On 09/07/2012 11:16, Polytropon wrote:
If you're talking about an MS-DOS disk, then yes, it contains
a DOS partition which is formatted. In FreeBSD, we would call
it a slice (slice == "DOS primary partition"). In this case,
there is no (sub)partitioning, the _slice_ carries the MS-DOS
file system here. You know that MS-DOS does not have support
for partitioning.
Floppy disks aren't partitioned/sliced - they use 'dangerously
dedicated' mode, containing nothing except the filesystem. The way you'd
mount it would be:
mount /dev/fd0 /mnt/point
You can do the same with a normal USB or other disk using:
newfs /dev/da0
mount /dev/da0 /mnt/point
The reason it's called 'dangerously dedicated' I think is that other
systems - or even the same system months/years later if you forget and
run the wrong tools - won't know there's a filesystem there and it's
easy to think the disk's empty. If you're on an old system and run
'gpart show da0' and don't see a partition table it's quite easy to
forget to check if da0 itself contains a filesystem.
When using GPT what were called slices are now partitions, and instead
of 'ada0s1a' (disk 0, slice 1, partition a) you just have 'ada0p1'. A
partition table supports up to 4096 entries (gpart creates one
supporting 128 by default) so there's no need for the freebsd container
any more - you just create freebsd-boot, freebsd-ufs, freebsd-zfs,
freebsd-swap entries e.g. 'gpart add -t freebsd-ufs -s 64g da0'.
--
Bruce Cran
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