title: wrong fs type, bad options, bad superblock
body: <p>I am getting this error:</p>
  
  <pre><code>mount: /mnt/dev/sda3: wrong fs type, bad option, bad superblock on /dev/sda2, missing codepage or helper program, or other error.
  </code></pre>
  
  <p>I tried this:</p>
  
  <pre><code>sudo apt-get install nfs-common
  </code></pre>
  
  <p>And this:</p>
  
  <pre><code>sudo apt-get install cifs-utils
  </code></pre>
  
  <p>But still no good.</p>
  
  <p>I typed</p>
  
  <pre><code>sudo fdisk -l
  </code></pre>
  
  <p>and got this output</p>
  
  <pre><code>Device     Boot     Start       End   Sectors   Size Id Type
  /dev/sda1  *         2048    718847    716800   350M  7 HPFS/NTFS/exFAT
  /dev/sda2          718848 204802047 204083200  97.3G  7 HPFS/NTFS/exFAT
  /dev/sda3       204802110 512002047 307199938 146.5G  f W95 Ext'd (LBA)
  /dev/sda4       512002048 976771071 464769024 221.6G  7 HPFS/NTFS/exFAT
  /dev/sda5       204802112 339970047 135167936  64.5G  7 HPFS/NTFS/exFAT
  /dev/sda6       339972096 355971071  15998976   7.6G 82 Linux swap / Solaris
  /dev/sda7       355973120 512002047 156028928  74.4G 83 Linux
  
  Partition 3 does not start on physical sector boundary.
  Partition table entries are not in disk order.
  </code></pre>
  
  <p>I have to access /dev/sda4 , sda5. I can access it through File Manager but not through Terminal.</p>
  
  <p>I'm Using Ubuntu 18.04 LTS</p>