I have a KVM host running a linux 2.2 guest. The virtual disk for the guest is an LVM logical volume. This is seen by the guest as a real disk, so it's partitioned, has a boot sector, etc.
Now my question is: if I take a snapshot of that logical volume while the guest is running, can I be sure that it is consistent? I've read that LVM should take care of freezing the filesystem contained on the logical volume prior to taking the snapshot, but how does it work in the case of a full disk image as I have here? Will the guest kernel somehow be involved in freezing the filesystems?
Thanks for any answers and sorry for the confusion.