Introduction
The ext3 filesystem is a journaling extension to the standard ext2 filesystem on Linux. Journaling results in massively reduced time spent recovering a filesystem after a crash, and is therefore in high demand in environments where high availability is important, not only to improve recovery times on single machines but also to allow a crashed machine's filesystem to be recovered on another machine when we have a cluster of nodes with a shared disk. You may learn more at olstrans.sourceforge.net/release/OLS2000-ext3/OLS2000-ext3.html
Turning it on
Insert and mount the Install CD:(right-click on the desktop CD icon)
- or - (from a terminal or shell)
mount /dev/cdrom /mnt/cdrom [ENTER]
- or - OPTION-F2
/mnt/cdrom/misc/utils/convert_to_ext3 [ENTER]
... and then follow on-screen instructions.
Or you may conduct this from the command line as follows:
/sbin/tune2fs -j /dev/xx (root partition) [ENTER]
/sbin/tune2fs -j /dev/xx (additional partitions, if appropriate) [ENTER]
pico /etc/fstab [ENTER]
... and for each partition that was updated, modify 'ext2' to 'ext3'. Save and exit pico.
This HOWTO was created by Dan Burcaw, Terra Soft Solutions





