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#!/bin/bash
# recognize partitioned loop devices
source $TOP/tests/common
if ! losetup --help | grep -q 'partscan'; then
_not_run "losetup --partscan not available"
exit 0
fi
check_prereq mkfs.btrfs
setup_root_helper
run_check truncate -s0 img
chmod a+w img
cp partition-1g-1g img
run_check truncate -s2g img
loopdev=$(run_check_stdout $SUDO_HELPER losetup --partscan --find --show img)
base=$(basename $loopdev)
# expect partitions named like loop0p1 etc
for looppart in $(ls /dev/$base?*); do
run_check $SUDO_HELPER $TOP/mkfs.btrfs -f $looppart
run_check $SUDO_HELPER $TOP/btrfs inspect-internal dump-super $looppart
done
# cleanup
run_check $SUDO_HELPER losetup -d $loopdev
run_check truncate -s0 img
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