Here is my current config.
blkid
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/dev/sdb1: UUID="0290c885-d660-3321-86b6-f9f80352e535" UUID_SUB="24ac4491-f35c-aaf7-431e-d83c43eaa4ca" LABEL="localhost.localdomain:boot" TYPE="linux_raid_member" PARTUUID="ac3bcb4b-79cb-4a98-b72b-e140975c4740"
/dev/sdb2: SEC_TYPE="msdos" UUID="41A8-91A2" TYPE="vfat" PARTUUID="221828db-123e-4e8c-9d3c-658ae161b9e0"
/dev/sdb3: UUID="0a17a048-97d4-d7c7-1894-49657c8159ea" UUID_SUB="718c95b7-e195-d456-eb0c-83fda57943c9" LABEL="localhost.localdomain:pv00" TYPE="linux_raid_member" PARTUUID="c7470639-6ff3-428a-856b-e59ffc2d88cb"
/dev/sda1: SEC_TYPE="msdos" UUID="41A8-91A2" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="0e16077d-8126-49e5-916e-fbb2e8c62422"
/dev/sda2: UUID="0290c885-d660-3321-86b6-f9f80352e535" UUID_SUB="1a4e6a04-30cc-72d4-b379-7e546da8edda" LABEL="localhost.localdomain:boot" TYPE="linux_raid_member" PARTUUID="9c9afe54-28b9-4469-bd2b-28a02e262635"
/dev/sda3: UUID="0a17a048-97d4-d7c7-1894-49657c8159ea" UUID_SUB="03e39d38-ecc9-c3cc-aa9b-3639a4c23591" LABEL="localhost.localdomain:pv00" TYPE="linux_raid_member" PARTUUID="70ae3d1b-5914-4150-9a1a-d7927bcbca14"
/dev/md127: UUID="a9f420ab-89a7-4318-b6d0-fccd8832a888" TYPE="xfs"
/dev/md126: UUID="AehQGf-sWyC-Fwjp-WZbf-noBr-PUYh-nFAcCY" TYPE="LVM2_member"
/dev/mapper/cl-root: UUID="777fbfba-3220-41e5-8fa5-7fa9f48b60e5" TYPE="xfs"
/dev/mapper/cl-swap: UUID="378b4833-1a55-4a34-98e7-368ee597c22c" TYPE="swap"
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#
# /etc/fstab
# Created by anaconda on Wed Aug 30 09:34:31 2017
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/cl-root / xfs defaults 0 0
UUID=a9f420ab-89a7-4318-b6d0-fccd8832a888 /boot xfs defaults 0 0
PARTUUID=0e16077d-8126-49e5-916e-fbb2e8c62422 /boot/efi vfat umask=0077,shortname=winnt 0 0
PARTUUID=221828db-123e-4e8c-9d3c-658ae161b9e0 /boot/efi2 vfat umask=0077,shortname=winnt 0 0
/dev/mapper/cl-swap swap swap defaults 0 0
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BootCurrent: 0001
Timeout: 1 seconds
BootOrder: 0001,0002
Boot0001* CentOS
Boot0002* CentOS