Ext2Fsd
| File:Ext2Fsd penguin mascot.jpg | |
| Original author(s) | Matt Wu |
|---|---|
| Developer(s) | Matt Wu |
| Initial release | January 26, 2002 |
| Stable release | 0.51
/ July 9, 2011 |
| Repository | |
| Written in | C[1] |
| Operating system | Microsoft Windows |
| Available in | English, Chinese (symplified) |
| Type | file system driver |
| License | GNU GPL v2 |
| Website | www |
Ext2Fsd (short for Ext2 File System Driver) is an free 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.
Ext2 File System Driver can be installed on Windows 2000, Windows XP, Windows Server 2003, Windows Vista, the 32Bit and 64Bit-versions of Windows 7 and Windows Server 2008. The support for Windows NT was dropped in version 0.30.
It optional to additionally install Ext2Mgr, another free software program, that is written in C++, to manage drive letters and such.
Features
Feature matrix
| Read | Write | Journal | dir_index | |
|---|---|---|---|---|
| ext2 | Yes | Yes | n/a | ? |
| ext3 | Yes | Yes | No | |
| ext4 | Yes | Yes | No |
Supported Ext3/4 features by 0.51:
- 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: reading, writing with no extending.
- journal: only support replay for internal journal
- flex_bg: first flexible metadata group
Unsupported Ext3/4 features:
- journal: log-based operations, external journal
- extent: size truncating & expanding, file deletion
- EA (extended attributes), ACL support
Features to be implemented in future:
- EXT3/4 features support (extents, journal)
- Documents improvement: clear and elaborate
- Performance improvement, code optimization
- Automatic check & update of new versions
- Logical Volume Manager (Linux) support, e2fsprogs porting for Windows
