Re: lvm
- From: Peter Larsen <plarsen@xxxxxxxxxxxxxxxxxxxxxxx>
- Date: Mon, 05 Mar 2012 13:28:00 -0500
On Mon, 2012-03-05 at 17:12 +1030, Tim wrote:
On Sun, 2012-03-04 at 15:13 -0500, Peter Larsen wrote:
The "partition type" is something DOS/Windows uses (to a degree) and
for backwards compatability reasons, you still see MS products use
these labels. Linux, however, does not adhere to or use the partition
types at all.
I do not think so. As I recall, set a partition up as being "swap" and
the system automatically finds it as a swap partition. Also, formatting
tools can read the partition type, and automatically choose the same
file system, when formatting it.
Anaconda may use it - but I doubt it. It's a lot safer to simply look
for the signature of the partition content to see what it is. It's how
md and lvm is detected, so why not swap and ext2/3/4?
What "format" (presuming you mean mkfs) reads the partition type? I
cannot find anything in man pages or anything that indicates it reads
anything to determine the filesystem type. Ie. how would it access the
partition table if you do "mkfs /dev/sda2"?? The table is on /dev/sda
not 2.
Of course one can create a DOS partition, for example, then reformat it
as a Linux one using an EXT3 file system, as an override, and the system
won't care what the partition type was. But that doesn't fit into Linux
not using the partition types at all.
I've not seen it use - not even during installation. It would be
interesting to see an example - so far I've never seen any indication it
uses it, not even during upgrade/installation.
--
Best Regards
Peter Larsen
Wise words of the day:
I have a map of the United States. It's actual size. I spent last summer
folding it. People ask me where I live, and I say, "E6".
-- Steven Wright
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