Badblocks: Difference between revisions
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'''This is a destructive test.''' | '''This is a destructive test.''' | ||
ETA is approximately 1 day per 4 terabytes. | |||
<pre> | <pre> | ||
badblocks -wsv -b 4096 /dev/sdg | badblocks -wsv -b 4096 -t 0x55 -o badblocks.txt /dev/sdg | ||
</pre> | </pre> | ||
* <code>-w</code> do a destructive write test | * <code>-w</code> do a destructive write test | ||
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* <code>-b ''num''</code> block size. Use 4096 typically. | * <code>-b ''num''</code> block size. Use 4096 typically. | ||
* <code>-p ''num''</code> do ''num'' iterations. Typically 1 is sufficient. | * <code>-p ''num''</code> do ''num'' iterations. Typically 1 is sufficient. | ||
* <code>-t ''test_pattern''</code> Test pattern. | * <code>-t ''test_pattern''</code> Test pattern. Can be random. E.g. 0x55 | ||
* <code>-o ''file''</code> output badblocks to a file | |||
To save the list of bad blocks, you need to run <code>e2fsck</code> or <code>mkfs.ext4</code>: | To save the list of bad blocks, you need to run <code>e2fsck</code> or <code>mkfs.ext4</code>: | ||
<pre> | |||
sudo e2fsck -fcck /dev/device | |||
</pre> | |||
* <code>-f</code> force check | |||
* <code>-cc</code> non-destructive write test | |||
* <code>-k</code> add bad blocks to bad blocks list | |||
<pre> | |||
mkfs.ext4 -cc /dev/device | |||
</pre> | |||
==Resources== | ==Resources== | ||
* [[Archwiki: Badblocks]] | * [[Archwiki: Badblocks]] | ||