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

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26
votes
3answers
42k views

What does the kernel boot parameter “set acpi_osi=Linux” do?

I am facing an issue with brightness control in my laptop which has Intel HD graphics and Ubuntu 10.10 64-bit. So when I searched for a fix I found that a common suggestion is to edit the GRUB file ...
0
votes
2answers
32 views

Change clock resolution to 1000 Hz

I am running Ubuntu 12.04 and I need to change the clock resolution to 1000 Hz (now it's 250 Hz, the default value). I understand that I have to set it and then recompile the kernel, as for example ...
2
votes
2answers
559 views

Installed 14.04 on a non-PAE (Pentium-M), but now I can't update (“This kernel does not support a non-PAE CPU.”)

Here is what I'm looking at. This isn't my computer. I repair PC's and I had an end user with this low powered laptop running XP so I decided to let him try out lubuntu. The install went smoothly with ...
0
votes
0answers
11 views

beautiful screenblinking with i915

I'm using Ubuntu 14.04 LTS 64bit on a Laptop. The problem is that screen keeps blinking like rainbow. This is what happened on my laptop http://www.youtube.com/watch?v=mOY4RDhi8sY My workaround was ...
0
votes
0answers
19 views

How can I remove lirc from 8.10 Kernel [on hold]

I wanted to compile my own kernel in order to use ZTE modem but everytime I try to compile the following errors are thrown: In file included from ubuntu/lirc/lirc_atiusb/lirc_atiusb.c:67: ...
0
votes
0answers
6 views

could not instal nitroid kernel

I try to instal nitdroid on my N900 cellphone and I got this error while installing nitdroid kernel, "creating item file for multiboot /var/lib/dpkg/info/ nitdroid-kernel-2.6.28-07.postinst: line 97: ...
0
votes
0answers
64 views

Ubuntu 14.04 freeze - Kernel panic & Fatal Machine Check

I've got HP ProBook 470 G0 and Ubuntu 14.04 64-bit. Originally, it was preinstalled with Linux SUSE Enterprise but I've erased and installed Ubuntu 14.04 (it was Alpha that time). Laptop was randomly ...
0
votes
4answers
41 views

Dual boot 14.04 with Windows 7on second disk (sdb), BIOS loader

I have Windows 7 on a separate disk (sdb) as it came from the factory. To protect it I disconnected it while installing Ubuntu 14.04 on the sda disk. Then I connected the sdb drive and expected to see ...
1
vote
1answer
3k 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 ...
13
votes
4answers
5k views

How can I upgrade my server's kernel without rebooting?

This is a loaded question because I'm already aware of, and am very interested in ksplice. The problem is that since they were bought by Oracle, they have been forced to pull numerous server ...
-1
votes
0answers
24 views

my Dell wireless does not detect wifi in ubuntu 14.04

I am using Ubuntu 14.04 LTS and my laptop model is Dell inspiron 15(3521).it wifi works perfectly fine on windows and ubuntu easily detects and connects to ethernet.But it does not even show the ...
0
votes
1answer
42 views

Ubuntu 14.04 Boot Problem

I am currently using windows 7 and wanted to try out Linux. I found out that Ubuntu is the most easy to learn Linux OS. So I create a Live USB of Ubuntu 14.04 with the help of the following link: How ...
62
votes
7answers
202k views

How can I install on a non-PAE CPU? (error “Kernel requires features not present on the CPU: PAE”)

After burning Ubuntu 12.04 to a CD, I tried booting and got the message: This kernel requires the following features not present on the CPU: pae Unable to boot - please use a kernel appropriate for ...
0
votes
0answers
24 views

synaptics driver not workin with new kernel?

after I upgraded from kernel 3.13.0-29 my synaptics driver seems to stopped working. basic touchpad functions still work (this includes moving cursor and clicking) but no right click nor middle click ...
3
votes
2answers
3k views

Why do I get disk I/O errors booting the 3.2 kernel on a xen vps server?

I have a xen vps, which I just upgraded to the new LTS 12 Precise Pangolin. However, I see this error on booting: [ 12.848076] end_request: I/O error, dev xvda, sector 12841 [ 12.848093] ...
1
vote
1answer
913 views

Errors compiling vmnet for VMWare Player, 3.13.0-27-generic

Update: This problem went away after rebooting in 3.13.0-29-generic. I am trying to install and run VMWare Player on Ubuntu 14.04, kernel 3.13.0-27-generic. I downloaded and executed the latest ...
0
votes
0answers
14 views

Installing HIDPoint on a newer kernel

I just tried to install HIDPoint on my 14.04 machine, to handle the special keys of my Logitech MX 3200. However, the installer won't play nice - it's complaining that I have an unsupported kernel. ...
1
vote
1answer
33 views

How (recipe) to build only one kernel module?

