umfuse - User Mode FUSE implementation for umview
um_add_service umfuse.so
umview ... --preload umfuse.so
umfuse is the user-mode implementation of virtual FUSE
filesystems for umfuse. When this service module is loaded it is possible to
mount umfuse file systems. FUSE and umfuse are source level compatible, it
is possible to compile a FUSE file system implementation as a dynamic
library. The name of umfuse file system implementation libraries must begin
with umfuse.
Umfuse implemented file system are mounted and umounted by the
standard utilities mount(8) and umount(8).
Example:
$ mount -t umfuseext2 /path/to/file.img /mount/point
...
$ umount /mount/point
The mount command for umfuse file systems allows some specific options:
- debug
- give a verbose feedback of each operation on the virtual file system.
- fuseuid=uid
- specify the effective uid for the operation on the virtual file
system
- fusegid=gid
- specify the effective gid for the operation on the virtual file
system
- human
- umfuse is default mode is omnipotent, i.e. the user acts as root in
the mounted file system. When a file system gets mounted with the
human option, access control is enforced.
- umfuse modules main
program invocation options.
umfuse calls the main program of the module with the standard syntax:
umfusexxxx -o options source mountpoint
Sometimes FUSE modules have been designed to accept a different syntax. It is
possible to match the calling syntax by using the follwing options.
- nosource
- No image file should be specified.
- pre=string
- The string contains parameters that must be put before "-o
options"
- post=string
- The string contains parameters that must be added at the end
- format=string
- This is the most powerful rewriting rule. If the main needs a completely
different structure format can be used: the format string is similar to
that used in printf. %O %S %M descriptors are substituted in the call as
follows: %O=-o options, %S=source,
%M=mountpoint.
- showcall
- Show the call syntax before the actual call. Use it for debugging.
umview(1) um_add_service(1) um_del_service(1)
um_ls_service(1) um_mov_service(1)
View-OS is a project of the Computer Science Department,
University of Bologna. Project Leader: Renzo Davoli.
<http://www.sourceforge.net/projects/view-os>
Howto's and further information can be found on the project wiki
<wiki.virtualsquare.org>.