uname -r 3.18.0-031800-generic because I need support for MST. Since I've installed this, I cannot connect with my bluetooth headset(or mobile phone). For a short ...
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0answers
5 views

Recipe for target 'vmlinux' failed?

I'm attempting to build a kernel for QEMU to emulate a raspberry pi: http://xecdesign.com/compiling-a-kernel/ https://www.raspberrypi.org/documentation/linux/kernel/building.md However, running the ...
1
vote
1answer
15 views

Trying to access debian/scripts and debian/rules

I am trying to rebuild the kernel because I want to change jiffies to 1ms. I'm following a turorial and it is stated that I shall do chmod a+x debian/scripts/* but I can not find the debian folder ...
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0answers
24 views

How to “tell” Software updater, I have moved to a new kernel

I am running ubuntu 14.04 (updated from 12.04 which was preinstalled prior to the release of 14.04.02). I am an experienced non-technical desktop gnu/linux user, but relatively new to ubuntu. I ...
2
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0answers
13 views

rtl8192eu driver does not work

since the kernel upgrade to 4.0.1, because I had a version 3.1x, when you update the driver rtl8192eu not work for me, I get the following error make [1]: [_module_ / home / kevin / Desktop / ...
1
vote
1answer
26 views

How to add a Kernel from another distro

I've been using archlinux with a patched kernel on my surface pro 3. I switched to ubuntu now and want to use the kernel that includes all the patches from arch with ubuntu. What is the best way to ...
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0answers
27 views

>>>WARNING<<< Wrong ufstype may corrupt your filesystem

I was just now looking through /var/log/syslog and I found these line which worried me: ufs: You didn't specify the type of your ufs filesystem May 5 09:06:09 Bath-Towel kernel: [ 425.626221] May ...
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1answer
19 views

TSC unstable switching to hpet

Current clocksource is hpet, which simply does not work with the applications I am trying to run and acpi_pm gives the same errors. I need TSC to work. I already disabled intel_pstate and set failover ...
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0answers
14 views

What is the Goldfish Kernel?

I was snooping around the list of linux-* packages earlier and noticed that there are linux-{,image-,headers-}goldfish packages. Package description (below) didn't do me much good and Googling has ...
1
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1answer
50 views

How do I find the current stable kernel (HWE) for 14.04.2?

This question is related to this one also. So I want to understand how do I find the last stable kernel for Ubuntu 14.04.2? Because with point release 2 it still confuses me. This is my current ...
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1answer
53 views

Black screen after grub menu since 3.16.36 kernel update

After updating Ubuntu 14.04.2 LTS (64 bit) from kernel version 3.16.34 to 3.16.36, when I boot the system I can see the grub menu correctly, but if I choose the 3.16.36 kernel a black screen appears ...
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1answer
45 views

Can't upgrade kernal after installing Nvidia drivers

A while back I set up an installation of Ubuntu 14.04.1. Part of this process, I installed Nvidia drivers from the Ubuntu Software Center. Everything went ok and I never thought anything about it ...
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0answers
14 views

Kernel panic while booting preseed ISO for 14.04.2

https://help.ubuntu.com/community/Installation/UnattendedCD I'm following these instructions, attempting to set up a preseed install. When I boot the resulting ISO in vmware, it kernel panics: ...
0
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1answer
31 views

How come the kernel on up-to-date Ubuntu-14.04.2_LTS servers are not the same? 3.13 or 3.16

I have multiple servers running Ubuntu-14.04.2_LTS, just occurred to me that some are running the 3.13 kernel while others runs 3.16; all are maintained identically, so what would explain this?
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2answers
27 views

Remove kernel images [duplicate]

I need to free up some space in the /boot partition. Looking in another [thread][1] I found I should use sudo dpkg --list 'linux-image*' to locate and sudo apt-get remove linux-image-VERSION to ...
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0answers
9 views

Switching computers with a persistent usb

So, I'm Trying to create a USB drive to run the OS off of on several different computers, without installing anything to the computers themselves. I used pen drive Linux to create a boot-able USB and ...
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0answers
21 views

kernel panic-not syncing: VFS: unable to mount root fs on unknown block(2,0)

When I boot ubuntu 15.04 from usb, I got this problem: kernel panic-not syncing: VFS: unable to mount root fs on unknown block(2,0)
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1answer
14 views

