Why might you not want to use an LVM partition for?

The main disadvantage of LVM is that it adds another layer to the storage system. While the overhead of LVM is usually small, any decrease in performance can be critical on busy systems. While the ability to resize logical volumes is very useful, the file systems installed on them must be resized separately.

Should I create boot partition Linux?

4 Answers. To answer the outright question: no, a separate partition for /boot is certainly not necessary in every case. However, even if you do not split anything else, it is generally recommended to have separate partitions for / , /boot and swap.

Can I put boot on LVM?

The /boot/ partition cannot reside on an LVM volume because the GRUB boot loader cannot read it. If unselected, the partition is created as a logical partition. If other operating systems are already on the system, unselecting this option should be considered.

What is the biggest benefit to using LVM over basic partitions?

The main advantages of LVM are increased abstraction, flexibility, and control. Logical volumes can have meaningful names like “databases” or “root-backup”. Volumes can be resized dynamically as space requirements change and migrated between physical devices within the pool on a running system or exported easily.

Is boot partition necessary for Ubuntu?

Generally speaking, unless you’re dealing with encryption, or RAID, you don’t need a separate /boot partition.

What is the Linux boot partition format?

The /boot and / (root) partition in Red Hat Enterprise Linux 6.9 can only use the ext2, ext3, and ext4 (recommended) file systems. You cannot use any other file system for this partition, such as Btrfs, XFS, or VFAT.

Why is the boot directory usually on its own partition when using lvm2?

3 Answers. When not using LVM, a separate /boot partition is primarily useful for ensuring that the files necessary for booting are close enough to the beginning of the drive, when the / partition is itself not at the beginning of the drive.

What is the difference between LVM and boot partition?

When using LVM, if your / partition is on the LVM, it used to be necessary to have a separate /boot partition. In such a configuration, the /boot partition is not be a partition of the LVM, but rather a partition on the disk before the LVM starts. This is because boot loaders could not read files from an LVM.

What is LVM in Linux?

LVM stands for Logical Volume Management. This is an alternative method of managing storage systems than the traditional partition-based one. In LVM, instead of creating partitions, you create logical volumes, and then you can just as easily mount those volumes in your filesystem as you’d a disk partition.

How to read files from LVM without a partition?

The ability to read files from an LVM was added with GRUB2, which means that all recent versions of Ubuntu (Ubuntu 9.10 Karmic Koala and later) have it. So with proper configuration you can have your entire Ubuntu system in an LVM without a separate /boot partition. See this page for details about how to configure this.

Why do we need a separate /boot partition in Linux?

In summary, a separate /boot partition is largely a matter of personal preference for systems that do not use LVM, whereas an older system installed on an LVM might need one. /boot exists for technical and historic reasons. The boot loader (grub or lilo) must be able to access its own files, the Linux kernel and the initial ramdisk.