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udfs(4fs)

udfs(4FS)                        File Systems                        udfs(4FS)



NAME
       udfs - universal disk format file system

DESCRIPTION
       The  udfs  file system is a file system type that allows user access to
       files on Universal Disk Format (UDF)  disks  from  within  the  Solaris
       operating  system.  Once  mounted, a udfs file system provides standard
       Solaris file system operations and semantics. That is, users  can  read
       files,  write  files, and list files in a directory on a UDF device and
       applications can use standard UNIX system  calls  on  these  files  and
       directories.


       Because  udfs is a platform-independent file system, the same media can
       be written to and read from by any operating system or vendor.

   Mounting File Systems
       udfs file systems are mounted using:

         mount -F udfs -o rw/ro device-special



       Use:

         mount /udfs



       if the /udfs and device special file /dev/dsk/c0t6d0s0  are  valid  and
       the following line (or similar line) appears in your /etc/vfstab file:

         /dev/dsk/c0t6d0s0 - /udfs udfs - no ro



       The  udfs  file  system  provides  read-only  support for ROM, RAM, and
       sequentially-recordable media and read-write support on RAM media.


       The udfs file system also supports regular files, directories, and sym‐
       bolic  links,  as  well as device nodes such as block, character, FIFO,
       and Socket.

SEE ALSO
       vfstab(5), mount(8), mount_udfs(8)

NOTES
       Characters not allowed in Solaris file names such as '\0' and  '/'  and
       invalid file names such as "." and ".." will be translated according to
       the following rule:

           o      Replace the invalid character with an '_', then  append  the
                  file  name with '#' followed by a 4 digit hex representation
                  of the 16-bit CRC of the original FileIdentifier. For  exam‐
                  ple, the file name ".." will become "__#4C05".




Oracle Solaris 11.4               11 Dec 2020                        udfs(4FS)
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