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What features are supported by the ext3 file system?

April 26, 2017Ext3 features file supported system

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What features are supported by the ext3 file system?

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As of this writing, the ext3 file system supports the following features: • Extended attribute blocks and large inodes (EXT3_FEATURE_COMPAT_EXT_ATTR) • Online filesystem resize reservations (EXT3_FEATURE_COMPAT_RESIZE_INODE) • Hash-indexed directories (EXT3_FEATURE_COMPAT_DIR_INDEX) • Journal file/device present (EXT3_FEATURE_COMPAT_HAS_JOURNAL) (note: this feature *must* be set for ext3 to mount the filesystem) • File type in directory entries (EXT3_FEATURE_INCOMPAT_FILETYPE) • Journal recovery required (EXT3_FEATURE_INCOMPAT_RECOVER) • Reduced block group backups (EXT3_FEATURE_INCOMPAT_META_BG) • Reduced superblock backups (EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER) • Files larger than 2GB in size (EXT3_FEATURE_RO_COMPAT_LARGE_FILE)