I have a confusion regarding the fsck
correction. I have corrupted an ACL
block of an inode
. Trying to understand how fsck
corrects. What value does it compares and performs the correction.
Does fsck
corrects the inconsistency of the file system by comparing the on-disk
structures with the Journal
or with the buffer. Or does it checks the superblocks
with the other structures.
fsck - correcting the inconsistency
92 Views Asked by Angus At
1
There are 1 best solutions below
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"Correction" does not necessarily mean what you think it means.
Typically, there are not multiple copies of data or metadata on the disk, and even if there were, it might not be possible to determine which one is the correct one.
fsck
merely changes the metadata so that the file system is consistent again. But the result might be an outdated copy, or some garbage that looked like correct data; in extreme cases, the only way to make the corrupted data consistent might be to delete it altogether.