Comments on: How to Add New Disks Using LVM to an Existing Linux System

By: Scott G.

Scott G. — Tue, 18 Apr 2023 19:55:54 +0000

Why would you people create partitions? The WHOLE point of lvm is to replace traditional partitions with something more flexible. On a physical disk, it's just a redundancy, but in the virtual world, you are just creating a partition prison for your data that you cannot easily expand. If you pvcreate on the raw device instead of a partition, should that raw device ever change sizes (as in growing a virtual disk), it is trivial to expand it to use the space. With a partition, it's a huge problem. There is no benefit to a partition, other than for admins who still use fdisk instead of lsblk to see disk volumes. The ONLY place you need a partition is for your boot volume, as that is a limitation of traditional hardware.

By: Ravi Saive

Ravi Saive — Mon, 03 May 2021 05:48:17 +0000

In reply to dragonmouth.

@Drgaonmouth,

We have used cloud virtual storage devices for this setup, that’s why the naming is XVD.

By: dragonmouth

dragonmouth — Fri, 30 Apr 2021 21:25:35 +0000

I was taught that the hard drive naming convention in Linux is '/dev/hdx#' or '/dev/sdx#'. In the article, you are using 'xvdc' and 'xvdd'.

# fdisk /dev/xvdc
# fdisk /dev/xvdd

Have I been misinformed?

By: mykrkuoo

mykrkuoo — Fri, 17 Apr 2020 20:33:27 +0000

Can just a single partition be part of a logical device? I have a Win10 notebook. The Win10 requirements occupy most of the space on sda. Can I set up a small Linux partition on sda that connects with a physical USB disk I keep plugged into the machine to make up a logical disk for Linux? My Win install is MBR, non-UEFI, not secure boot, but would that make any difference?

By: Brett Holman

Brett Holman — Sat, 04 Jan 2020 00:03:42 +0000

It may be worth adding a final step about updating /etc/fstab so that the mount is persistent across boots.