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188 lines
8.0 KiB
Bash
Executable File
188 lines
8.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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# SPDX-License-Identifier: LGPL-2.1-or-later
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set -eux
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set -o pipefail
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# shellcheck source=test/units/util.sh
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. "$(dirname "$0")"/util.sh
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at_exit() {
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set +e
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[[ -n "${LOOP:-}" ]] && losetup -d "$LOOP"
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[[ -n "${WORK_DIR:-}" ]] && rm -fr "$WORK_DIR"
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}
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trap at_exit EXIT
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WORK_DIR="$(mktemp -d)"
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mkdir -p "$WORK_DIR/mnt"
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systemd-mount --list
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systemd-mount --list --full
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systemd-mount --list --no-legend
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systemd-mount --list --no-pager
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systemd-mount --list --quiet
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systemd-mount --list --json=pretty
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# tmpfs
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mkdir -p "$WORK_DIR/mnt/foo/bar"
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systemd-mount --tmpfs "$WORK_DIR/mnt/foo"
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test ! -d "$WORK_DIR/mnt/foo/bar"
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touch "$WORK_DIR/mnt/foo/baz"
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systemd-umount "$WORK_DIR/mnt/foo"
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test -d "$WORK_DIR/mnt/foo/bar"
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test ! -e "$WORK_DIR/mnt/foo/baz"
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# overlay
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systemd-mount --type=overlay --options="lowerdir=/etc,upperdir=$WORK_DIR/upper,workdir=$WORK_DIR/work" /etc "$WORK_DIR/overlay"
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touch "$WORK_DIR/overlay/foo"
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test -e "$WORK_DIR/upper/foo"
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systemd-umount "$WORK_DIR/overlay"
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# We're going to play around with block/loop devices, so bail out early
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# if we're running in nspawn
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if systemd-detect-virt --container >/dev/null; then
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echo "Container detected, skipping the test"
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exit 0
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fi
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# Set up a simple block device for further tests
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dd if=/dev/zero of="$WORK_DIR/simple.img" bs=1M count=16
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mkfs.ext4 -L sd-mount-test "$WORK_DIR/simple.img"
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LOOP="$(losetup --show --find "$WORK_DIR/simple.img")"
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udevadm wait --timeout 60 --settle "$LOOP"
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# Also wait for the .device unit for the loop device is active. Otherwise, the .device unit activation
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# that is triggered by the .mount unit introduced by systemd-mount below may time out.
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timeout 60 bash -c "until systemctl is-active $LOOP; do sleep 1; done"
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mount "$LOOP" "$WORK_DIR/mnt"
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touch "$WORK_DIR/mnt/foo.bar"
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umount "$LOOP"
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(! mountpoint "$WORK_DIR/mnt")
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# Wait for the mount unit to be unloaded. Otherwise, creation of the transient unit below may fail.
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MOUNT_UNIT=$(systemd-escape --path --suffix=mount "$WORK_DIR/mnt")
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timeout 60 bash -c "while [[ -n \$(systemctl list-units --all --no-legend $MOUNT_UNIT) ]]; do sleep 1; done"
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# Mount with both source and destination set
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systemd-mount "$LOOP" "$WORK_DIR/mnt"
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systemctl status "$WORK_DIR/mnt"
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systemd-mount --list --full
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test -e "$WORK_DIR/mnt/foo.bar"
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systemd-umount "$WORK_DIR/mnt"
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# Same thing, but with explicitly specified filesystem and disabled filesystem check
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systemd-mount --type=ext4 --fsck=no --collect "$LOOP" "$WORK_DIR/mnt"
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systemctl status "$(systemd-escape --path "$WORK_DIR/mnt").mount"
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test -e "$WORK_DIR/mnt/foo.bar"
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systemd-mount --umount "$LOOP"
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# Discover additional metadata (unit description should now contain filesystem label)
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systemd-mount --no-ask-password --discover "$LOOP" "$WORK_DIR/mnt"
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test -e "$WORK_DIR/mnt/foo.bar"
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systemctl show -P Description "$WORK_DIR/mnt" | grep -q sd-mount-test
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systemd-umount "$WORK_DIR/mnt"
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# Set a unit description
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systemd-mount --description="Very Important Unit" "$LOOP" "$WORK_DIR/mnt"
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test -e "$WORK_DIR/mnt/foo.bar"
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systemctl show -P Description "$WORK_DIR/mnt" | grep -q "Very Important Unit"
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systemd-umount "$WORK_DIR/mnt"
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# Set a property
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systemd-mount --property="Description=Foo Bar" "$LOOP" "$WORK_DIR/mnt"
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test -e "$WORK_DIR/mnt/foo.bar"
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systemctl show -P Description "$WORK_DIR/mnt" | grep -q "Foo Bar"
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systemd-umount "$WORK_DIR/mnt"
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# Set mount options
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systemd-mount --options=ro,x-foo-bar "$LOOP" "$WORK_DIR/mnt"
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test -e "$WORK_DIR/mnt/foo.bar"
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systemctl show -P Options "$WORK_DIR/mnt" | grep -Eq "(^ro|,ro)"
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systemctl show -P Options "$WORK_DIR/mnt" | grep -q "x-foo-bar"
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systemd-umount "$WORK_DIR/mnt"
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# Mount with only source set
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systemd-mount "$LOOP"
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systemctl status /run/media/system/sd-mount-test
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systemd-mount --list --full
