Adding a second hard drive in Ubuntu

Posted by on January 12, 2012 in Operating Systems, Ubuntu | 0 comments

Adding a second hard drive in Ubuntu

Adding drives in Ubuntu is fairly straightforward. When you install them, Ubuntu assigns them an sdX identifier, where X is a,b,c, etc. depending on how many drives you have installed. These instructions work with whatever number harddrive you’re installing, just change the b to whatever letter Ubuntu has assigned your new drive.



  1. Find out what your new drive is assigned. You’ll see a drive with no details. That should be your new drive.
    sudo fdisk -l
  2. Start the formatting.
    sudo fdisk /dev/sdb
    1. Press u & enter
    2. Press n & enter
    3. Press p & enter
    4. Press 1 & enter
    5. Press enter
    6. Press enter again
    7. Press w & enter
  3. Format the drive. It will take some time especially with large drives.
    sudo mkfs -t ext3 /dev/sdb1
  4. Create a mount point.
    sudo mkdir /path/to/newdrive
  5. Put your new drive in /etc/fstab so that it will mount automatically.
    /dev/sdb1 /path/to/newdrive ext3 defaults 0 2
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