RUMP_CD9660(8)          NetBSD System Manager's Manual          RUMP_CD9660(8)

NAME
     rump_cd9660 -- mount the cd9660 file system using a userspace server

SYNOPSIS
     file-system PUFFS
     pseudo-device putter

     rump_cd9660 [options] special node

DESCRIPTION
     The rump_cd9660 utility can be used to mount cd9660 file systems.  It
     uses rump(3) and p2k(3) to facilitate running the file system as a server
     in userspace.  As opposed to mount_cd9660(8), rump_cd9660 does not use
     file system code within the kernel and therefore does not require kernel
     support except puffs(4).  Apart from a minor speed penalty (starting from
     10% and depending on the workload and file system in question), there is
     no difference to using in-kernel code.

     In case mounting a file system image from a regular file, rump_cd9660
     does not require the use of vnconfig(8) unlike kernel file systems.
     Instead, the image path can be directly passed as the special file path.
     The exception is if the image contains a disklabel.  In this case vncon-
     fig is required to resolve the start offset for the correct partition
     within the image.

     It is recommended that untrusted file system images be mounted with
     rump_cd9660 instead of mount_cd9660(8).  Corrupt file system images com-
     monly cause the file system to crash the entire kernel, but with
     rump_cd9660 only the userspace server process will dump core.

     To use rump_cd9660 via mount(8), the flags -o rump and -t cd9660 should
     be given.  Similarly, rump_cd9660 is run instead of mount_cd9660(8) if
     ``rump'' is added to the options field of fstab(5).

     Please see mount_cd9660(8) for a full description of the available com-
     mand line options.

SEE ALSO
     p2k(3), puffs(3), rump(3), mount_cd9660(8)

HISTORY
     The rump_cd9660 utility first appeared in NetBSD 5.0.  It is currently
     considered experimental.

NetBSD 5.1                     February 15, 2009                    NetBSD 5.1

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