search for: vdb3

...VM partition, which in turn has a logical volume for root? It should be possible create a fresh virtual disk, add it to the VM as /dev/vdb (say), and then inside the CentOS 7 VM, partition the new disk into however many partitions you need (say /dev/vdb1 for /boot, /dev/vdb2 for swap, and /dev/vdb3 for /) and then use dd or use mkfs and rsync, etc. to copy the file systems, go a grub-install on /dev/vdb and then stop the VM and remove the /dev/vda disk from it and restart it. Oh, you might need to make sure the UUID or LABEL used to reference the root file system in the grub config file...

> On Mon, Feb 25, 2019 at 11:54 PM Simon Matter via CentOS > <centos at centos.org> > wrote: > >> > >> > What makes you think this has *anything* to do with systemd? Bitching >> > about systemd every time you hit a problem isn't helpful. Don't. >> >> If it's not systemd, who else does it? Can you elaborate, please? >> >

I have a Centos 7 install using EXT4 on LVM. Its running as a VM inside KVM. Issue I have run into is that fstrim does not work due to the LVM. Without fstrim snapshots have gotten huge. Is there a way convert it from LVM to non-LVM without a complete reinstall?