Marc S. Weidner
053a06d7e1
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Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
57 lines
1.6 KiB
Bash
57 lines
1.6 KiB
Bash
#!/bin/bash
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#######################################
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# Detects and collects all boot devices for GRUB installation.
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# Supports /dev/sdX, /dev/vdX, /dev/hdX, /dev/nvmeXn1, /dev/mmcblkX.
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# Globals:
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# VAR_RECIPE_HIGHEST_DEVICE
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# ary_bootdev_all
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# grub_bootdev
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# Arguments:
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# None
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# Returns:
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# 0: on success
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#######################################
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get_all_boot_devs() {
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### Declare Arrays, HashMaps, and Variables.
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declare -ag ary_bootdev_all=()
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declare dev="" dev_prefix="" dev_path="" letter=""
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declare -i ascii=0 ascii_end=0 ascii_start=0
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### Determine prefix from grub_bootdev (e.g., "sd", "vd", "nvme", "mmcblk")
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dev_prefix=$(basename "${grub_bootdev}" | sed -E 's/^([a-z]+)[a-z0-9]*$/\1/')
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case "${dev_prefix}" in
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sd|vd|hd)
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ascii_start=$(printf '%d' "'a")
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ascii_end=$(printf '%d' "'${VAR_RECIPE_HIGHEST_DEVICE}")
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for ((ascii = ascii_start; ascii <= ascii_end; ascii++)); do
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letter=$(printf "%b" "\\$(printf '%03o' "${ascii}")")
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dev_path="/dev/${dev_prefix}${letter}"
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[[ -b "${dev_path}" ]] && ary_bootdev_all+=("${dev_path}")
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done
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;;
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nvme)
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# shellcheck disable=SC2312
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while read -r dev; do
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ary_bootdev_all+=("/dev/${dev}")
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done < <(lsblk -dn -o NAME | grep -E '^nvme[0-9]+n1$')
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;;
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mmcblk)
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# shellcheck disable=SC2312
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while read -r dev; do
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ary_bootdev_all+=("/dev/${dev}")
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done < <(lsblk -dn -o NAME | grep -E '^mmcblk[0-9]+$')
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;;
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*)
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do_log "warning" "file_only" "4230() Unrecognized boot device prefix: ${dev_prefix}"
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;;
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esac
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return 0
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}
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