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The e2fsprogs package contains a number of utilities for creating, checking, modifying, and correcting any inconsistencies in second, third and fourth extended (ext2/ext3/ext4) file systems. E2fsprogs contains e2fsck (used to repair file system inconsistencies after an unclean shutdown), mke2fs (used to initialize a partition to contain an empty ext2 file system), debugfs (used to examine the internal structure of a file system, to manually repair a corrupted file system, or to create test cases for e2fsck), tune2fs (used to modify file system parameters), and most of the other core ext2fs file system utilities. You should install the e2fsprogs package if you need to manage the performance of an ext2, ext3, or ext4 file system.
E2fsprogs-libs contains libe2p and libext2fs, the libraries of the e2fsprogs package. These libraries are used to directly acccess ext2/3/4 filesystems from userspace.
E2fsprogs-libs contains libe2p and libext2fs, the libraries of the e2fsprogs package. These libraries are used to directly access ext2/3/4 filesystems from userspace.
E2fsprogs-libs contains libe2p and libext2fs, the libraries of the e2fsprogs package. These libraries are used to directly access ext2/3/4 file systems from user space.
E2fsprogs-static contains all static libraries built from e2fsprogs, including libext2fs, libcom_err, libe2p, and libss. These libraries are used to directly access ext2/3/4 file systems from user space, and perform other useful functions.
This package includes e2scrub script that can check ext[234] file system metadata consistency while the file system is online. It also containes a systemd service that can be enabled to do consistency check periodically. The file system consistency check can be performed online and does not require the file system to be unmounted. It uses lvm snapshots to do this which means that it can only be done on file systems that are on a lvm managed device with some free space available in respective volume group.
The e4fsprogs package contains a number of utilities for creating, checking, modifying, and correcting any inconsistencies in the fourth extended (ext4) filesystem. E4fsprogs contains e4fsck (used to repair filesystem inconsistencies after an unclean shutdown), mke4fs (used to initialize a partition to contain an empty ext4 filesystem), debugfs (used to examine the internal structure of a filesystem, to manually repair a corrupted filesystem, or to create test cases for e4fsck), tune4fs (used to modify filesystem parameters), and most of the other core ext4fs filesystem utilities. Please note that "e4fsprogs" simply contains renamed static binaries from the equivalent upstream e2fsprogs release; it is packaged this way for Red Hat Enterprise Linux 5 to ensure that the many changes included for ext4 do not destabilize the core e2fsprogs in RHEL5. You should install the e4fsprogs package if you need to manage the performance of an ext4 filesystem.