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

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1answer
13 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) - ...
1
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0answers
7 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 ...
1
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1answer
4k 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 ...
0
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1answer
130 views

Can't build Ubuntu Kernel: Why does “make mrproper” get rid of debian directory? How do I build a Ubuntu/Trusty kernel without debian/rules?

I've been trying to build a Ubuntu Kernel for the past several weeks. (Actually, I don't need the kernel, I just need snd-aloop.ko, which is missing from the Ubuntu 14 server distributions, it's in ...
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0answers
51 views

3.19.3 kernel driver for 174f:14b2 (syntek)

I am not able to find driver for my integrated webcam - please advise if anyone faced similar issue and was able to resolve it. Details: lsusb sees the device as 174f:14b2 Syntek PS.: stkwebcam ...
13
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3answers
2k views

Why doesn't apt-get autoremove remove my old kernels?

My boot partition is on a SSD, so it doesn't have room for more than about 8 installed kernel versions, and eventually some kernel update will fail to install because my boot partition is full of old ...
0
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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 ...
1
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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 ...
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 / ...
4
votes
1answer
258 views

Cannot find classmap.h

When i execute: make modules i get the error: make[1]: Nothing to be done for `all'. make[1]: Nothing to be done for `relocs'. CHK include/generated/uapi/linux/version.h CHK ...
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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 ...
1
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1answer
43 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 ...
0
votes
1answer
29 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?
0
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1answer
42 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 ...
0
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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 ...
0
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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
vote
1answer
47 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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2answers
2k views

Setup Error: end kernel panic - not syncing: vfs: unable to mount root fs on unknown block(2,0)

I want to install ubuntu 14.04. When i press "setup ubuntu" the error "end kernel panic - not syncing: vfs: unable to mount root fs on unknown block(2,0)" is appears Even if do not do anything this ...
1
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1answer
3k views

With Kernel 3.5.0-21 the wireless card Realtek RTL8723AE-BT stop working

Yesterday, I updated my Ubuntu 12.04 to the Kernel 3.5.0-21 and the wireless card stop working... In other threads I saw the same problem with another kernels. Anyone have the new driver? I sent a ...
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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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: ...
1
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1answer
109 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 ...
1
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0answers
8 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 ...
0
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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 ...
1
vote
1answer
681 views

problem with systemd installation

I tried two different methods but could not install systemd 1st method from here, 2nd method from here Confirmation that systemd is not installed: edward@computer:~$ file /lib/systemd/systemd ...
1
vote
1answer
89 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? ...
0
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0answers
19 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)
1
vote
1answer
193 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 ...
0
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0answers
27 views

How to change the Delayed Acknowledgement timer? (14.04) [migrated]

I am trying to set different values for the timer of the Delayed Acknowledgement and see the different behaviors at packet level. I expected this to be a kernel level option but I can't locate ...
0
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0answers
42 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 ...
0
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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 ...
1
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0answers
69 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. ...
4
votes
4answers
2k views

After deleting some old kernel

I deleted some essential kernels parts to enlarge the free space on my boot partition. First I proceed as in this link. However the problem is not exactly the same as in the link (see answer from ...
-1
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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?
0
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1answer
39 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? ...
0
votes
1answer
170 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 ...
1
vote
2answers
216 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: ...
0
votes
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
vote
1answer
51 views

Ubuntu 14.04.2 i386 boot hang after installation but fix by using live USB's initrd.lz

Linux newbie here, and would like some support from the community for a boot problem I am seeing. I recently put Ubuntu 14.04.2 (i386) on a AMD Kabini AM1 5350 CPU + Gigabyte AM1M-S2H mobo using live ...
0
votes
1answer
17 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 ...
1
vote
1answer
294 views

nVidia drivers on 15.04 kernel 3.19 stalling system load

all. I recently bombed my Zorin OS 9 system by unsuccessfully installing kernel 4.0 so I decided to go back to Ubuntu - which I haven't used since 10.04 - and am stumbling across some issues. First is ...
0
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0answers
38 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 ...
6
votes
1answer
9k views

Boot Error - ACPI PCC Probe Failed

ACPI PCC Probe Failed is the error that pops up instead of the default GRUB loader after I updated my kernel to 3.19. I searched around and couldn't find much information except that it is a known ...
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 ...
0
votes
1answer
199 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
votes
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 ...
43
votes
4answers
23k views

How do I install and use flashcache/bcache to cache HDD to SSD?

I want to know if there is anyone who has tried installing and running their kernel built with flashcache or bcache for SSD caching? How did you manage to do it?
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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 ...