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Oracle Linux: "Dirty bit is set. Fs was not properly unmounted and some data may be corrupt." Messages Appear when doing FSCK (Doc ID 2679511.1)

Last updated on AUGUST 26, 2021

Applies to:

Linux OS - Version Oracle Linux 7.7 and later
Linux x86-64

Goal

What is the meaning of the "Dirty bit is set. Fs was not properly unmounted and some data may be corrupt." messages being reported when doing FSCK (file system consistency check) on an image backup using dd command?

Sample scenario:

Output:
----------------------------
fsck from util-linux 2.23.2
fsck.fat 3.0.20 (12 Jun 2013)
0x41: Dirty bit is set. Fs was not properly unmounted and some data may be corrupt.
Automatically removing dirty bit.
Performing changes.
/test/efi.img: 3 files, 3/261629 clusters

 

Solution

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