1
vote
2answers
182 views

Are there multiple LTS distributions available?

My distributed network consists of atleast 10 servers, all of which are running Ubuntu 12.04 LTS. This was a design decision, so that we would have a more consistent back-end, as far as the Operating ...
0
votes
0answers
28 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 ...
1
vote
0answers
43 views

Ubuntu EC2 compatible kernels

I am trying to create an Ubuntu 13.10 64 bit AMI with the paravirtual type of virtualization. I have not had problems with the hvm virtualization. I can't figure out what kernel I need to use. For the ...
0
votes
1answer
31 views

Ubuntu server internal specifications [closed]

i'm doing a homework assignment for my college, and I'm trying to find the parameters used in kernel compilation on RedHat. My teacher asks: "Analyse and describes in terms of models of each version ...
0
votes
1answer
131 views

kdump fails to log server crash event

I'm running Ubuntu Server 14.04 on a machine that is experiencing random crashes under load. The server doesn't restart independently, but it becomes inaccessible via ssh or direct KVM connection. I ...
0
votes
0answers
19 views

Copying kernel and initrd problem while setting up a server

I'm trying to set up a server using PXE and following this (clickable) instruction. But I have a problem in part Creating your NFS installation Right here: Copy kernel and initrd to tftp root. ...
0
votes
1answer
57 views

How to update kernel after ubuntu server 10 -> 12 update

I have a remote VPS which had ubuntu server 10.04 installed (for some reason the hosting company doesn't have 12.04 yet) I recently downgraded my hardware to a VPS from a dedicated machine and ...
0
votes
1answer
43 views

Where does dm crypt keeps crypt list?

If we enable encryption via cryptsetup tool on linux. Where does it keeps the crypt list/ encryption disk sector information etc ? Is it resides inside the LUKS header or device mapper kernel itself ...
0
votes
0answers
49 views

Unstable Brix Box Control Servers. Advice?

We are running Brix Box control servers that connect to a mesh via a Telegesis dongle and live as minions on a SaltStack that have proven unsteady. I have one on my desk that looks to be having a ...
1
vote
0answers
32 views

All motherboard ports non-functional after upgrade from 13.10 to 14.04

I'm using Ubuntu Server - I've been running 13.04 for about a year. Since it's no longer supported, I did a release upgrade to 13.10. That went smoothly. I then did another upgrade from 13.10 to ...
0
votes
0answers
430 views

ureadahead main process terminated with status 5

Having struggled for the last few days with a kernel panic, this is the new error I am getting on boot. A restart doesn't help. I have access to the server in rescue mode where I can mount the ...
0
votes
0answers
165 views

How to resolve dependency problems with differing versions between linux-server and linux-image-server

I'm new to linux system. Recently I have noticed my /boot is 100% full and i couldn't update my system. I google for solution for free my /boot space. I found the document How do I free up more space ...
0
votes
0answers
29 views

In sysctl.conf settings, what is the difference between 'all' & 'default'?

In context of sysctl.conf settings, what is the difference between (all vs. default) like net.ipv4.conf.all.accept_source_route & net.ipv4.conf.default.accept_source_route in sysctl settings ? ...
0
votes
1answer
450 views

Do modifications to sysctl.conf take effect in openVZ container?

I'm following a security guide(http://www.thefanclub.co.za/how-to/how-secure-ubuntu-1204-lts-server-part-1-basics) to strengthen my OpenVZ based VPS webserver running Ubuntu 12.04 , a part of that ...
0
votes
0answers
300 views

Ubuntu Server 12.04 random reboot? nothing in log!

Version: Ubuntu 12.04.3 LTS (precise) uname -a: Linux sysname 3.5.0-23-generic #35~precise1-Ubuntu SMP Fri Jan 25 17:13:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux We have a few Ubuntu servers ...
3
votes
2answers
663 views

Unable to remove old kernels [duplicate]

I'm trying to remove old kernel versions so I can upgrade. The method I'm using is below. sudo apt-get purge linux-image-x.y.z-server Every time I run it I get the following error: ...
0
votes
0answers
18 views

How can we enable dm crypt keeping existing data onto the disk?

Is there any way to enable dm crypt; keeping the existing data onto the disk partition?
0
votes
0answers
168 views

CPU *forced* to be almost 100% idle?

