New mount Option

A new mount option is available to disable the large-file support on UFS file systems. This gives the system administrator a way to ensure that older applications that are not able to safely handle large files will continue to work.

The default mount option is largefiles. The largefiles option means that a file system mounted with this option allows creation of files larger than or equal to 2 Gbytes.

A file system mounted with this option does not have to contain files larger than 2 Gbytes.

Once a file system has been mounted with the largefiles option, if a large file has been created in that file system, it cannot be remounted with the nolargefiles option until the fsck command is run to confirm the absence of large files.