What features are supported by the ext2 filesystem?
As of this writing, the ext2 filesystem supports the following features: • Hash-indexed directories (EXT2_FEATURE_COMPAT_DIR_INDEX) (note: the ext2 filesystem only understands indexed directories in that it knows how to clear the indexed directory flag when it modifies such a directory) • Extended attribute blocks (EXT2_FEATURE_COMPAT_EXT_ATTR) • File type in directory entries (EXT2_FEATURE_INCOMPAT_FILETYPE) • Reduced block group backups (EXT2_FEATURE_INCOMPAT_META_BG) • Reduced superblock backups (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) • Files larger than 2GB in size (EXT2_FEATURE_RO_COMPAT_LARGE_FILE)