I have a 1.5TB internal disk on my server. I partitioned this with fdisk, and CentOS-5.6 runs perfectly on it. But fdisk gives a very strange report. Here is the perfectly normal response to mount: ----------------------------- /dev/sdb10 on / type ext3 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) /dev/sdb2 on /boot type ext3 (rw) tmpfs on /dev/shm type tmpfs (rw) /dev/sdb5 on /home type ext3 (rw) /dev/sdb6 on /common type ext3 (rw) /dev/sdb7 on /BackupPC type ext3 (rw) /dev/sdb8 on /Photos type ext3 (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) nfsd on /proc/fs/nfsd type nfsd (rw) ----------------------------- and here is the response to "sudo fdisk /dev/sdb" ----------------------------- Disk /dev/sdb: 1500.3 GB, 1500301910016 bytes 255 heads, 63 sectors/track, 182401 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes This doesn't look like a partition table Probably you selected the wrong device. Device Boot Start End Blocks Id System /dev/sdb1 ? 188019 188051 253319 e4 SpeedStor Partition 1 does not end on cylinder boundary. /dev/sdb2 ? 62656 186401 993984023 98 Unknown Partition 2 does not end on cylinder boundary. /dev/sdb3 ? 105611 225119 959953209 7d Unknown Partition 3 does not end on cylinder boundary. /dev/sdb4 ? 347 865 4161536 0 Empty Partition 4 does not end on cylinder boundary. Partition table entries are not in disk order ----------------------------- Does fdisk not like large disks? -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland