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There are two ways to detect bad sectors in Linux: you can use the Disk Utility GUI, or if you are a command line geek like us, you can use the badblocks command to check your hard disk for bad sectors:

Kod: Zaznacz cały

sudo badblocks -v /dev/sdb1

Badblock will give us the number of bad sectors in our hard disk.

Kod: Zaznacz cały

zainul@zainul-laptop:~$ sudo badblocks -v /dev/sdb1
Checking blocks 0 to 97683200
Checking for bad blocks (read-only test): 3134528 done, 3:27 elapsed
3134560 done, 8:33 elapsed
3134561 done, 10:15 elapsed
3134562 done, 11:57 elapsed
3134563 done, 13:39 elapsed
done
Pass completed, 5 bad blocks found.

You have two options when you see bad blocks. You can either look for a new hard disk, or mark these bad blocks as unusable hard disk sectors. This involves two steps:
First we have to write the location of the bad sectors into a flat file.

Kod: Zaznacz cały

sudo badblocks /dev/sdb > /home/zainul/bad-blocks

After that, we need to feed the flat file into the FSCK command to mark these bad sectors as ‘unusable’ sectors.

Kod: Zaznacz cały

sudo fsck -l bad-blocks /dev/sdb

//bear7: Post z QUOTE i CODE jakoś tak lepiej wygląda, aniżeli pogrubienie i kursywa. Jakoś tak naturalniej