Cannot run Ubuntu install dual boot from USB on X1 Carbon w/Win8.1 - kernel panic, VFS

I installed Ubuntu as dual-boot on X1 Carbon 3rd gen (with Windows 8.1, UEFI etc.; lets call it "Machine A"). I had some issue with Ubuntu there, so I removed like 3 partitions (from Windows tool) - ...
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0answers
43 views

Startup problem with Lubuntu 15.04

I installed Lubuntu 15.04 on my PC. It was running perfectly smoothly, so that a few days it is having a strange problem that happens sometimes, not all the time. What happens is that when I turn on ...
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0answers
72 views

amd driver catalyst 13.1 problem 15.04

I got a problem installing amd drivers. Here is the fglrx-install.log: Check if system has the tools required for installation. fglrx installation requires that the system have kernel headers. ...
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0answers
29 views

Kernel error message during boot [on hold]

Every time when I start my laptop I see these error messages: What is the cause for them and how can I fix this problem?
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1answer
40 views

“Failed to build vmnet” for kernel 3.19

Because this answer is only for kernel 3.13, so I'd like to share a solution for the problem Failed to build vmnet for kernel 3.19 and earlier versions. Thus this is not my actual problem and is only ...
0
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0answers
9 views

Docker and AUFS with custom kernel issue

I followed the steps on this website to get AUFS compiled in a certain way to use as my drive pooling solution but now Docker service won't start on ubuntu. anyone got any ideas please? ...
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2answers
34 views

Error message with virtuabox with ubuntu as host

I installed virtuabox from their site and now I get this error message when trying to run VBox The vboxdrv kernel module is not loaded. Either there is no module available for the current ...
0
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2answers
35 views

Wrong headers for Linux version

I have an ODroid U2 running Ubuntu 14.04 LTS and Linux version 3.8.13.30. I am trying to get my USB WiFi dongle working through this tutorial. However, at the sudo dkms install 8192cu/1.10 stage, I ...
1
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1answer
112 views

Why Ubuntu 15.04 with kernel 3.19.0-15 is using significantly more power?

I've recently upgraded to 15.04 and immediately noticed significantly faster battery depletion and warmer case. My MacBook Air 6,2 would easily hold 10-12 hours on battery power with Ubuntu 14.10 and ...
0
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1answer
185 views

mei_me initialization failed at boot up

I have an "mei_me" error at system boot-up. May 2 17:47:39 florian-Linux kernel: [ 11.867542] mei_me 0000:00:16.0: irq 62 for MSI/MSI-X May 2 17:47:39 florian-Linux kernel: [ 11.870423] mei_me ...
0
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0answers
23 views

Need to get files back after losing all the linux-image-generic

What I was doing (not as important, just wanna make sure all the info is out there) I'm on Ubuntu 14.10, decided to upgrade to 15.04. I had to delete xorg-xserver because it was broken and Ubuntu ...
0
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1answer
19 views

Restore ZFS automount

I've upgraded to 15.04 and I found the package ubuntu-zfs to be broken on systemd. I found the bug description on GitHub but I don't know how the procedure to be done as described: The correct ...
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0answers
41 views

There is a way to patch AMD catalyst 14.12 in order to make it work with kernel 4.0.1?

here I go: my OS is Ubuntu 14.04. I was wondering about upgrading the kernel to the recent and latest stable 4.0.1 version (my current one is 3.16). Since I have already installed AMD Omega drivers ...
1
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1answer
93 views

Ubuntu 15.04 kernel version

I recently upgrade from 14.10 to ubuntu 15.04 and I was expected also the kernel to be upgraded from 3.16 to 3.19, but this wasn't happened! Why this problem? can I do manually upgrade of kernel? ...
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0answers
10 views

Receive notification on new kernel release

I would like to receive a notification (preferably rss digest) on each stable kernel release in http://kernel.ubuntu.com/~kernel-ppa/mainline/ Does anyone have an idea how to parse a new update into ...
1
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0answers
65 views

Something's wrong with my grub.cfg

I know that's pretty generic, but... I installed updates, which included a new kernel. I removed an old kernel and got: joliver@JOHN-DEV:~$ sudo apt-get purge linux-image-3.13.0-46-generic Reading ...
1
vote
1answer
204 views