Yesterday the load on my Ubuntu Server (Ubuntu 12.04.3 LTS (GNU/Linux 3.8.0-33-generic x86_64)) went up to above 2.0 after restarting it. At the same time the CPU seems to be idle only (I could even ...
0
votes
1answer
63 views

How can i know whether the LUKS is using passphrase or key file for authentication purpose?

Lets an example, i have a Linux partition /dev/sda6 and already encryption been enabled with DM-crypt (cryptsetup) tool. As i know dm-crypt can have two way of authentication like with key file or ...
0
votes
1answer
716 views

i got error when i am trying to install L2TP .. can any help me ..solve this issuse

root@t-Aspire-5742:/# sudo ipsec verify Checking your system to see if IPsec got installed and started correctly: Version check and ipsec on-path [OK] Linux Openswan ...
1
vote
0answers
77 views

server version 3.8.0-27 is the last kernel I can boot from

[Submitted this query as bug 1237392 on LaunchPad] All kernel updates on ubuntu since kernel 3.8.0-28 result in an empty screen with no indication of startup, no response to the keyboard. I can only ...
-1
votes
1answer
1k views

Lockd Freezes once or more per day

Server has been running for over 1.5 years, with no problem. Last week started receiving errors and workstations freeze: lockd: cannot monitor statd: server rpc.statd not responding, timed out ...
2
votes
2answers
219 views

Ubuntu 12.04 server: new kernels never used

I have three servers, all running Ubuntu server 12.04 LTS. When installed, the kernel is given a relatively small partition of around 227MB. When new kernels are released, they are installed, and Grub ...
2
votes
1answer
622 views

How are kernel modules in /etc/modules determined (because one of mine fails to load)?

I was trying to setup lm-sensors (Community Guide) and when I get to step 4 (sudo service module-init-tools restart) the service fails to start. In /var/log/upstart/module-init-tools.log I get an ...
0
votes
1answer
1k views

More than 8 outputs detected?

Ever time I log into my Ubuntu Server 13.04 (3.9.9 generic kernel), I see [ 2.050256] i915 0000:00:02.0: More than 8 outputs detected beside the Login: prompt. Has anyone seen this before? ...
1
vote
2answers
802 views

Server /boot partition is filling up, Can i apt-get remove images inbetween the current and the latest?

I have a server which is running ubuntu with automatic security updates, /boot is now nearly full (93%). Below is the output of dpkg -l "linux-image*" ii linux-image-3.2.0-24-generic ...
0
votes
2answers
3k views

how to install linux-headers-3.5.0-32-generic [duplicate]

When i try to install some apps i get a message: linux-headers-generic-lts-quantal : Depend: linux-headers-3.5.0-32-generic but it is not installable uname -a Linux ubuntus 3.5.0-27-generic ...
3
votes
1answer
2k views

I cant upgrade anything

I will give a bit of a back story to how I got this issue, The first issue I has was I have a full /boot disk and could not do anything. I moved some of the unused config files to another disk and ...
1
vote
0answers
360 views

Ubuntu server 13.04 virtual kernel inside virtualbox has just 16 colors [closed]

I installed ubuntu 13.04 server with virtual-kernel option inside of virtualbox to try it out. It does seem to be working faster then the regular image. But there is one problem. The terminal has just ...
1
vote
1answer
3k views

unmet dependencies linux-server depend on linux-image-server

on my Ubuntu server 12.04.2, LVM partition, I have this problem when I run apt-get -f install : apt-get-f install Reading package lists ... done Building dependency tree Reading state information ... ...
0
votes
2answers
607 views

12.04-server update failure after full /boot, apt not working, unmet dependencies to non exiting linux-image kernel

Unattended upgrade failed after full /boot partition. Creating disk-space by deleting old kernels with the recommended command sudo apt-get purge linux-image-x.x.x-x-generic does not work and gives ...
0
votes
1answer
100 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 ...
2
votes
1answer
424 views

I can't install update because I need more space

I recently installed Ubuntu Server 12.04 LTS. After I tried to make the very first update in a couple of days, I encountered a problem which is not new, but I think in my case it is a bit ...
0
votes
1answer
849 views

kernel-panic after large file copy [closed]

I'm running ubuntu-server, 3.2.0-29-generic-pae. Not every time, but enough that it is reproducible, when I cp or mv a large file the kernel panics. I read that changing the scheduler sometimes helps ...
7
votes
2answers
2k views

Tons of general protection faults

I recently upgraded my home server from Ubuntu 10.04 to 12.04.1. It runs the linux-image-server kernel, x86_64 arch. There's nothing particularly unusual running, I think -- a deluge daemon, apache2, ...
2
votes
1answer
482 views

Why does linux-image-virtual depend on a generic kernel now?

