66 lines
1.4 KiB
Bash
66 lines
1.4 KiB
Bash
#!/bin/bash
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#info @ EOF
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#Скриптец проходится по ошибкам на диске и затирает их ddшкой.
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#ACHTUNG! данные на диске могут быть утеряны!
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#Написано для диска sdba с одним разделом sdb1 на весь диск
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DISK="/dev/sdb"
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block=$(smartctl --all $DISK | grep 'Short offline' | grep '# 1' | awk '{print $10}')
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echo "Fixing: " $block
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calcForm="(($block-2048)*512)/4096"
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ddblock=$(echo $calcForm | bc)
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#echo '(($block-2048)*512)/4096'
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echo "seek (dd): " $ddblock
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dd if=/dev/random of=$DISK'1' bs=4096 count=1 seek=$block
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echo ""
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let ddblock+=1
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echo "seek (dd): " $ddblock
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dd if=/dev/random of=$DISK'1' bs=4096 count=1 seek=$block
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echo ""
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let ddblock-=2
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echo "seek (dd): " $ddblock
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dd if=/dev/random of=$DISK'1' bs=4096 count=1 seek=$block
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echo ""
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smartctl -t short $DISK -q errorsonly
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sleep 10
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echo "New badblock: "
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smartctl --all $DISK | grep 'Short offline' | grep '# 1' | awk '{print $10}'
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exit 0
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#######
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SRC: https://linoxide.com/linux-how-to/how-to-fix-repair-bad-blocks-in-linux/
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bc 1.07.1
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Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006, 2008, 2012-2017 Free Software Foundation, Inc.
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This is free software with ABSOLUTELY NO WARRANTY.
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For details type `warranty'.
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L=99846
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(standard_in) 1: syntax error
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l=99846
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s=2048
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b=4096
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(l-s)*512
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50072576
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50072576/b
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12224
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l=109614
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((l-s)*512)/b
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13445
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l=128153
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((l-s)*512)/b
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15763
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l=484030
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((l-s)*512)/b
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60247
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