Alan McKinnon wrote:
Apparently, though unproven, at 18:25 on Friday 08 April 2011, Dale did opine
thusly:
I'm going to give this a stab here. I go buy a new drive. I use cfdisk
to make it ready for LVM, the 8E thingy.
Yes
I then tell LVM to make it a
Physical Volume, either in whole or in part.
Yes
I then tell LVM to make it
a Volume Group
No.
You add the PV to a Volume Group (which will be created if necessary)
Yea, I didn't type that in the way I meant it. PV is the bottom level,
then VG goes on top of that then the LV. I think I am typing that in
right. Basically, I create the PV first, then the VG then the LV. <
scratches head a bit> I think I get it but may need better wording.
and if I already had a drive using LVM I could then add
the new drive to it.
Yes.
After that, I create Logical Volumes and put file
systems on it for use sort of like the old partitions.
Yes. Once you have made the LV, you then do this:
mkfs /dev/mapper/<whatever>
instead of
mkfs /dev/sda1
The kernel sees /dev/mapper/<whatever> as just another block device (aka
something it can mkfs)
So when I get ready to make a file system, say ext3, then it would be
mkfs.ext3 /dev/mapper/<whatever>. Then it would be ready to put stuff on.
Am I sort of getting on the right track?
Spot on
Did someone mention a GUI for this? ^-^
Piffle. GUIs for LVM confuse the issue. Stay away from them like the plague.
That is likely a good idea too. I get used to the GUI then if the GUI
can't work, maybe X won't come up or something, then I have no idea
where to start. Good advice.
Thanks.
Dale
:-) :-)
