I am hoping that someone on this mailing list is expert enough to answer my question: Is there any reason that sector 0 on a Logical Volume should not be all zeros? I guess I am really asking if any filesystem uses sector 0 on a Logical Volume. My problem occurred when I effectively dd'ed a real disk partition on which grub is installed to a Logical Volume. When grub in installed into a partition, it not only installs it's boot code but also makes sector 0 on that partition have a fake "msdos" partition table and the kernel (and other software) does not like that at all!! My solution was to use dd to zero sector 0 and then everything worked ... could mount the Logical Volume, etc. Gene _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/