この記事はカーネル／VM Advent Calendarの15日目の記事です。 Sorry, this article is written in Japaneseさて、Minixと言えば教育用のOSとして有名だと思うのですが（教科書「オペレーティングシステム 設計と実装」とかで）、現在も開発は続いており、SC…

Take a screenshot from terminal. You can do it with two commands that one is xwininfo and the other is import command. The import command take a screen shot but if you want to take screen shot particular window, you need to know its window…

Have you seen this message when you are installing Fedora by Live CD? This message is shown when you don't choose ext4 file system as / file system. I just wanted to know why it doesn't allow to use other file system for / from source code…

The beakerlib package The beakerlib is a testing framework written in bash. It helps you to write a test case in bash. It provides several features such as Journaling, Logging, Assertion, and so on. For example, QA:Testcase ClamAV would be…

It is a time to start Advent Calendar, isn't it? In Japan, many Advent Calendar will start sine today. So, I'll do it too.The pkcon command The pkcon command is provided by PackageKit pacakage. You can install, remove, search, or etc by it…

If you are using LXDE, you can set preferred application by libfm-pref-apps command(Preferences -> Preferred Application) but unfortunately xdg-open doesn't open your preferred application. That code is here. If an URL is given, xdg-open c…

That result is here. I would say it's works fine for me except "QA:Testcase audio basic" but lxmusic is an alternative choice. Talking about doing Desktop test cases, "QA:Testcase_desktop_menus" takes long time for me. Of course it depends…

This is a simple script to Disable/Enable touchpad from terminal via xinput. #!/bin/bash val=0 if [ "$#" = "1" ]; then val=$1 fi touchpad_device="FSPPS/2 Sentelic FingerSensingPad" device_num=`xinput list | grep "$touchpad_device" | cut -d…

I wrote it and works fine for me. At first, "./autogen.sh -> ./configure -> make -> make install" hasn't worked fine yet so you need to install manually :( I'll fix it. Anyway, it requires lxpanel and libXrandr development libraries. If yo…

I am currently using LDEX on Fedora 15. so that is my quick memo about its default shortcut keys. These are defined in $HOME/.config/openbox/lxde-rc.xml "C" is Ctrl key "A" is Alt key "W" is Windows(Super) key "S" is Shift key Key bindActi…

This is a Library showing my kindle books. In Library screen, you can see two buttons one is "Cloud" and the one is "Downloaded" . According to the Kindle Cloud Reader help it automatically downloaded. When you choose a book, you can read …

As you may know Fedora 16 Alpha TC1 is published so I tested it a bit. I don't have spare machine to test it so I use KVM as test environment. I filled one bug report today. RHBZ #727573 I haven't test desktop environment so I'll do that.A…

During the upgrade process, I faced RHBZ 579114. According to that report I had to stop using tmpfs on /tmp . When I stop using tmpfs and reboot mba, preupgrade could run correctly also I needed to run 'gptsync' from rEFIt shell after preu…

There was a big earthquake in Japan about two weeks ago. I grew up in Japan so that I used to earthquake but it was the first time to got such big earthquake for me. Talking about Tokyo area where I live in we should save on electricity be…

I had a problem to access on my fedora 15 by ssh. I couldn't login from remote and even local machine. When I access to the laptop I got following error message. I goolged this error message but I coulnd't find solution. One of the reason …

I've installed Fedora 15 on my laptop by Live CD which is nightly build version. At first I wanted to upgrade from fedora 14 to 15 but it failed so I did clean install. This laptop is mainly used for everything everyday. so installing F15 …

I participated Test Day:2011-02-03 GNOME3 Alpha and reported following bugs: 1. RHBZ 674850 2. RHBZ 674877 3. RHBZ 674871 4. RHBZ 674856Even though, I found some bugs, it was not so bad. I don't have any problems to use Wifi connection, so…

I bought a Macbook Air and installed F14 on it so that I took a notes in case. Installation 1.At first, install rEFIt and edit partition on MacOS. It's nothing special. 2.Download Fedora-14-x86_64-Live-Desktop.iso. 3.Write the iso image to…

I'll do following activities this year. Do updates-testing I'm going to do it as I did last year or more. Participate test days I participated some test days during f14 development process. I'll participate it as far as I can. Testing Alph…

[OS]This article is for Kernel／VM Advent Calendar Day 31. Yeah, I know, 2010s Christmas was already finished, but never mind :)Last year I wrote a simple operating system kernel. actually, It doesn't have any useful features. though, it i…

I sometimes want to mount a disk image which has several partitions. I need to offset option with mount command when I do that. however, I'm too lazy to do that every time so I wrote a script :) This is the script. #!/usr/bin/env python fr…