I have successfully set up a raid1 in degraded mode with this command line: mdadm --create /dev/md0 --level=1 --raid-devices=2 missing /dev/hda2 I have experienced problems when the "missing" drive was the second and the array would not initialize correctly when a real disk was added later. When "missing" is the first I did not have any problems. (Those problems were with linux 2.4 kernels, maybe this is solved with 2.6, but I did had the opportunity to check yet) -- ---> Dirk Jagdmann ----> http://cubic.org/~doj -----> http://llg.cubic.org - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html