The filesystem used in the vast majority of Linux (and to a lesser extent on other Unix) distributions is the ext3 filesystem, which stands for extended filesystem. Slashdot recently pointed to an article on IBM DeveloperWorks discussing the new ext4 filesystem currently in development, and some of its new features. So what is a filesystem really?

You can convert your existing Ext3 filesystem to Ext4 with an easy procedure.Things to remember
* Unmount the filesystem before convert
* Filesystem must be non-root
This way you can improve the performance, storage limits and features of your existing filesystem without reformatting and/or reinstalling your OS and softwares.

I did mention that the new filesystem - ext4 is stable, fast and backward compatible with ext2 and ext3. Today, we will look at how you can upgrade your existing ext3 filesystem to ext4 without reformating your hard disk.

Over the weekend, I converted my laptop to use the ext4 filesystem. So far so good! So far I’ve found one bug as a result of my using ext4 in production (if delayed allocation is enabled, i_blocks doesn’t get updated until the block allocation takes place, so files can appear to have 0k blocksize right after they are created, which is confusing/unfortunate), but nothing super serious yet.

This article is meant to serve as a guide for migrating a live system from ext3 to an ext4 filesystem, including migration of files to use extents, a major feature in ext4.

It will take about two or three years for the ext4 filesystem, that has been adopted as the default by some community GNU/Linux distributions, to be routinely deployed on production systems, according to senior Linux kernel hacker Theodore Ts'o.

Most often, when someone talks about a filesystem or file system, they're referring to disk filesystems such as NTFS, FAT, ext2, ext3, ext4, ISO 9660 and many others but can also refer to network file systems such as CIFS and NFS. But, is there a perfect filesystem?

One of the more controversial aspects of the Ubuntu 9.04 Jaunty Jackalope release is the use of the ext4 filesystem. Users have apparently lost important data already while testing Ubuntu on their desktop. This article provides some basic information about ext4 and then provides some test results on a Ubuntu 9.04 server.

Less than 13 days and Kubnutu 9.10 will be released. It is based on Ubuntu 9.10 packages which means it will get: Linux kernel 2.6.31, ext4 filesystem by default,GRUB 2 boot loader and a lot more. In this post I will try to list five things that make Kubuntu 9.10 special in compare to other KDE distribution.