Tag Archives: linux

The Many Animals of Linux – AKA WTF is a ‘Trusty Tahr’? – Part 2

In this series of posts I scour Wikipedia looking for a bunch of random facts about animals in Ubuntu release names. I sometimes make slightly snarky comments about them that I find mildly amusing. This post starts from Ubuntu 7.04. Take a look at part one here. Part 2 took eight years, so you better enjoy it.

Ubuntu 7.04 – Feisty Fawn

A very non feisty looking fawn

A very non feisty looking fawn. (Source: Veledan on Wikipedia)

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The Many Animals of Linux – AKA WTF is a ‘Trusty Tahr’? – Part 1

Have you ever heard about a new Ubuntu release and wondered what a tahr or pangolin is? I know I have. Every Ubuntu release is given a codename that consists of an adjective and an animal name. A few other distros have have also had releases that reference animals.

I’ve scoured the Internet (by that I mean Wikipedia) to find information about these animals. I’ve picked out just the most interesting bits and paired them with pretty pictures. Let’s get started.

Ubuntu 4.10 – Warty Warthog


Note: does not appear to have warts

Warthogs are a member of the pig family and live in Africa. You may know them from The Lion King.

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Manually Starting or Stopping a RAID check in Linux

If you want to manually start or stop a RAID consistency check in Linux it’s quite simple.

Starting a check on md0:

root@desktop:~# echo check > /sys/block/md0/md/sync_action

Stopping a check on md0:

root@desktop:~# echo idle > /sys/block/md0/md/sync_action

If you’re using Debian (or a Debian based distro, e.g. Ubuntu), there is a script to do this.

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Getting progress from dd

Just a real quick post on how to get progress updates from dd.

The dd command normally doesn’t display any progress updates when you run it.

In order to get dd to print out its current progress, send the USR1 signal to the dd process.

Step 1: Start dd.

username@desktop:~$ dd if=/dev/random of=outfile 

Step 2: Get the PID (Process ID) of dd.

username@desktop:~$ ps a PID TTY STAT TIME COMMAND -- snip -- 9158 pts/30 S+ 0:00 dd if=/dev/random of=outfile 9187 pts/31 R+ 0:00 ps a

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