mtools: multiple descriptions

1 
1 3.5.7 Supplying multiple descriptions for a drive
1 -------------------------------------------------
1 
1 It is possible to supply multiple descriptions for a drive. In that
1 case, the descriptions are tried in order until one is found that fits.
1 Descriptions may fail for several reasons:
1 
1   1. because the geometry is not appropriate,
1 
1   2. because there is no disk in the drive,
1 
1   3. or because of other problems.
1 
1    Multiple definitions are useful when using physical devices which are
1 only able to support one single disk geometry.  Example:
1        drive a: file="/dev/fd0H1440" 1.44m
1        drive a: file="/dev/fd0H720" 720k
1 
1    This instructs mtools to use /dev/fd0H1440 for 1.44m (high density)
1 disks and /dev/fd0H720 for 720k (double density) disks. On Linux, this
1 feature is not really needed, as the /dev/fd0 device is able to handle
1 any geometry.
1 
1    You may also use multiple drive descriptions to access both of your
1 physical drives through one drive letter:
1 
1        drive z: file="/dev/fd0"
1        drive z: file="/dev/fd1"
1 
1    With this description, `mdir z:' accesses your first physical drive
1 if it contains a disk. If the first drive doesn't contain a disk,
1 mtools checks the second drive.
1 
1    When using multiple configuration files, drive descriptions in the
1 files parsed last override descriptions for the same drive in earlier
1 files. In order to avoid this, use the `drive+' or `+drive' keywords
1 instead of `drive'. The first adds a description to the end of the list
1 (i.e. it will be tried last), and the first adds it to the start of the
1 list.
1