The linux-image-virtual metapackage has historically provided a kernel that is specifically designed for use in virtual machines: Ubuntu 8.04: linux-image-2.6.24-32-virtual Ubuntu 10.04: ...
1
vote
1answer
987 views

Where to re-build kernel from in http://kernel.ubuntu.com/~kernel-ppa/mainline/?

Because I experiment with btrfs in my 12.04 server, I use recent 3.6.3-030603-generic kernel found in the kernel-ppa/mainline - Kernel Ubuntu (intended for 12.10 Quantal). I also use the LXC, which ...
2
votes
1answer
431 views

ubuntu hang out with this message :blocked for more than 120 seconds

I'm running a virtualMachine on ESXi -- Ubuntu as a webserver -- (apache2 with nginx as his proxy, php, mysql) and services keeps hanging/freezing causing the whole server to be unresponsive. It's not ...
0
votes
1answer
721 views

Server: Upgrade to Quantal - Wrong Linux Kernel? [closed]

I did an do-release-upgrade -d of a headless Ubuntu server to quantal over SSH. It has installed the linux-image-3.5 package however when I look at uname I still get 3.0: $ uname -a Linux XXX ...
0
votes
1answer
928 views

Targetcli can't load modules qla2xxx and ib_srpt

I've installed targetcli from ubuntu repository and when I start targetcli as root, it starts and display following info: Welcome to the targetcli shell: Copyright (c) 2011 by RisingTide Systems ...
3
votes
2answers
5k views

Why does my server freeze everyday at the same time?

My server freezes every day at 00:50 am. I do not know what it can be. In log files I found just such a suspect listing, but I do not know what that means. Could someone help me?? kernel: php5-cgi ...
0
votes
1answer
2k views

Kernel upgrade breaks Asus USB-N13 WiFi card Ubuntu 12.04

I compiled and installed USB-N13 wifi drivers using dkms. Everything was fine with the WiFi and I also had 1 successful kernel upgrade(3.2.0-24). Since kernel version 3.2.0-25 (and recently 3.2.0-26) ...
1
vote
3answers
3k views

How change what kernel boots Ubuntu XEN VPS?

I have a VPS running Ubuntu server 12.04. A while ago, my host installed an alternative kernel (one of Amazon's EC2 kernels) to fix a boot issue I was having. Now, 2 Ubuntu releases later, this kernel ...
0
votes
1answer
2k views

Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) after restart [duplicate]

I'm so new to Linux and suddenly found the error message appear on a running server after reboot from console. Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) here's ...
20
votes
2answers
13k views

How do I disable the blank console “screensaver” on Ubuntu Server?

How to disable blank screensaver on Ubuntu Server? There's no desktop or X, only console (command-line interface).
8
votes
4answers
10k views

Why did my upgrade to 12.04 fail with “glibc not found” or “libc6” or “requires kernel 2.6.24” error?

I upgraded my server installation form 11.04 to 11.10, then to 12.04 over ssh. All seems almost ok - but there is a small issue with glibc, which is messing up my apt. I tried sudo apt-get install -f ...
0
votes
1answer
251 views

Clean up files after a process dies

I have an application that does a lot of forking, and every fork uses quite a lot of temp disk space. Currently, all of this space is used in /tmp. For various reasons, I want to clean up these tmp ...
13
votes
3answers
4k views

Why is 12.04 removing the -server kernel flavour?

Ubuntu is removing -server flavour, as specified on release notes of 12.04: ...
1
vote
0answers
139 views

Ubuntu 11.04 Server randomly hanging [closed]

I'm running an Ubuntu 11.04 server release with kernel version 2.6.38.13-server, and for as long as I've had the system it has hung randomly. I'm starting to look into the LSI MegaRaid controller, ...
2
votes
1answer
588 views

Installation of graphical desktop changes kernel?

I've a Ubuntu Server 11.10 amd64 installation that needed a graphical desktop to execute some visual apps. While searching for the correct way to achieve this, I noticed that there are a lot of ...