I have ubuntu 14.04 installed on a 256Gb SSD (Sandisk). The drive is partitioned to 120 GB (with OS) and the rest as a secondary Data partition. The Data partition has started having I/O problems this morning. Both partitions are Ext4 (version 1). I have run badblocks and it found 20. Is is worth formatting the dodgy partition?

Screenshots: Badblocks output

  • I have run smart --all /dev/sdb which reports test result:PASSED. – JohnnyBizzle Apr 17 '16 at 6:27
  • dmesg shows many errors such as "unable to read itable block" - it recommends running e2fsck – JohnnyBizzle Apr 17 '16 at 6:28
  • e2fsck said "UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY" – JohnnyBizzle Apr 17 '16 at 6:29

Work out the exact drive name if you are not sure from Disks. In my example the assessment says

one bad sector

  1. Under volumes the device name is /dev/sdb2
  2. The file system is ext4
  3. The drive must be unmounted

Run> fsck.ext4 -f -C0 /dev/sdb2 (if you don't want to be prompted all the time add the -y option)

Disks output screenshot

Note: After running this command I can use the drive although I seem to have lost a few files.

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