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By Moshe Bar

May 24, 2000

		In This Article
			Journaling File Systems For Linux How Does A File System Work? Extent-Based Allocation How Journaling File Systems Solve The Problem Options For Linux Source Another Option

The source for this benchmark is Copyright © 1996-2000 by Nikolai Bezroukov under the Open Content License.

The jfs journaling file system is not yet implemented in any distributions as it is still in its version 0.7. Progress is, however, being made rapidly. The author of this article is participating in the jfs project and is the maintainer of the jfs FAQ.

Both journaling file systems, reiserfs and jfs, are very easy to install. In the case of jfs, you first obtain the software from the above-mentioned URL and then proceed with the following steps:

1. Unzip and untar the package jfsXXX.tar.gz

2. The software comes as a patch to the kernel (2.2.14, 2.2.15 and 2.3.99 are supported). Copy the patch (still compressed) into the kernel source code directory, usually in /usr/src. To apply the patch to the kernel, do this:

root@ maguro /usr/src #  patch -p0 

3. Recompile your kernel with the usual steps:

root@ maguro /usr/src #  make menuconfig; make dep; make clean; make bzImage; make modules

The same goes for reiserfs:

1. Obtain the software from the above URL.

2. Copy the patch (still compressed) into the kernel source code directory, usually in /usr/src. To apply the patch to the kernel, do this:

root@ maguro /usr/src #  zcat linux-2.2.11-reiserfs-3.5-patch.gz  | patch -p0 

3. Proceed to make a new reiserfs file system with:

root@ maguro /usr/src #  /linux/fs/reiserfs/utils/mkreiserfs /dev/hda2  

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