> > But, what happens if you let the kernel post install scripts do the work > or setting up the initrd things? Initially, I just rebooted from LiveCD and left Grub,kernel and dracut do their job with the defaults, but unfortunately, boot process stops at initrd (dracut) stage with the following error: [ 197.768159] localhost.localdomain dracut-initqueue[252]: Warning: Could > not boot. > [ 197.821409] localhost.localdomain systemd[1]: Received SIGRTMIN+20 from > PID 254 (plymouthd). > [ 197.822328] localhost.localdomain dracut-initqueue[252]: Warning: > /dev/centos/root does not exist > [ 197.823044] localhost.localdomain dracut-initqueue[252]: Warning: > /dev/centos/swap does not exist > [ 197.846807] localhost.localdomain systemd[1]: Starting Dracut Emergency > Shell... > [ 197.870983] localhost.localdomain systemd[1]: Received SIGRTMIN+21 from > PID 254 (plymouthd). Then, I'm dropped to dracut shell, where I boot the system by using the lvm commands as described to my first post. Once in O/S, I re-create initrd by using 'dracut -f -v -a lvm' command and reboot again the system. But still I get the same error during boot ... If you reinstall the latest kernel, does > it change anything? > This is actually the latest kernel (3.10.0-862.9.1.el7.x86_64) but I tried to boot with the second (older) kernel (vmlinuz-3.10.0-327.36.3.el7.x86_64), where I got exactly the same error during boot. Clearly, this is not a kernel issue, perhaps not even a dracut (initrd) issue, since everything was working fine, before resizing the PV/LV. I suspect that something went wrong during that step, but what? As I can successfully boot the system manually via dracut, normally everything should be ok? no? What can prevent dracut from activating the 2 LVs (centos/root and centos/swap) during initial boot phase ? Thanks, Yannis