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test -e /run/media/system/sd-mount-test/foo.bar
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systemd-umount LABEL=sd-mount-test
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# Automount
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systemd-mount --automount=yes "$LOOP" "$WORK_DIR/mnt"
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systemd-mount --list --full
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systemctl status "$(systemd-escape --path "$WORK_DIR/mnt").automount"
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[[ "$(systemctl show -P ActiveState "$WORK_DIR/mnt")" == inactive ]]
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test -e "$WORK_DIR/mnt/foo.bar"
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systemctl status "$WORK_DIR/mnt"
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systemd-umount "$WORK_DIR/mnt"
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# Automount + automount-specific property
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systemd-mount -A --automount-property="Description=Bar Baz" "$LOOP" "$WORK_DIR/mnt"
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systemctl show -P Description "$(systemd-escape --path "$WORK_DIR/mnt").automount" | grep -q "Bar Baz"
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test -e "$WORK_DIR/mnt/foo.bar"
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# Call --umount via --machine=, first with a relative path (bad) and then with
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# an absolute one (good)
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(! systemd-umount --machine=.host "$(realpath --relative-to=. "$WORK_DIR/mnt")")
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systemd-umount --machine=.host "$WORK_DIR/mnt"
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# ext4 doesn't support uid=/gid=
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(! systemd-mount -t ext4 --owner=testuser "$LOOP" "$WORK_DIR/mnt")
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# Automount + --bind-device
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systemd-mount --automount=yes --bind-device --timeout-idle-sec=1 "$LOOP" "$WORK_DIR/mnt"
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systemctl status "$(systemd-escape --path "$WORK_DIR/mnt").automount"
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# Trigger the automount
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test -e "$WORK_DIR/mnt/foo.bar"
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# Wait until it's idle again
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sleep 1.5
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# Safety net for slower/overloaded systems
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timeout 10s bash -c "while systemctl is-active -q $WORK_DIR/mnt; do sleep .2; done"
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systemctl status "$(systemd-escape --path "$WORK_DIR/mnt").automount"
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# Disassemble the underlying block device
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losetup -d "$LOOP"
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unset LOOP
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# The automount unit should disappear once the underlying blockdev is gone
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timeout 10s bash -c "while systemctl status '$(systemd-escape --path "$WORK_DIR/mnt".automount)'; do sleep .2; done"
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# Mount a disk image
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systemd-mount --discover "$WORK_DIR/simple.img"
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# We can access files in the image even if the loopback block device is not initialized by udevd.
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test -e /run/media/system/simple.img/foo.bar
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# systemd-mount --list and systemd-umount require the loopback block device is initialized by udevd.
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udevadm settle --timeout 30
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assert_in "/dev/loop.* ext4 +sd-mount-test" "$(systemd-mount --list --full)"
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LOOP_AUTO=$(systemd-mount --list --full --no-legend | awk '$7 == "sd-mount-test" { print $1 }')
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LOOP_AUTO_DEVPATH=$(udevadm info --query property --property DEVPATH --value "$LOOP_AUTO")
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systemd-umount "$WORK_DIR/simple.img"
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# Wait for 'change' uevent for the device with DISK_MEDIA_CHANGE=1.
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# After the event, the backing_file attribute should be removed.
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timeout 60 bash -c "while [[ -e /sys/$LOOP_AUTO_DEVPATH/loop/backing_file ]]; do sleep 1; done"
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# --owner + vfat
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#
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# Create a vfat image, as ext4 doesn't support uid=/gid= fixating for all
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# files/directories
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dd if=/dev/zero of="$WORK_DIR/owner-vfat.img" bs=1M count=16
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mkfs.vfat -n owner-vfat "$WORK_DIR/owner-vfat.img"
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LOOP="$(losetup --show --find "$WORK_DIR/owner-vfat.img")"
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# If the synthesized uevent triggered by inotify event has been processed earlier than the kernel finishes to
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# attach the backing file, then SYSTEMD_READY=0 is set for the device. As a workaround, monitor sysattr
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# and re-trigger uevent after that.
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LOOP_DEVPATH=$(udevadm info --query property --property DEVPATH --value "$LOOP")
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timeout 60 bash -c "until [[ -e /sys/$LOOP_DEVPATH/loop/backing_file ]]; do sleep 1; done"
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udevadm trigger --settle "$LOOP"
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# Also wait for the .device unit for the loop device is active. Otherwise, the .device unit activation
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# that is triggered by the .mount unit introduced by systemd-mount below may time out.
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if ! timeout 60 bash -c "until systemctl is-active $LOOP; do sleep 1; done"; then
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# For debugging issue like
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# https://github.com/systemd/systemd/issues/32680#issuecomment-2120959238
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# https://github.com/systemd/systemd/issues/32680#issuecomment-2122074805
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udevadm info "$LOOP"
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udevadm info --attribute-walk "$LOOP"
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cat /sys/"$(udevadm info --query property --property DEVPATH --value "$LOOP")"/loop/backing_file || :
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false
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fi
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# Mount it and check the UID/GID
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[[ "$(stat -c "%U:%G" "$WORK_DIR/mnt")" == "root:root" ]]
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systemd-mount --owner=testuser "$LOOP" "$WORK_DIR/mnt"
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systemctl status "$WORK_DIR/mnt"
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[[ "$(stat -c "%U:%G" "$WORK_DIR/mnt")" == "testuser:testuser" ]]
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touch "$WORK_DIR/mnt/hello"
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[[ "$(stat -c "%U:%G" "$WORK_DIR/mnt/hello")" == "testuser:testuser" ]]
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systemd-umount LABEL=owner-vfat
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