x86: search PARTUUID in any block device
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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@ -17,7 +17,8 @@ platform_export_bootpart() {
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PARTUUID=[a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9]-02)
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uuid="${disk#PARTUUID=}"
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uuid="${uuid%-02}"
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for disk in /dev/[hsv]d[a-z] /dev/xvd[a-z]; do
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for disk in /dev/*; do
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[ -b "$disk" ] || continue
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set -- $(dd if=$disk bs=1 skip=440 count=4 2>/dev/null | hexdump -v -e '4/1 "%02x "')
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if [ "$4$3$2$1" = "$uuid" ]; then
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export BOOTPART="${disk}1"
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