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changbowen/wipe_disk_and_check_bad_sectors.sh

Last active May 27, 2019 09:02
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Wipe disk and check bad sectors
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wipe_disk_and_check_bad_sectors.sh
# check physical and logical sector size
lsblk -o Name,PHY-SEC,LOG-SEC
# wipe disk
sudo shred -v -n1 -z /dev/sdx
# check bad sectors (readonly)
sudo badblocks -vs -b 4096 -c 65536 /dev/sdx
# check bad sectors and wipe disk
# -t 0xaa limits pass to once instead of several due to -w switch
sudo badblocks -vsw -b 4096 -c 65536 -t 0xaa /dev/sdx
# unmount and power-off
udisksctl unmount -b /dev/sdx1
udisksctl power-off -b /dev/sdx
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