On Wed, 9 May 2012 09:30:37 -0400, Alejandro Imass wrote:
> On Wed, May 9, 2012 at 8:53 AM, Erich Dollansky
> <[email protected]> wrote:
> >> For your recommendation above, what are the advantages or differences
> >> of slicing the disk versus partitioning on a single slice?
> >>
> > it could be a misunderstanding. What is a partition? What is a slice. I
> > have to look always into the handbook. Anyway, as long the OS see different
> > units which have to be mounted independent of each other, it all does not
> > matter what is what.
> >
>
> I meant in Unix terms of course. Slice is slice (partition in other
> OS) and partition a thru h
>
> The question is if it has any advantage of using a slice to mount the
> basejail in RO as opposed to doing the same thing on a partition.
The answer is: It it not possible. :-)
You cannot mount a slice.
Given the BSD terminology: A slice _has_ to contain partitions.
You cannot format a slice, you can only format partitions. A
formatted partition carries a UFS file system. (However, it's
possible to omit the slice, and partition the whole disk instead,
this is called "dedicated mode"). A third method is formatting
the whole disk ("the 'c' device"), in that case the 'c' is omitted.
The _only_ time you can mount a slice is when it is used in its
common meaning, being a "DOS primary partition"; in this case,
a FAT or NTFS file system will be placed directly into a slice,
as those do not support any (BSD-style) partitioning.
/dev/ad0 -> the disk
/dev/ad0s1 -> 1st slice
/dev/ad0s1a -> 1st partition on 1st slice
THIS is something you can mount.
-or-
/dev/ad0a -> 1st partition on disk ("dedicated")
THIS can also be mounted.
-or-
/dev/ad0 -> the whole disk (equals /dev/ad0c)
Even THIS can be mounted.
In case I'm misunderstanding your question, could you alter the
expression?
--
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...
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