Archive for the ‘Tutorial’ Category

May

Unmountable Boot Volume

Posted by: Erikson in Tutorial

Welcome back!

A few days ago, one of my friend PC got trouble. When she pressed the power button to turn on the PC, Windows XP loading and a few seconds later, it restarted again and again. At first I thought it caused by some kind of virus which show similar symptoms like that. But at second thought, I wasn’t sure about it since the PC has updated antivirus which automatically download the new virus database online from its manufacturer.

The next suspect was hardware failure. I tried to check the BIOS for some abnormalities and I could not find it. I opened the case and tried to remove some devices (RAMs,harddrive) to check whether one of them cause this. But nothing change!

So, what to do next? I tried to restart the PC again and watched the Windows loading process. And bingo! At the end of loading, for a second I saw the bluescreen of death (bsod) showed up quickly and the PC restarted again. I repeated that step until I could see the exact error message displayed on the bsod. Finally, the error said, STOP 0×000000ED UNMOUNTABLE_BOOT_VOLUME. I googled the web and found a solution.

Requirement:

Windows XP CD-ROM

Step by step:

1.Insert the Windows XP CD-ROM into the CD-ROM drive, and then restart the computer. (make sure your BIOS use CD-ROM as 1st boot priority)
2.When the “Welcome to Setup” screen appears, press R to start the Recovery Console.
3.At the command prompt, type chkdsk /r , and then press ENTER.
4.Wait until the process finish and restart your machine.

This may takes a bit longer, but the system should boot back into Windows.

Reff: http://support.microsoft.com/kb/555302

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Oct

Fix XAMPP to Use WordPress Permalink

Posted by: Erikson in Tutorial

A few days ago, I downloaded a XAMPP package to be used on my local computer. XAMPP is an easy to install Apache distribution containing MySQL, PHP and Perl. (Actually Apache, MySQL, PHP + PEAR, Perl, mod_php, mod_perl, mod_ssl, OpenSSL, phpMyAdmin, Webalizer, Mercury Mail Transport System for Win32 and NetWare Systems v3.32, Ming, JpGraph, FileZilla FTP Server, mcrypt, eAccelerator, SQLite, and WEB-DAV + mod_auth_mysql.) XAMPP is really very easy to install and to use – just download, extract and start. Installation is simple and you can do it in no time.

After installation, next spare some time to fix about security pointing by the main page of your local XAMPP frontpage. So now, I’ve got Apache, MySQL, PHP installed and they are ran well. (This version contains:

Yesterday, I installed Wordpress on that machine and dump my blog db and wp on it. After set the configuration file and setting just like my live blog, the front page of my WordPress blog came up. I try to click one post and… voila ! I got 404 error !

I traced all configuration and it’s all as it should. I checked Apache httpd.conf and I suspected one of the modules there as the problem maker. Since I’m not Apache master and there were so many modules there, I decided googling the web for this cause. And exactly, I landed on this site.

The problem is the permalink feature on wordpress won’t work on default XAMPP installation and return 404 saying that the post is not found. By default, mod_rewrite is not enabled in XAMPP. More over, AllowOverride directive in Apache configuration file is also set to None by default, causing Apache web server to ignore any .htaccess file, which used to rewrite the permalinks to the post’s actual url.

Solution ? As MyDigitalLife described :

To use permalinks in WordPress that installed on XAMPP-based server, edit the httpd.conf that locates in \apache\conf directory. Open httpd.conf in any text editor, search for “mod_rewrite”. You should come to a line like this:

#LoadModule rewrite_module modules/mod_rewrite.so

Remove the hash sign (#) from the line. The # indicates the line is not in effect. The changed line should looks like this:

LoadModule rewrite_module modules/mod_rewrite.so

After that, search for “AllowOverride”. You will come to a line like this:

AllowOverride None

If the above line is contained within default directory (mean the directory declaration is just), then it can be left as it is. Continue searching and you would come to a second instance of AllowOverride which is contained inside your web server’s document root (default for xampp is in Windows). Change the None to All to make the line looks like this:

AllowOverride All

Restart the Apache.

And now, it works like a charm!