blob: c61af4065177c7ae650410bea7fc5fea50422495 (
plain)
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
58
59
60
61
62
63
64
65
66
67
|
DATASET_ROOT=$1
DATASET_TARGET=$2
MOUNTPOINT_TARGET=$(zfs get -H mountpoint -o value $DATASET_TARGET)
if ! test -d "$MOUNTPOINT_TARGET"; then
echo "Please run this program with a source and a target dataset name as arguments"
echo "e.g. $0 zpool/dataset1 zpool/dataset2"
exit
fi
# make sure, that ctrl-c also works in the inner loops
trap exit INT
# recursively contains all snapshot names (the part after the @) from root on, sorted and only once
SNAPSHOTS=$(zfs list -H -r $DATASET_ROOT -oname -tsnap | cut -d@ -f2 | sort | uniq)
DATASETS=$(zfs list -H -r $DATASET_ROOT -oname -t filesystem)
echo "We are going to flatten the hierachy of this dataset:"
printf " %s\n" $DATASETS
echo "into the dataset with the name:"
echo " $DATASET_TARGET"
echo "mounted under:"
echo " $MOUNTPOINT_TARGET"
echo ""
echo "You have 10 seconds to abort this with CTRL-C"
sleep 10
for SNAPSHOT in $SNAPSHOTS; do
echo ""
echo ""
echo "==========================="
echo "Next snapshot is: $SNAPSHOT"
echo "==========================="
for DATASET in $DATASETS; do
MOUNTPOINT=$(zfs get -H mountpoint -o value $DATASET)
if [[ $MOUNTPOINT == "legacy" ]]; then
MOUNTPOINT=$(findmnt -n -o target $DATASET)
if test -d $MOUNTPOINT; then
>&2 echo "Dataset has a legacy mountpoint, but was not found in the fstab: $DATASET"
continue
fi
fi
if [[ $MOUNTPOINT == "-" ]]; then
>&2 echo "Dataset does not have a mount point or is a vdev: $DATASET"
continue
fi
SNAPDIR=$(realpath $MOUNTPOINT/.zfs/snapshot/$SNAPSHOT)
if test -d $SNAPDIR; then
TARGET_DIR="$(realpath $MOUNTPOINT_TARGET)$(realpath $MOUNTPOINT)"
mkdir -p "$TARGET_DIR"
echo rsync --info=stats3 -a "$SNAPDIR/" "$TARGET_DIR/"
if ! rsync --info=stats3 -a "$SNAPDIR/" "$TARGET_DIR/" ; then
>&2 echo "rsync could not entirely copy from $SNAPDIR to $DATASET_TARGET"
fi
fi
done
NEW_SNAPSHOT="$DATASET_TARGET@$SNAPSHOT"
echo "Files copied, creating snapshot: $NEW_SNAPSHOT"
zfs snap $NEW_SNAPSHOT
done
|