I have a bug in a Linux kernel module that causes the stock Ubuntu 14.04 kernel to oops (crash). That is why I want to edit/patch the source of only that single kernel module to add some extra debug ...
1
vote
0answers
16 views

How can I upgrade to Lubuntu 14.04.1 withot a PAE kernel?

On my Dell Latitude D800 laptop, which has an old Pentium M without PAE support, I was able to successfully install Lubuntu 14.04 from the CD. When I try to upgrade, I get the error: PAE not enabled ...
13
votes
3answers
26k views

“no symbol version for module_layout” when trying to load usbhid.ko

I am trying to build my own module for usbhid.ko, but after I compiled, I can't load the module. dmesg says no symbol version for module_layout. I am wondering what is the problem? I have already used ...
0
votes
0answers
130 views

Where can I find the corresponding Module.symvers and .config files for 12.04.3 i386 server?

I am currently using Ubuntu 12.04 LTS with kernel 3.2 on my x86_64 laptop. I must compile a driver for an i686 machine running Ubuntu 12.04.3 LTS with kernel 3.8.0-29-generic. The driver compiles ...
1
vote
0answers
69 views

Modprobe: 'Invalid nodule format', yet works after insmod

I am having a problem with Ubuntu 12.04 not properly recognising a custom made kernel module. The kernel module is a spoof of raw1394. So that programs that look for the presence of a raw1394 module ...
2
votes
1answer
456 views

Where to get nftables?

As far as I understand the kernel facility nftables exists in the kernel that comes with Ubuntu 14.04. As is proven by the following two commands: # grep -E '(NF_TABLES|NFT_)' /boot/config-$(uname ...
-1
votes
0answers
17 views

eSATA PCI card Ubuntu 14.04

I want to get an eSata PCI card and i saw there are compatibility issues with linux. I use Ubuntu 14.04 and I want to get this card. I have kernel version: 3.13.0-34-generic. I would like to know if ...
0
votes
1answer
13 views

How to get data from semi broken micro SDXC card?

I used to have a 64GB micro SDXC card in my mobile phone. But last week, after the phone crashed and I had to restart it hard, the SD card was not mounted anymore. The phone tried for 5 minutes but ...
-1
votes
0answers
16 views

how to do a case study of linux kernel? [on hold]

Where to start learning about kernel code.From the beginning?which version will be easy to understand the basics?
0
votes
1answer
72 views

How to boot load the kernel using EFI stub (efistub) loader?

I have Ubuntu 14.04 running in UEFI mode as only operating system, no dual-boot here. The kernel version is 3.13.0-24-generic. There is an EFI partition. In this case the EFI partition is not at the ...
0
votes
1answer
96 views

Make install error: You do not appear to have the sources for the x-y-z kernel installed

I am trying to install Dahdi on my newly installed machine, when I do a make install on the latest version, I get error: You do not appear to have the sources for the 3.5.0-25-generic kernel ...
11
votes
3answers
778 views

OOM killer not working?

For what I understand, when the system is close to have no free memory, the kernel should start to kill processes to regain some memory. But in my system this does not happen at all. Suppose a simple ...
11
votes
3answers
25k views

Is it safe to remove old kernels after installing the latest mainline?

I have installed the mainline kernel 3.10 as recommended here so that I can have my WiFi. I'm running into space problems as described here (dpkg configuration running out of space, having separate ...
0
votes
0answers
19 views

virtual install from ISO not getting virtual kernel

I have a KVM host (12.04.5) that I have been installing guests on in variety of ways. I just noticed recently one of my guests was running a generic kernel when I'm fairly certain I specified minimum ...
0
votes
0answers
6 views

.tmp_vmlinux1 error on Ubuntu (Kernel Compilation)?

Im compiling the google play edition stock kernel for the htc one m8 varient. The kernel is 3.4.0-gb1b6fb1 for android 4.4.4. Im using Ubuntu 14.04.1 LTS. I used the following command: make -j2 ...
3
votes
1answer
3k views

How do I target a specific driver for libata kernel parameter modding?

