- The resize2fs utility sometimes caused file system corruption during an offline resize of an ext4 file system. This happened because resize2fs did not reserve all existing metadata blocks prior to executing the resize operation. This update fixes resize2fs to reserve all existing metadata blocks as expected in this situation.
- The tune2fs man page states that the "-f" option can be used to remove a file system journal even if the journal requires replay. However, earlier versions of tune2fs did not behave as documented. This update allows tune2fs to remove a dirty journal by supplying two "-f" options on the command line.
- With previous versions of mke2fs, it was possible to specify an unsupported and unmountable file system revision on the command line by using the "-r" option. The mke2fs utility now refuses to create a file system with a revision higher than is currently supported.
- Previously, the e2image program could run against a mounted block device, resulting in an inconsistent metadata image. With this update, the e2image program now displays a warning message if the block device is mounted, and requires the "-f" option to proceed in this case.
- With previous versions of e2fsck, "zeroed-out" directory blocks were not reported or repaired. The e2fsck utility now detects and repairs this type of corruption.
- The enable_periodic_fsck option has been added to /etc/mke2fs.conf to enable or disable periodic e2fsck operations when creating new file systems with the mke2fs utility. A periodic file system check is enabled by default.