Error message on booting up Ubuntu 14.04.2 [duplicate]

After upgrading from kernel linux-image-3.13.0-49-generic to linux- image-3.13.0-51-generic, I am getting this error message in dmesg on startup: [ 6.352555] mei_me 0000:00:16.0: irq 47 for MSI/MSI-X ...
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0answers
28 views

purging old kernels fails to remove old initrd files

Can't explain why... I assume it isn't safe to simply manually delete them, so some guidance would be appreciated. Here's a ls of my /boot directory (obviously, I'm running the 3.13.0-51 kernel): ...
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0answers
11 views

Having problems with negative monitor channel, intimidated!

When I try this command: aireplay-ng -1 0 mon0 -a xx:xx:xx:xx:xx:xx I get this output: No source MAC (-h) specified. Using the device MAC (xx:xx:xx:xx:xx:xx) 17:51:23 Waiting for beacon frame ...
0
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1answer
205 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 ...
0
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0answers
22 views

cannot boot into login screen after uninstalling some kernel update packages

In Ubuntu 12.04, I tried to upgrade the kernel as required by a software XXX that I was installing. So as per XXX installation instructions, I installed these packages using apt-get: ...
2
votes
0answers
78 views

Slow boot on Ubuntu 15.04 during ACPI

The time seems to be wasted mainly between these two log lines. What could it be waiting for ? Apr 30 01:19:22 terodde kernel: [ 0.907820] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query honored via ...
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0answers
7 views

What exactly is command like “iso-scan” in grub?

In grub manual, it's not mentioned as a grub command. It passed right after linux command. The grub manual says about linux command: Command: linux file … Load a Linux kernel image from file. ...
0
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1answer
17 views

How to load a iptable matching module? Or is it required to load it expressly? Some related questions

I am running Ubuntu 14.04 LTS. I believe the following shows which iptables matching modules are loaded: sudo cat /proc/net/ip_tables_matches Question: I see conntrack listed three times. Why? ...
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0answers
52 views

ERROR: ../libkmod/libkmod.c:556 kmod_search_moddep() could not open moddep file

When I do the command iptables -L, I have this result : modprobe: ERROR: ../libkmod/libkmod.c:556 kmod_search_moddep() could not open moddep file '/lib/modules/3.8.0-38-generic/modules.dep.bin' ...
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0answers
18 views

ubuntu kernel-header issue : Couldn't find any package by regex 'linux-headers-3.14.32-xxxx-std-ipv6-64'

root@mylab:~# uname -a Linux mylab 3.14.32-xxxx-std-ipv6-64 #1 SMP Sat Feb 7 12:07:25 CET 2015 x86_64 x86_64 x86_64 GNU/Linux root@mylab:~# uname -r 3.14.32-xxxx-std-ipv6-64 root@mylab:~# dpkg -l | ...
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0answers
42 views

NVIDIA Driver Problem After New Kernel Build

I'm running Ubuntu 14.04 in my system. Recently I did a clean build from the source code and installed the new kernel but unfortunately when I try to start the new kernel, the desktop remains blank. ...
0
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0answers
9 views

Ubuntu kernel and microphone support

It seams the latest kernels used by Ubuntu do not support certain models of chips. I use Realtek ALC887-VD and my microphone does not work since the last kernel updates. I use 15.04, previously used ...
1
vote
2answers
219 views

linux-headers-3.16.0-36-generic can`t be installed (15.04)

I recently installed vmware player 6.0.5 for linux x86 and before installaton procces I run the command : sudo apt-get install build-essential linux-headers-$(uname -r) [sudo] password for bogdan: ...
1
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0answers
121 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 ...
0
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1answer
33 views

When in Linux boot process are filesystems mounted from /etc/fstab?

Question: When in Ubuntu Linux boot process are filesystems (from /etc/fstab) mounted? Rational: I defined the following shared-folders on my Ubuntu VirtualBox VM. openstack@ubuntu:~$ grep ...
0
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1answer
65 views

Laptop monitor plus two external monitors via dockstation

I have a Dell XPS13 (9333, Intel HD graphics 4400), running Ubuntu 14.04 and connected to a Dell monitor U2412M via VGA to mini DP. What I would like to do is to connect to another monitor (same make ...