Linux box with Adaptec 2940, two HD SCSI 4,3 GB, kernel 2.0.35 and raidtools 0.90. First HD and second HD have 3 partitions. sda3 and sdb3 are mounted in a RAID 1. I want to change the second HD and use other SCSI HD 4,3 GB. How can do it?? I think that I have mount the new disk, create the partitions, copy the actual mirror partition to the new (dd if=/dev/sda3 of=/dev/sdc3 or dd if=/dev/md0 of=/dev/sdc3), shutdown and disconnect /dev/sdb. But now the superblock info in /dev/sdb3 (this is the old /dev/sdc3) is incorrect. How I can solve it? In raidtools 0.42 I ran ckraid --only-superblock. But in raidtools 0.90 I donīt have ckraid. Thanks in advance. Javier Gonzalez Centro de Calculo, ext. 2333 Universidad Pontificia Comillas