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Ext4

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Ext4 is the evolution of the most used Linux filesystem, Ext3. In many ways, Ext4 is a deeper improvement over Ext3 than Ext3 was over Ext2. Ext3 was mostly about adding journaling to Ext2, but Ext4 modifies important data structures of the filesystem such as the ones destined to store the file data. The result is a filesystem with an improved design, better performance, reliability, and features.

Source: Ext4 - Linux Kernel Newbies

Creating ext4 Partitions From Scratch

  • Upgrade your system:
Root terminal 48px.png
# pacman-g2 -Syu
  • Format the partition:
Root terminal 48px.png
# mkfs.ext4 /dev/sdxY

(replace sdxY with the device to format (e.g. sda1))

  • Mount the partition
  • Add an entry to /etc/fstab, using the filesystem 'type' ext4
Tip: See the mkfs.ext4 man page for more options; edit /etc/mke2fs.conf to view/configure default options.
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