ufs(5) File Formats Manual ufs(5) Name ufs - ULTRIX local file system Description The ULTRIX file system is a local file system implemented under the Generic File System Interface, GFSI, which is described in UFS is a reorganization of the file system that is always supplied with ULTRIX. Aside from the difference in mounting and unmounting file systems, there are no observable differences in the file system compared to ear- lier releases. ULTRIX file system disks are completely transportable between releases of ULTRIX. See Also getmnt(2), getdirentries(2), mount(2), fstab(5), nfs(5nfs), fsck(8), mount(8) ufs(5)