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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  op‐
       erating  system. Once mounted, a udfs file system provides standard So‐
       laris 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  di‐
       rectories.


       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



       You can 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 se‐
       quentially-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.

ATTRIBUTES
       See attributes(7) for a description of the following attributes:

       tab()  box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
       TRIBUTE VALUE _ Availabilitysystem/file-system/udfs


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               14 Jun 2024                        udfs(4FS)
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