Hi, On 01/11/2012 01:24 PM, Yuan Luo wrote: > dd if=/dev/null of=/dev/sda1 bs=1M count=1
don't you mean /dev/zero? /dev/sda1 is unlikely to start in a boot sector, I'm not sure about LVM metadata though. If this wiped it, I guess you're good(?) *If* you ever do need to wipe a boot sector, be aware that its 512 byte(!) not 1M (that's 2048 boot sectors' worth of data). Finally, manipulating the backing devices of a live DRBD is horribly bad practice as far as I'm concerned. HTH, Felix _______________________________________________ drbd-user mailing list drbd-user@lists.linbit.com http://lists.linbit.com/mailman/listinfo/drbd-user
