Features

Features Ext2Fsd supports:

  1. ext2/ext3 volume reading & writing
  2. ext3 journal replay when mounting
  3. various codepage: utf8, cp936, cp950 …
  4. mountpoint automatical assignment
  5. large inode size: 128, 256, …
  6. large file size bigger than 4G
  7. CIFS sharing over network
  8. htree directory indexing
  9. ext4 extent read-only, no  size truncating and expanding support
  10. Fast fsck (uninit_bg) and group block checksum support
  11. 64k block-size, support compatible to Linux ext4 and e2fsprogs
  12. OS: 2k, xp, vista, server 2003/2008, win7

Features Ext2Fsd doesn’t support:

  1. fully ext3 journal support
  2. ext4 extent support
  3. LVM and Linux raid (md)
  4. NT4 is no longer supported.

Supported Ext3/4 features :

  1. flexible inode size: > 128 bytes, up to block size
  2. dir_index:    htree directory index
  3. filetype:     extra file mode in dentry
  4. large_file:   > 4G files supported
  5. sparse_super: super block backup in group descriptor
  6. uninit_bg:    fast fsck and group checksum
  7. extent:       reading, writing with no extending.
  8. journal:      only support replay for internal journal

Unsupported Ext3/4 features:

  1. journal: log-based operations, external journal
  2. extent: size truncating & expanding, file deletion
  3. flex_bg: first metadata group
  4. EA (extended attributes), ACL support