Hello, I have created some scripts which runs in the initramfs during the boot process. Very specifically, it's an initcpio runtime hook https://man.archlinux.org/man/mkinitcpio.8#ABOUT_RUNTIME_HOOKS Question: Is this a supported environment which to create/restore snapshots?
When my script runs lvm lvconvert --merge testvg/lvmautosnap-root-1659902622-good it appears to succeed (exit code is 0, and the restore appears to work properly). However, the following warnings appear in stderr as part of the restore process: /usr/bin/dmeventd: stat failed: No such file or directory WARNING: Failed to unmonitor testvg/lvmautosnap-root-1659902622-good. /usr/bin/dmeventd: stat failed: No such file or directory WARNING: Failed to unmonitor testvg/lvmautosnap-root-1659902707-pending-2. /usr/bin/dmeventd: stat failed: No such file or directory WARNING: Failed to monitor testvg/lvmautosnap-root-1659902707-pending-2. Merging of volume testvg/lvmautosnap-root-1659902622-good started. /run/lvm/lvmpolld.socket: connect failed: No such file or directory WARNING: Failed to connect to lvmpolld. Proceeding with polling without using lvmpolld. WARNING: Check global/use_lvmpolld in lvm.conf or the lvmpolld daemon state. testvg/root: Merged: 97.92% testvg/root: Merged: 100.00% Merge of snapshot into logical volume testvg/root has finished. /usr/bin/dmeventd: stat failed: No such file or directory WARNING: Failed to unmonitor testvg/lvmautosnap-root-1659902707-pending-2. /usr/bin/dmeventd: stat failed: No such file or directory WARNING: Failed to monitor testvg/lvmautosnap-root-1659902707-pending-2. Logical volume "lvmautosnap-root-1659902622-good" successfully removed. And I get similar errors when trying to create new volumes with lvm lvcreate --permission=r --snapshot --monitor n --name my_snapshot /usr/bin/dmeventd: stat failed: No such file or directory WARNING: Failed to unmonitor testvg/lvmautosnap-root-1659902707-pending-2. Logical volume "lvmautosnap-root-1659903385-pending" created.' + lvm_handle_error 0 ' /usr/bin/dmeventd: stat failed: No such file or directory WARNING: Failed to unmonitor testvg/lvmautosnap-root-1659902707-pending-2. Logical volume "lvmautosnap-root-1659903385-pending" created I have noticed the --monitor n option exists for lvcreate, and that does seem to cut down on the error messages. However, trying to use the --driverloaded n flag always fails, with a message like "Failed to find logical volume". In summary, I'm happy to just ignore the warning messages. I just want to make sure I'm not risking the integrity of the lvm volumes by modifying them during this part of the boot process. Kindly, Anil Kulkarni _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://listman.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
