Is it safe to use a disk after a successful fsck?

Jan

I had not used my venerable ThinkPad T400 for about 2 weeks. I booted normally but was told to run fsck manually because of errors.

I'm using 12.04 and the disk in question is ext4, a Samsung Evo 840, mounted noatime,nodiratime,discard,commit=600,errors=remount-ro

I ran fsck.ext4 on my / (mounted ro) and it fixed some errors:

  • Inodes that were part of a corrupted orphan linked list
  • Block bitmap differences
  • Free inodes count wrong

fsck fixed these errors and the reports the partition to be OK.

Is it safe to use a disk after a successful fsck?

psusi

The specific errors you mention are common after a crash or power loss and result from files still being open at the time of the crash. e2fsck easily fixes them and gets the filesystem back to a sane state.

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