diff options
| -rw-r--r-- | btrfs-snap.sh | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/btrfs-snap.sh b/btrfs-snap.sh new file mode 100644 index 0000000..cc2e5a9 --- /dev/null +++ b/btrfs-snap.sh @@ -0,0 +1,23 @@ +#!/bin/sh +set -x +set -e +timestamp() { + date +%m.%d.%y_%H.%M.%S +} + +rootfs="glibc" +snap="${rootfs}-snap" + +cd /ROOT + +if [ -e "$snap" ] ; then + btrfs sub del "$snap" +fi + +if ! [ -e "bak" ] ; then + btrfs sub create "bak" +fi + +btrfs sub snap -r "$rootfs" "bak/${rootfs}-$(timestamp)" +btrfs sub snap "$rootfs" "$snap" +sed -i.bak -e"s/subvol=${rootfs}/subvol=${snap}/g" "${snap}/etc/fstab" |