Category Archives: Linux - Page 2

WordPress Automatic Upgrade Issue with PHP4

Posted by on June 25, 2009 No comments

My hosting service provides 2 options for php versions; however, I have been running php4 because it was the default.  I wanted to test out WordPress’s Automatic Upgrade functionality but it just says it is downloading the zip file without any further progress.

I tried to look at permission and stuff but nothing was very clear.  However, I noticed somewhere in WordPress forum someone recommends that PHP5 is used.

I looked up how to use PHP5 from my hosting service and it was a simple line to enable PHP5.  I just added a line in .htaccess file.

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Ubuntu Google Trend

Posted by on May 31, 2009 No comments
I was just curious about how popular Ubuntu became compared to other major distibutions nowadays.  This graph only represents frequencies from Google search but it is still very insteresting to look at.
Ubuntu Google Search Trend

Ubuntu Google Search Trend

Ubuntu 9.04 New Feature – Computer Janitor

Posted by on April 23, 2009 No comments

As soon as I upgraded my laptop’s Ubuntu 8.10 to 9.04, I started looking for what new features there were. I found one that was interestingly named. “Computer Janitor” Hmm…

It turns out to be something that I have been waiting for a long time. It scans all unused files including packages, configuration files and it even makes recommendations. When I ran it for the first time it scanned some of the old kernels. Curiously I selected all of them and started cleaning, and viola!! Next time I booted, all my previous kernel options from grub are all gone.

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Closer to Ubuntu 9.04 Release

Posted by on April 22, 2009 No comments

GO UBUNTU!!!!

Slow guest OS installation and poor integration support in Hyper-V

Posted by on December 10, 2008 No comments

I have been trying out various OSes in Hyper-V environment but one thing that I am noticing is its slow installation process.  Even installling Windows guest OSes takes a long time.  However, once intergration service is installed on Windows guest OSes, performance improves.

However, linux in Hyper-V is out of question yet.  I tried to install 32, 64 bit Debian, Ubuntu Desktop/Server but Debian is the only distribution that I was able to be patient enough to complete the installation.  Debian base installation without GUI took a couple hours, where text frame buffer was horrible, almost unbareable, I had to wait about 10 seconds for each page to come up.  All other distributions, I waited about a couple hours too but it did not even get into the installation screen so I gave up.

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How to create deb package – part 1

Posted by on November 26, 2008 No comments

Creating an empty debian package for Debian/Ubuntu that just installs certain packages you need can be very useful when you install a fresh OS.  For instance, if you need Apache2, PHP5, MySQL5, and phpmyadmin on fresh-installed Ubuntu machine, you can install all of them at once by creating an empty package that depends on those packages.  

Step 1. You will need root privilege

sudo su

Step 2. Create a folder that will contains content of the package

mkdir myserver

Step 3. Create a DEBIAN folder that stores meta data for the package
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Enable Vino VNC Server for Login Manager (GDM) in Ubuntu

Posted by on November 19, 2008 18 comments

I have been a big fan for Remote Desktop in Windows XP/Server/Vista platform because you get a native display resolution of your client monitor and file/printer share is supported; however, for Windows 2000 or linux distributions, I do not have the option.  There is an alternate option for Windows 2000 or linux distribution which is VNC.

For Windows platform, it looks like RealVNC and UltraVNC are the most popular ones while linux has many different VNC servers.

In this example, I would like to introduce a way to enable a built-in Vino VNC server for Ubuntu distribution.

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How to enable VT in XPS 600 temporarily

Posted by on November 4, 2008 2 comments

I have a very powerful XPS 600 from Dell and I still love it very much.  However, I had only one complaint which is its VT capapility switch in BIOS.  CPU has VT capability but BIOS does not offer VT enable switch in BIOS.  I have contacted Dell a few times before but it does not seem that it will be supported.  So I started looking for a way to get around it.

The following information is what I found online.  The feature control Machine Specific Register (MSR) for VT has two bits.  The first bit is a lock bit and the second bit is a on and off bit.  If the lock bit is locked then you do not really have a choice.  However, if the lock bit is clear then you can enable the second bit from OS temporarily. 

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