linux hard disk bad sector detection

There are many convenient graphical software for detection under Windows
You can use the default built-in tool for detection

1. View all hard drives

fdisk -l

2. Create a directory of scan results

mkdir /var/diskbad

3. Scan command

This program comes with most Linux distributions
The scan is for a specific hard drive or a partition (let’s scan a specific hard drive, for example /dev/sdd , instead of /dev/sdd1)

badblocks -v /dev/sdd >> /var/diskbad/res.txt

4. Possible error reports

badblocks: Value too large for defined data type invalid end block
If this happens, it means that the hard disk is larger, and you need to add parameter -b (change the size of the checked block, if it is still Report an error, continue to increase the value)
For example, for a 16T hard drive, the minimum value is 4096. The inspection will take a long time, please wait patiently.

badblocks -b 4096 -v /dev/sdd >> /var/diskbad/res.txt

5. You can view the results after the scan is completed

cat /var/diskbad/res.txt

Or download it and watch it