I'm running a 22-disk setup, 19 of those in a ZFS array, 15 of those backed by three port multipliers attached to SATA controllers driven by the sata_sil24 module. When running full speed (SATA2, 3 ...
0
votes
1answer
24 views

Modifying RaspberryPi as perfect linux box [closed]

I have just bought one Raspberry pi RaspberryPi. I want to load linux kernel there. Actually my plan is to first load kernel ver sion 2.6.* after that one 3.10.* above that and in boot time I want to ...
0
votes
0answers
29 views

Huawei E3276 LTE uplink slow in the routing Ubuntu, but not with other devices in the LAN

I have a Huawei E3276 LTE dongle (12d1:14fe -> 12d1:1506) and a problem with the upstream speed. The problem is not only present with Ubuntu 14.04 LTS (64 bit workstation, kernel 3.16), but also with ...
1
vote
1answer
701 views

14.04 Dpkg Found kernel: /memtest86+.bin issue

Hopefully I'm not violating any rules by opening new topic for the issue I've encountered. Trust me, I've tried browsing all over askubuntu and bunch of other sites, but none of offered solutions have ...
0
votes
0answers
18 views

Blank black screen with kernels newer than 3.8.0-19

I currently get a blank black screen with latest kernels. Even moving to any of the terminals (using Alt+Ctrl+F1) is not possible. I have tried both Ubuntu and Linux Mint, with the same result. I am ...
0
votes
0answers
18 views

Ubuntu 14.04 has a bunch of old kernel directories

I saw in Disk Usage Analyzer I have 3.13.0-xx for 8 minor versions of the kernel in /lib/modules. Each is around 200MB. I remember having to go through in Synaptic and remove those old Linux versions ...
0
votes
1answer
40 views

“Errors while handling” kernel packages after dist-upgrade [duplicate]

I did an apt-get dist-upgrade, now everytime I do something using apt-get, e.g. installing something, it gives me that there are errors while handling the following packages: ...
0
votes
0answers
13 views

Debugging random reboots

I'm running Ubuntu 14.04 with 3.16.1 kernel compiled from source, and when I leave my PC running for a long time, it always reboots after about 4-8 days. Nothing is displayed on the screen, everything ...
0
votes
1answer
25 views

dpkg reporting as installed, uninstalled kernels

I have run the following command to remove old kernels: dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d' | xargs sudo ...
0
votes
0answers
104 views

Error installing linux generic kernel ovh

I have recently purchased a vps from ovh and I was trying to install the generic kernel apt-get install linux-image-generic but I got an error. Setting up linux-image-3.13.0-34-generic (3.13.0-34.60) ...
1
vote
2answers
1k views

Why does hibernate not work after update from 13.10 to 14.04?

I have just updated my Xubuntu 13.10 to 14.04. Did not change anything. Suspend-to-ram (standby) and hibernate both worked well in 13.10. Now hibernate does not work any more (suspend-to-ram still ...
1
vote
1answer
87 views

How to compile a Linux kernel? [duplicate]

How do I compile a Linux kernel and how do I use the output file generated?
0
votes
0answers
13 views

glibc reinstallation with new kernel

Recently i removed some old kernel with autoremove function. But later found that i am getting error in configuring linux kerel. Also i googled and got that linux-libc-dev depends on old kernel ...
-1
votes
0answers
47 views

Error: after flashing the new image

I got the source code downloaded using below command phablet-dev-bootstrap --sources aosp --repo-branch phablet-4.4.2_r1 -c ./<my-dir> I've gotten the kernel and device folder synced, and build ...
0
votes
1answer
69 views

NVIDIA driver for Quadro FX 330 in Ubuntu 14.04.1, Kernel module load error

My Ubuntu computer (Pentium-D, 64-bit) has sofar worked well in Ubuntu upgrades. The only down-side of the old and exotic configuration has been that I need to compile the driver each time a kernel ...
0
votes
0answers
69 views

iscsitarget suddenly broken after upgrade of the 12.04 Hardware Stack

After an upgrade to the latest Hardware Stack using Ubuntu 12.04, my iscsi service is not longer operational. The error from the service is such: FATAL: Module iscsi_trgt not found. I have learned ...
0
votes
0answers
160 views

Updating kernel version from 3.2 to 3.8.0 wired connection not working in 12.04(LTS)

After updating kernel version from 3.2 to 3.8.0 wired connection not working in 12.04(LTS) $ uname -r 3.8.0-030800-generic $ ifconfig -a eth1 Link encap:Ethernet HWaddr 9c:2a:70:cd:f2:c5 ...
0
votes
0answers
19 views

wrong kernel running after install

I have installed Ubuntu 14.04 from unetbootin. When it reboots after the install, uname -r says: 3.5.0-17-generic ..this means that no modules have loaded for the kernel that is actually installed ...