I have two seagate hard drives. Each are 500 gbs. I used gparted live to make two partitions on the one hard driver, each 250 gb. I set one to NTFS format and the other to EXT4. I installed Windows 7 on NTFS. Installation went smooth and my storage hard drive still shoed 500 gb's available. Then I installed Ubuntu Desktop 12.04 LTS in the EXT4 partition. I selected the first option where it said that Ubuntu detected another operating system and so will install in the other partition. Everything seemed to go fine. When I booted, grub displayed my two primary boots (the ubuntu and the windows 7 installation in addition to memtest). But something stranged happened. When I booted in both Windows 7 and Ubuntu 12.04, and I looked at my storage drive, it now only showed 250 gb available! What happened to cause my storage drive to be split in half? I didn't touch it at all during the partitioning and installation process. It should remain at 500 gbs.
This is the output of sudo fdisk -l:
Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x1b371b36 Device Boot Start End Blocks Id System /dev/sda1 * 2048 487589887 243793920 7 HPFS/NTFS/exFAT /dev/sda2 487589888 976773119 244591616 83 Linux Disk /dev/sdb: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x1b821b81 Device Boot Start End Blocks Id System /dev/sdb1 * 63 488376031 244187984+ 7 HPFS/NTFS/exFAT /dev/sdb2 488376318 976771071 244197377 5 Extended /dev/sdb5 488376320 970485759 241054720 83 Linux /dev/sdb6 970487808 976771071 3141632 82 Linux swap / Solaris
UPDATE: How come for the sdb device it shows 4 partitions, HPFS, Extended, Linux, Linux Swap? That drive should be completely empty. I never partitioned it. With gparted, the disc was completely empty.