lvm: add page (#5328)

pages/linux/lvm.md

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+# lvm
+
+> Manage physical volumes, volume groups, and logical volumes using the Logical Volume Manager (LVM) interactive shell.
+> More information: <https://man7.org/linux/man-pages/man8/lvm.8.html>.
+
+- Start the Logical Volume Manager interactive shell:
+
+`sudo lvm`
+
+- List the Logical Volume Manager commands:
+
+`sudo lvm help`
+
+- Initialize a drive or partition to be used as a physical volume:
+
+`sudo lvm pvcreate {{/dev/sdXY}}`
+
+- Display information about physcial volumes:
+
+`sudo lvm pvdisplay`
+
+- Create a volume group called vg1 from the physical volume on `/dev/sdXY`:
+
+`sudo lvm vgcreate {{vg1}} {{/dev/sdXY}}`
+
+- Display information about volume groups:
+
+`sudo lvm vgdisplay`
+
+- Create a logical volume with size 10G from volume group vg1:
+
+`sudo lvm lvcreate -L {{10G}} {{vg1}}`
+
+- Display information about logical volumes:
+
+`sudo lvm lvdisplay`