I do create with missing sdd. Than i mount -a and get :" mount -a "mount: wrong fs type, bad option, bad superblock on /dev/md2, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so" And "EXT4-fs (md2): bad geometry: block count 3651722880 exceeds size of device (3651721600 blocks)" and the mount fails Ok is the superblock on sdf4 bad? What can i do next? thx -- 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