EXT3其实只是在EXT2的基础上增加了一个日志功能，而EXT4的变化可以说是翻天覆地的，比如向 下兼容EXT3、最大1EB文件系统和16TB文件、无限数量子目录 ...

为了避免相关“时间炸弹”，官方建议 ext2 用户升级到 ext4 驱动程序，ext4 文件系统驱动程序与 ext2 完全兼容。

If you've been running Linux for a while, you're probably using the now slightly-outdated EXT2 or EXT3 file system. Technology blog Ghacks has a guide to converting those formats to the newer ...

Ext4 was ultimately chosen over XFS because it would allow Google to do a live in-place upgrade of its existing Ext2 filesystems.

The default file system used in Ubuntu Linux--EXT4--is widely accepted as delivering superior performance to the NTFS file system used in Windows--today we explore why.