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MultiFileSystem - share multiple file systems under a single
Nicola Salmoria <MC6489@mclink.it>
Thanks to the versatility of AmigaDOS, we are able to use many
different file systems on our disks. The most popular is of course
CrossDOS (tm), but many other file systems can be found in the PD.
Adding a new file system to the Amiga is simplicity itself: just
copy a file in L:, provide a suitable mountlist, and there you go.
This works flawlessy if every physical unit is accessed by a
single file system, but if multiple file systems share the same
device, some problems arise:
- You have to call the same unit with different names (e.g. DF0:
and PC0:) depending of the kind of disk inserted.
- When you insert a PC disk, the Workbench shows a DF0:???? icon,
and vice versa; this can be very annoying especially for owners
of more than one drive.
- When a file system is busy (for example during a DiskCopy), the
other file systems can still access the disk; this goes against
the concept of "inhibiting" a device.
MultiFileSystem solves all of these problems. It isn't a file
system in the usual way: it is an interface to other file systems.
When you mount it, you tell it which file systems it should use;
afterwards, when a disk is inserted, MultiFileSystem will
recognize it and pass the commands to the appropriate file system.
This means that with a single device name, for example DF0:, you
can access any conceivable file system!
You are not limited to floppy drives, of course: I successfully
installed MultiFileSystem over a 128Mb magnetooptical drive.
Fixed all reported bugs. It seems that version 1.0 didn't work
with the Mount command supplied with Workbench 2.1. This
incompatibility has been removed so version 1.1 should work on
all systems starting from Workbench 2.1 upwards.
New DiskCopy and Format patches, which make operations easier:
DiskCopy automatically picks the correct file system on the
destination disk; Format shows a requester asking the user to
choose which file system to use.
OS release 2.1 or newer
Any Aminet site, for example
Freeware, freely distributable as long as the archive remains
intact and only a nominal fee is charged for its distribution.