Which sequence correctly describes creating a new logical volume on new disks using LVM, including preparing disks, PVs, VG, LV, and filesystem, then mounting?

• A. have physical disks like xvdf or xvdg; gdisk those disks; commands are n for new, enter defaults, 8e00 for Linux LVM; then pvcreate /dev/xvdf1 /dev/xvdf2; vgcreate battlestar /dev/xvdf1 /dev/xvdg1; lvcreate -n galactica -L 20G battlestar; mkfs -t xfs /dev/battlestar/galactica; mkdir /mnt/mydir; mount /dev/battlestar/galactica /mnt/mydir
• B. pvcreate /dev/xvdf1 /dev/xvdg1; vgcreate battlestar /dev/xvdf1 /dev/xvdg1; lvcreate -n galactica -L 20G battlestar; mkfs -t xfs /dev/battlestar/galactica; mount /dev/battlestar/galactica /mnt/mydir
• C. gdisk those disks; pvcreate /dev/xvdf1; vgcreate battlestar /dev/xvdf1; lvcreate -n galactica -L 20G battlestar; mkfs -t xfs /dev/battlestar/galactica; mkdir /mnt/mydir; mount /dev/battlestar/galactica /mnt/mydir
• D. fdisk; pvcreate; vgextend

Answer: (B)

Creating storage with LVM follows a straightforward sequence: turn the disks into physical volumes, group those PVs into a volume group, carve out a logical volume from that VG, format the LV with a filesystem, and then mount it.

In this scenario two partitions on the new disks are prepared as LVM physical volumes. Initializing them with pvcreate /dev/xvdf1 /dev/xvdg1 makes them usable by LVM. Then both physical volumes are combined into a single volume group named battlestar via vgcreate battlestar /dev/xvdf1 /dev/xvdg1, giving a central pool of storage from which you can allocate logical volumes. A logical volume galactica is created in that VG with lvcreate -n galactica -L 20G battlestar, reserving 20 gigabytes for this LV. The next step formats the new LV with a filesystem, here mkfs -t xfs /dev/battlestar/galactica, so it can store data in a usable filesystem. Finally, mount it with mount /dev/battlestar/galactica /mnt/mydir, after ensuring the mount point exists (typically you’d run mkdir /mnt/mydir first). This sequence correctly reflects the standard workflow: PVs → VG → LV → filesystem → mount.

Other options skip or misorder these steps, or rely on only one disk’s PV, or omit necessary steps like creating the mount point, making them inappropriate for correctly provisioning a new LVM-based filesystem.