Seems the Gluster Node that booted from 4.5 into emergency mode was due to not finding the mounts for gluster_bricks data and engine, its as if it cant see them any more. Once i removed the mounts from /etc/fstab it lets me in, I could boot up. This is node 3 of the Gluster, Arbiter. [root@ovirt-3 ~]# mount -a mount: /gluster_bricks/engine: can't find UUID=45349e37-7a97-4a64-81eb-5fac3fec6477. mount: /gluster_bricks/data: can't find UUID=c0fa1111-0db2-4e08-bb79-be677530aeaa. SDA4 is where the Data and Engine glusters are, although If I try to make a new volumegroup for the gluster, I get this serror If I try try to make a new vgroup I get the following error, it almost sounds as if the partition is corrupted or something, basically i was trying to get it a new UUID. Physical volume '/dev/sda4' is already in volume group 'gluster_vg_sda4' Unable to add physical volume '/dev/sda4' to volume group 'gluster_vg_sda4' /dev/sda4: physical volume not initialized. [root@ovirt-3 ~]# dnf -q list installed centos-release\* ovirt-release\* ovirt-engine Installed Packages centos-release-advanced-virtualization.noarch 1.0-4.el8 @@commandline centos-release-ceph-pacific.noarch 1.0-2.el8 @System centos-release-gluster10.noarch 1.0-1.el8s @System centos-release-messaging.noarch 1-3.el8 @@commandline centos-release-nfv-common.noarch 1-3.el8 @System centos-release-nfv-openvswitch.noarch 1-3.el8 @System centos-release-openstack-xena.noarch 1-1.el8 @@commandline centos-release-opstools.noarch 1-12.el8 @System centos-release-ovirt45.noarch 8.6-1.el8 @@commandline centos-release-rabbitmq-38.noarch 1-3.el8 @@commandline centos-release-storage-common.noarch 2-2.el8 @System centos-release-virt-common.noarch 1-2.el8 @System ovirt-release-host-node.x86_64 4.5.0.1-1.el8 @System [root@ovirt-3 ~]# rpm -qa | grep gluster glusterfs-server-10.1-1.el8s.x86_64 glusterfs-selinux-2.0.1-1.el8s.noarch glusterfs-client-xlators-10.1-1.el8s.x86_64 qemu-kvm-block-gluster-6.2.0-5.module_el8.6.0+1087+b42c8331.x86_64 vdsm-gluster-4.50.0.13-1.el8.x86_64 gluster-ansible-maintenance-1.0.1-12.el8.noarch centos-release-gluster10-1.0-1.el8s.noarch libvirt-daemon-driver-storage-gluster-8.0.0-2.module_el8.6.0+1087+b42c8331.x86_64 python3-gluster-10.1-1.el8s.x86_64 glusterfs-geo-replication-10.1-1.el8s.x86_64 gluster-ansible-cluster-1.0-4.el8.noarch gluster-ansible-repositories-1.0.1-5.el8.noarch libglusterfs0-10.1-1.el8s.x86_64 glusterfs-fuse-10.1-1.el8s.x86_64 glusterfs-events-10.1-1.el8s.x86_64 gluster-ansible-features-1.0.5-12.el8.noarch gluster-ansible-roles-1.0.5-26.el8.noarch glusterfs-10.1-1.el8s.x86_64 libglusterd0-10.1-1.el8s.x86_64 gluster-ansible-infra-1.0.4-20.el8.noarch glusterfs-cli-10.1-1.el8s.x86_64 [root@ovirt-3 ~]#