ubuntu@ubuntu:~$ sudo fsck /dev/sda2
fsck from util-linux 2.27.1
e2fsck 1.42.13 (17-May-2015)
/dev/sda2 contains a file system with errors, check forced.
Pass 1: Checking inodes, blocks, and sizes
Inodes that were part of a corrupted orphan linked list found.  Fix<y>? yes
Inode 1060186 was part of the orphaned inode list.  FIXED.
Inode 1060191 was part of the orphaned inode list.  FIXED.
Inode 1060193 was part of the orphaned inode list.  FIXED.
Inode 1060200 was part of the orphaned inode list.  FIXED.
Deleted inode 1060223 has zero dtime.  Fix<y>? yes
Pass 2: Checking directory structure
Error reading block 4202608 (Attempt to read block from filesystem resulted in short read) while reading directory block.  Ignore error<y>? yes
Force rewrite<y>? yes
Directory inode 1048767, block #0, offset 0: directory corrupted
Salvage<y>? yes
Missing '.' in directory inode 1048767.
Fix<y>? yes
Setting filetype for entry '.' in ??? (1048767) to 2.
Missing '..' in directory inode 1048767.
Fix<y>? yes
Setting filetype for entry '..' in ??? (1048767) to 2.

Pass 3: Checking directory connectivity
'..' in /home/faisal/.cache/logrotate (1048767) is <The NULL inode> (0), should be /home/faisal/.cache (1048583).
Fix<y>? yes
Pass 4: Checking reference counts
Inode 2 ref count is 23, should be 24.  Fix<y>? yes
Inode 1048583 ref count is 19, should be 18.  Fix<y>? yes
Unattached inode 1060211
Connect to /lost+found<y>? yes
Inode 1060211 ref count is 2, should be 1.  Fix<y>? yes
Pass 5: Checking group summary information
Block bitmap differences:  -(79757831--79757834) -(79757837--79757840) -(85494803--85494806) -(85524993--85525000)
Fix<y>? yes
Free blocks count wrong for group #2434 (21451, counted=21459).
Fix<y>? yes
Free blocks count wrong for group #2609 (6147, counted=6151).
Fix<y>? yes
Free blocks count wrong for group #2610 (29311, counted=29319).
Fix<y>? yes
Free blocks count wrong (105800045, counted=105799995).
Fix<y>? yes
Inode bitmap differences:  -1060186 -1060191 -1060193 -1060200 -1060223
Fix<y>? yes
Free inodes count wrong for group #129 (4724, counted=4729).
Fix<y>? yes
Free inodes count wrong (28871737, counted=28871728).
Fix<y>? yes

/dev/sda2: ***** FILE SYSTEM WAS MODIFIED *****
/dev/sda2: 578512/29450240 files (0.4% non-contiguous), 11994565/117794560 blocks