/lib/partman/check.d/05duplicate_labels is in ubiquity 2.18.7.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | #! /bin/sh
. /lib/partman/lib/base.sh
for dev in $DEVICES/*; do
[ -d "$dev" ] || continue
cd $dev
partitions=
open_dialog PARTITIONS
while { read_line num id size type fs path name; [ "$id" ]; }; do
[ "$fs" != free ] || continue
[ -s "$id/label" ] || continue
partitions="${partitions:+$partitions
}$(cat "$id/label") $path"
done
close_dialog
partitions="$(echo "$partitions" | sort)"
oldlabel=
oldpath=
IFS="$NL"
for partition in $partitions; do
restore_ifs
label="${partition% *}"
path="${partition##* }"
if [ "$label" = "$oldlabel" ]; then
db_subst partman-target/same_label PART1 "$(humandev "$oldpath")"
db_subst partman-target/same_label PART2 "$(humandev "$path")"
db_subst partman-target/same_label LABEL "$label"
db_capb align
db_input critical partman-target/same_label || true
db_go || true
db_capb backup align
exit 1
else
oldlabel="$label"
oldpath="$path"
fi
IFS="$NL"
done
restore_ifs
done
exit 0
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