33 lines
807 B
Bash
Executable File
33 lines
807 B
Bash
Executable File
#!/bin/bash
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# grub2-unsign
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# Unsigns every file in /boot. Depends on grub2-verify
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# Author: Bandie
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# Licence: GNU-GPLv3
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# Check if something is wrong
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grub-verify
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stat=$?
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case "$stat" in
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1)
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printf '%s\n' "grub2-verify has detected a one or more bad signatures." "Please check for malicious software before you're unsigning everything!" >&2
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exit 1
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;;
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2)
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printf 'Everything is unsigned already.\n'
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exit 0
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;;
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3)
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printf 'Ignoring missing signatures...\n'
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;&
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0|3)
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# Then remove the signatures.
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find /boot -iname "efi" -prune -o -name '*.sig' -exec shred --remove=unlink {} +
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echo "GRUB2 unsigned. WARNING: If you want to deactivate GRUB2's signature feature, change the check_signatures variable in the headers file!"
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exit 0
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;;
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*)
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printf 'Something unknown happened!\n'
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exit 99
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esac
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