sava sava-desktop badblocks -s -v -w -o badblocks list dev sdb1 Checki

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[sava@sava-desktop ~]$ badblocks -s -v -w -o badblocks.list /dev/sdb1
Checking for bad blocks in read-write mode
From block 0 to 4030431
Testing with pattern 0xaa: done
Reading and comparing: done
Testing with pattern 0x55: done
Reading and comparing: done
Testing with pattern 0xff: done
Reading and comparing: done
Testing with pattern 0x00: done
Reading and comparing: done
Pass completed, 0 bad blocks found.