Journaling Block Device (JBD2) An implementation of the JBD2 journalling layer as used in ext3, ext4, and OCFS2 Install via npm $ npm install --save jbd2 Used by jhermsmeier / node-ext4, an implementation of the ext4 file system in JavaScript Usage var Journal = require( 'jbd2' ) References ext4.wiki.kernel.org / Ext4_Disk_Layout kerneltrap.org/node/6741 kernelnewbies.org/Ext4