0
votes
0answers
31 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
62 views

Kernel Panic has ruined my entire server, can't identify the problem

As of today all my websites have been down and I cannot connect via SSH/FTP or ping the server. The only access I have is through rescue mode. Apparently the server cannot boot normally due to 'kernel ...
0
votes
0answers
82 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
16 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
90 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
83 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
123 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
150 views

Ubuntu Server 13.10: How to downgrade kernel

Ubuntu Server 13.10 appears to be very unstable, I got random crashes of the system with no apparent reason and nothing is showing in syslog. This is screenshot from the console when the crash ...
0
votes
0answers
16 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
104 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
50 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
123 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
67 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
982 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
186 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 ...
0
votes
0answers
55 views

Ubuntu server running on vps - sometimes hangs after freeing intrd memory

I am having a weird problem. I am running a zimbra mailserver on an ubuntu server 12.04 in the cloud using a VPS system. Everything was working fine until a huge crash at the host happened. After ...
2
votes
1answer
290 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
790 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
544 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 ...
0
votes
0answers
66 views

error in installing the system Ubuntu server 12.10

I have a problem when I get to the installation the system and this error msg appears I have no idea where to type /var/log/syslog , im downloading it directly to the server no windows involved ...
3
votes
1answer
1k 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 ...
0
votes
0answers
117 views

No network modules detected in mini.iso for custom kernel 3.0.0-32-server

It would be very helpful, if somebody could help me in this. :) I am trying to update my 2.6 kernel to 3.0.0 for ubuntu-10.04 LTS. And, for update, I am using netboot_iso approach and using mini.iso ...
0
votes
0answers
197 views

No HDMI output when connecting display after boot

I need several servers running Ubuntu Server 10.04 LTS to bind framebuffer to HDMI when HDMI is not connected to a display from boot. Now there's only video output when it's connected to a display ...
1
vote
0answers
333 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
2k 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
492 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
91 views

Linux Source Problem

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
342 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
700 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
427 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
906 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
0answers
381 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 ...
1
vote
0answers
254 views

Ubuntu Server hangs when booting

It just hangs on the loading screen. When I go into safe mode from grub and then pick resume normal boot I get the message: [35.438644] init:lg.c:796: Assertion fail in log_clear_unflushed: ...
0
votes
1answer
672 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
774 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
4k 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
2k 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

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 ...
16
votes
2answers
8k 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
214 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
122 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
579 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 ...
3
votes
4answers
2k views

Is there any Ubuntu Server for i486 architecture?

I have a very weak machine (i486 with 512 MB of RAM) and want to install last Ubuntu server release on it. When I try to install ubuntu server 11.10 (32 bit) , installer says the architecture needed ...
1
vote
1answer
87 views

transfering kernel image to another system

my server system is low on disk. To install a new kernel I think i shall do the following: compile the kernel on another system. copy bzImage along with config, System.map and of course the laodable ...
1
vote
1answer
357 views

How do I set up a server with a realtime kernel?

I have installed ubuntu server 11.04 on a machine with size 4GB. As, the ubuntu server 11.04 does not support real time kernel by default, I need compile a real time kernel on ubuntu desktop 11.04 ...