zbm-syslinux-pacman-hook/pacman-zbm-syslinux-regen.sh

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2023-10-26 02:03:32 +02:00
#!/bin/bash
boot_dir='/boot/syslinux'
boot_dir="${boot_dir%/}"
boot_disk="$(findmnt --noheadings --target "${boot_dir}" --output 'SOURCE')" || {
printf -- '%s\n' \
'Unable to identify boot drive for '"'${boot_dir}'"' boot dir.' \
'Cowardly exiting. No syslinux files nor MBR were overwritten.'
exit 1
}
if [[ "$(<<<"${boot_dir}" wc -l)" -gt '1' ]]; then
printf -- '%s\n' \
'More than one drive mounted at '"'${boot_dir}'"' boot dir.' \
'Cowardly exiting. No syslinux files nor MBR were overwritten.'
exit 1
fi
find "${boot_dir}" -type f -iname '*.c32' -delete
rsync -a '/usr/lib/syslinux/bios/'*'.c32' "${boot_dir}"'/'
extlinux --install "${boot_dir}"
dd bs=440 count=1 conv=notrunc if='/usr/lib/syslinux/bios/mbr.bin' of="${boot_disk}"