Ext2Fsd (short for Ext2 File System Driver) is a free Installable File System driver written in C for the Microsoft Windows operating system family. It facilitates read and write access to the ext2, ext3 and ext4 file systems.
| Original author(s) | Matt Wu |
|---|---|
| Developer(s) | Matt Wu |
| Initial release | January 26, 2002 |
| Stable release | 0.66
/ April 13, 2016 |
| Repository | |
| Written in | C[1] |
| Operating system | Microsoft Windows |
| Available in | English, Simplified Chinese |
| Type | Installable File System |
| License | GNU GPL v2 |
| Website | www |
The driver can be installed on Windows 2000, Windows XP, Windows Server 2003, Windows Vista, Windows 7, Windows 8,[2] Windows 10, Windows Server 2008, Windows Server 2008 R2.[3] Support for Windows NT was dropped in version 0.30.[4]
The program Ext2Mgr can optionally be installed additionally to manage drive letters and such.
Features
Feature matrix
| Read | Write | Journal | dir_index | |
|---|---|---|---|---|
| ext2 |  |
|
— | — |
| ext3 | |
|
Limited |
|
| ext4 | |
|
Limited |
|
Supported Ext3/4 features by 0.65[5]
- flexible inode size: > 128 bytes, up to block size
- dir_index: htree directory index
- filetype: extra file mode in dentry
- large_file: > 4G files supported
- sparse_super: super block backup in group descriptor
- uninit_bg: fast fsck and group checksum
- extent: full support with extending and shrinking.
- journal: only support replay for internal journal
- flex_bg: first flexible metadata group
- symlink and hardlink
- Mount-as-user: specified uid/gid supported
Unsupported Ext3/4 features
- journal: log-based operations, external journal
- Extended file attributes (EA), Access control list (ACL) support
Features to be implemented in future
- Extents management improvement
- EA and ACL security checking
See also
References
- ^ http://www.ohloh.net/p/ext2fsd
- ^ "Ext2Fsd: EXT3/EXT4 Support Now Works On Windows 8". 2014-06-19.
- ^ "Ext2Fsd 0.65 was released !". 2016-04-10.
- ^ "Ext2fsd". 2009-07-27.
- ^ "Ext2Fsd 0.65 was released !". 2016-04-10.