LinuxQuestions.org - Notes on Linux

I leave notes here that I find particularly worth remembering myself.

Howto install selected Debian packages from other releases (apt-pinning)

Posted 11-11-2011 at 07:44 AM by bittner (Notes on Linux)

Mixing releases can be necessary when you need a more up-to-date version of a software in a system running on package management and not (yet) providing later package versions.

For example, we need the latest git on your Debian Lenny system, because you updated your Eclipse plugins, and now the git integration refuses to work with your old client. Shoot! Let's check what to do to fix this...

Things to do

Edit /etc/apt/sources.list (or create/edit a file in /etc/apt/sources.list.d/

...

bittner

LQ Newbie

Posted in Uncategorized

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Remove unwanted locales on Ubuntu / Debian

Posted 10-31-2010 at 04:18 AM by bittner (Notes on Linux)
Updated 11-01-2010 at 09:43 AM by bittner

Tags debian, locale

Sometimes you feel bothered by too many locales (pre)installed on your Debian system. If I run a server I typically want basic stuff on it, so for locales "en_US-UTF8" is enough.

Which locales are installed on my machine?
You can check which locales are generated and configured on your system using the locale command:

locale ... list the current locale configuration
locale -a ... lists all all locales that were generated on your system
locale -a -v ... list

...

bittner

LQ Newbie

Posted in Uncategorized

Views 66757 Comments 1 bittner is offline

Multipath on Debian Lenny and Intel Modular Server (MFSYS25)

Posted 08-16-2010 at 02:56 AM by bittner (Notes on Linux)
Updated 09-13-2010 at 04:33 AM by bittner (added link to FAI discussion)

Tags debian, multipath-tools

The Intel Modular Server is a complete server system designed to simplify a complex fail-safe IT environment. One characteristic is that it provides virtual disks and two storage controllers for redundancy. Systems that use those virtual disks have two physical paths to access their disk(s). (NOTE: This is not a RAID solution against disk defects, but safeguards against a breakdown of a storage controller!)

When you install and boot Linux on such a machine you will see both paths...

bittner

LQ Newbie

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Howto fix long boot delay with "Starting MTA:" (Common Issue)

Posted 06-10-2010 at 12:20 PM by bittner (Notes on Linux)

Tags debian, exim4, mta

A common issue when setting up servers in a lab is that the Mail Transfer Agent (MTA) delays the boot process waiting for a very long timeout. In the forums on the web this reads as ...

"boot process slow when 'Starting MTA' offline"
"Can I get rid of MTA?"
"Starting MTA delay"
"I see a line saying Starting MTA: It takes ages until Debian comes."

The issue is typically related to an unsuccessful reverse DNS lookup that the Mail Transfer Agent...

bittner

LQ Newbie

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Views 48484 Comments 0 bittner is offline

Howto automate interactive Debian package installations (debconf preseeding)

Posted 06-08-2010 at 07:44 AM by bittner (Notes on Linux)
Updated 06-08-2010 at 06:59 PM by bittner

Tags administration, debian, package

Fully automatic installations make sense when you need to install a vast number of machines. For Debian (but not limited to it) there is the FAI project that helps you with those kind of undertakings.

When FAI uses Debian packages (i.e. .deb files) for installation the automatic installation process gets into trouble when such a package asks for manual configuration interactively. Really, this is not specific to FAI: The Debian installer (the installation wizard guiding you through...

bittner

LQ Newbie

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