Hi, I'm trying to add a partition to a raid 1 set that I built with a "missing" partition. But mdadm won't let me add it to md0, or remove it platinum:~# cd / platinum:/# mdadm /dev/md0 -r /dev/hda1 mdadm: hot remove failed for /dev/hda1: No such device or address platinum:/# mdadm /dev/md0 -a /dev/hda1 mdadm: hot add failed for /dev/hda1: Invalid argument I don't get this. I had it all working, then I tried to update my kernel to 2.6.5, then the machine wouldn't boot without my interaction. So now when I boot to the old (working) kernel. I'm missing on partiion on /dev/md0. I'm running on debian Thanks Jay - 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