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fix: Skip exisiting boot image

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Kroese 2024-05-10 16:28:40 +02:00 • committed by GitHub
parent 5bfcb0c2cc
commit 45421e257e
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1 changed files with 5 additions and 3 deletions
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8
src/define.sh
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@ -1199,15 +1199,17 @@ prepareLegacy() {
local iso="$1"
local dir="$2"
local file="$dir/boot.img"
ETFS="boot.img"
rm -f "$dir/$ETFS"
ETFS=$(basename "$file")
[ -f "$file" ] && [ -s "$file" ] && return 0
rm -f "$file"
local len offset
len=$(isoinfo -d -i "$iso" | grep "Nsect " | grep -o "[^ ]*$")
offset=$(isoinfo -d -i "$iso" | grep "Bootoff " | grep -o "[^ ]*$")
dd "if=$iso" "of=$dir/$ETFS" bs=2048 "count=$len" "skip=$offset" status=none && return 0
dd "if=$iso" "of=$file" bs=2048 "count=$len" "skip=$offset" status=none && return 0
return 1
}