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I just bought a workstation with 128 GB SDD and 3 TB SATA HDD. I installed ubuntu 12.10 in the SSD /dev/sda which works fine. Using gparted I set gpt partition table in the 3TB HDD and formatted it with ext4 file system. It works fine until I restart when ubuntu fails to identify the partition table. I am wondering what to do. Thanks.

cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda1 during installation
UUID=82b5a3d6-4aea-4131-94b5-7f5d219de098 /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda5 during installation
UUID=115a597a-9fbd-471f-89bf-3a206187f997 none            swap    sw              0       0


sudo fdisk -l

Disk /dev/sda: 128.0 GB, 128035676160 bytes
255 heads, 63 sectors/track, 15566 cylinders, total 250069680 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: 0x24da9cb5

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048   249024511   124511232   83  Linux
/dev/sda2       249026558   250068991      521217    5  Extended
/dev/sda5       249026560   250068991      521216   82  Linux swap / Solaris

WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.


Disk /dev/sdb: 3000.6 GB, 3000592982016 bytes
255 heads, 63 sectors/track, 364801 cylinders, total 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000

Disk /dev/sdb doesn't contain a valid partition table
share|improve this question
    
What is your BIOS? See comments here: askubuntu.com/questions/215565/… –  Takkat Mar 18 '13 at 8:44
    
fdisk cant read gpt-partitions. Try to use parted. Have you created an entry in /etc/fstab for the partition to auto-mount it at startup? –  prophecy201 Mar 18 '13 at 9:00
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