Package: fsck Priority: required Version: 1.42.4-e2compr-0.4.12-1 Source: e2fsprogs Architecture: __ARCH__ Maintainer: Paul A. Whittaker Section: System Destination: root Depends: libc6 (>= 2.7-1) Recommends: e2fsck, dosfsck Description: Generic filesystem integrity checker A filesystem agnostic front-end for back-end filesystem specific integrity checkers. It does nothing in and of itself. . If you intend to mount non-volatile (persistent/disk-based) filesystems read-write on a permanent basis, you need to set the sixth field of the relevant /etc/fstab entry to a non-zero value, and install an appropriate back-end support package for that filesystem type (eg. e2fsck for Ext2/3, dosfsck for VFAT). If you do not, you run a high risk of progressive data corruption should the system go down uncleanly. . Temporary synchronous read-write mounts such as those performed by the storage-detect package present a much lower risk, and you do not necessarily need to run fsck in this scenario.