Is it possible to have / (root), /boot and swap partition on LVM device? - Red Hat Customer Portal

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Issue

Can we have / (root), /boot and swap partition under LVM?
Is it possible to have / (root), /boot and swap partition on LVM device?
Booting from LVM without a separate /boot but having /boot directly on LVM
Can I boot directly from LVM without having /boot on a partition? So have the whole system use LVM? This would help me simplify the workflow to use LVM snapshots and mergeback technology to rollback updates.

Environment

Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
LVM
grub2

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