# badblocks -vw /dev/sda
Checking for bad blocks in read-write mode
From block 0 to 976762583
Testing with pattern 0xaa: done                                                 
Reading and comparing: done                                                 
Testing with pattern 0x55: done                                                 
Reading and comparing: 56455760
done                                                 
Testing with pattern 0xff: done                                                 
Reading and comparing: done                                                 
Testing with pattern 0x00: done                                                 
Reading and comparing: done                                                 
Pass completed, 1 bad blocks found. (1/0/0 errors)
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