In order to release space from an LVM volume to finally get a free physical partition requires the following steps:
- Resize File Sytem in the LVM volume
- Resize Physical Volume
- Create a NTFS partition
Also, root access is necessary
Resize File Sytem in the LVM volume
# lvresize --resizefs --verbose -L -30G /dev/machine_vg/root
Resize Physical Volume
# pvresize --setphysicalvolumesize [the size of your volume - 30G] /dev/sdaX
If you get an error as: /dev/sdaX: cannot resize to X extents as later ones are allocated. It means there’s another volume between the free space and the end. To see it:
# pvs -v --segments /dev/sdaX
To move the free space towards the end, grab the last column from the output for the volume to move and use it in pvmove:
# pvmove --alloc anywhere /dev/sdaX:xxxxx-xxxx
Create a NTFS partition
# fdisk
n
c
1-n [partition number, probably sdaX+1]
L
87
# mkfs.ntfs /dev/sdaX