$ sudo mkswap /dev/sda6

$ sudo swapon -a

But the swapon -a threw up the following error :

swapon: cannot canonicalize /dev/disk/by-uuid/734bd422-231c-68c4-jc61-be0a6214ac18: No such file or directory
swapon: cannot stat /dev/disk/by-uuid/734bd422-231c-68c4-jc61-be0a6214ac18: No such file or directory

After some more investigation, I found out that the UUID for the swap partition on /etc/fstab was old and did not reflect the new one which got created when I recreated the swap partition. I then used this command :

$ blkid

This showed the correct value for the UUID of the swap partition, which I then updated on /etc/fstab.

Now used the same method as earlier :

$ sudo mkswap /dev/sda6

$ sudo swapon -a

And it worked like a charm, with free -mt showing up the swap space as non-zero.

PS: s1d is me

First of all, install XAMPP in your Program Files directory. There are many sources on the internet that say that installing it elsewhere causes problems in Vista. You can download XAMPP here: http://www.apachefriends.org/en/xampp-windows.html

For downloading symfony, you can do a PEAR install. But I prefer the manual installation because downloading the files can take a long time on a slow internet connection, apart from other reasons. You will need to download the tar.gz archive from the symfony download page. Extract the archive in your C: drive, for example c:\symfony.

Click the Start button/Orb and right click on computer. Go to Properties and then the advanced system settings tab. Click on the Environment Variables button. In the list of System Variables, click on the PATH variable and click Edit. Add the location of the php binary, the mysql binary and the symfony bin directory. Keep in mind that every item in the PATH variable string is seperated by a “;”. Depending on your installation, you may need to add something like this to the end of the PATH variable: “;C:\Program Files\xampp\php;C:\Program Files\xampp\mysql\bin;C:\symfony\data\bin”.

Start the Command Prompt (Orb->All Programs->Accessories). cd to the location where you want your project directory. In this example, I have just used “cd c:\”. Make a directory for your project using “mkdir myproject” command. Open this directory “cd myproject”. Type “symfony init-project myproject”. This will copy all the default symfony project files to your directory. Type “symfony init-app myapp”. This will create an application inside your symfony project. You can learn more about symfony applications in the Symfony documentation later. You can close the Command Prompt now.

Open the C:\Windows\System32\drivers\etc folder in explorer. Right click on hosts, and uncheck Read-only if its checked. Click OK. Start Notepad with Administrator priviledges (Orb->All Programs->Accessories-> Right click Notepad and click Run as Administrator). Click File and Open and open this file: “C:\Windows\System32\drivers\etc\hosts”. You will need to change the file type to all files to see this file. Add this line under “127.0.0.1 localhost”: “127.0.0.1 myproject”. Save this file. Click File and open and open this file “C:\Program Files\xampp\apache\conf\extra\httpd-vhosts.conf”. Once again, you will need to change the file type to all files. Add the following to the end of the file.
<VirtualHost *:80>
ServerName myproject
DocumentRoot “C:\myproject\web”
DirectoryIndex index.php
Alias /sf C:\symfony\data\web\sf
<Directory “C:\symfony\data\web\sf”>
AllowOverride All
Allow from All
</Directory>
<Directory “C:\myproject\web”>
AllowOverride All
Allow from All
</Directory>
</VirtualHost>

Restart Apache using the XAMPP control panel. Right click on the symfony folder in explorer and go to Properties. Go to the security tab. Choose your username and grant full control. Click Apply.

If all has gone well, your symfony installation is now ready to use. You can open “http://myproject” in your browser to test it out. To learn symfony, you can try the Askeet tutorial in the symfony documentation and you can read the official documentation or the “Symfony book” here: http://www.symfony-project.org/doc

No, like most other social applications, Twitter may seem completely pointless unless you start using it properly. You can let all your friends know what you are up to from their website, IM, or other services that use their API.
I can chat from my phone, so I can easily twitter on the move. They also have a mobile website. And for users in UK and USA, you can also use SMS! (I know, they have an international number too, but you wouldn’t send an international SMS to update your status would you?)

You can connect to other friends by following their updates, meaning all their updates will appear on your page, and similarly your friends can follow you. If you are concerned about privacy, you can control who follows your tweets by making your updates private. And finally, you can use Twitter badges in social networks and your sites or blogs to display your status!

I know, it may still sound a bit silly (just a status message?!).. But its the fastest and easiest way to let everyone know what you are doing. Your twitter friends(who can also receive email and SMS notifications if they want to, by the way), your website visitors, and your friends in your social network.

If only they had a local SMS facility in India, it would help in making SMS communities and make communicating even more easier.