Re: LVM question: what's the difference between /dev/mapper/vg-lv and /dev/vg/lv

[Ivan Shmakov <ivan@gray.siamics.net>]

>>>>> yudi v <yudi.tux@gmail.com> writes:

 > I created a LV and was going to use the following command to create a
 > file system:

 > mkfs.ext4 /dev/vg/lv

 > someone suggested I use:

 > mkfs.ext4 /dev/mapper/vg-lv

 > What's the difference?

	There should be none.

	Note, however, that /dev/mapper/ may contain non-LVM specials as
	well, such as cryptsetup(8) ones.

	My guess is that /dev/VG/LV may provide some sort of backwards
	compatibility, as LVM may have been implemented before Linux's
	“device mapper.”  (IIRC, there was an LVM implementation for
	HP-UX, bearing some similarity to the one currently in Linux.)

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