/lib/partman/fstab.d/btrfs 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 45 46 47 48 49 50 51 52 53 54 55 56 57 | #!/bin/sh
. /lib/partman/lib/base.sh
home_found="unknown"
for dev in $DEVICES/*; do
[ -d $dev ] || continue
cd $dev
open_dialog PARTITIONS
while { read_line num id size type fs path name; [ "$id" ]; }; do
[ $fs != free ] || continue
[ -f "$id/method" ] || continue
[ -f "$id/acting_filesystem" ] || continue
method=$(cat $id/method)
filesystem=$(cat $id/acting_filesystem)
mountpoint=$(cat $id/mountpoint)
case "$filesystem" in
btrfs)
[ -f "$id/mountpoint" ] || continue
# due to #249322, #255135, #258117:
if [ "$mountpoint" = /tmp ]; then
rm -f $id/options/noexec
fi
options=$(get_mountoptions $dev $id)
if [ "$mountpoint" = / ]; then
if [ "$home_found" = "unknown" ]; then
home_found="false"
fi
pass=1
home_options="${options:+$options,}subvol=@home"
options="${options:+$options,}subvol=@"
home_path="$path"
home_mp="$mountpoint"home
elif [ "$mountpoint" = /home ]; then
pass=2
options="${options:+$options,}subvol=@home"
home_found=true
else
pass=2
fi
echo "$path" "$mountpoint" btrfs $options 0 $pass
;;
*)
if [ "$mountpoint" = "/home" ]; then
home_found="true"
fi
;;
esac
done
close_dialog
done
if [ "$home_found" = "false" ]; then
echo "$home_path" "$home_mp" btrfs "$home_options" 0 2
home_found="true"
fi
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