code.delx.au - monosys/blob - zfs/bsnap

   1 #!/bin/bash
   2
   3 set -eu
   4
   5 function snap {
   6     unsnap
   7
   8     znap-list | xargs -n1 znap-mount /a
   9     mkdir -p /a/boot
  10     mount --bind /boot /a/boot
  11 }
  12
  13 function unsnap {
  14     umount /a/boot || true
  15     rmdir /a/boot || true
  16     znap-umount-all /a
  17 }
  18
  19 if [ "$(id -u)" -ne 0 ]; then
  20     echo "Must be root"
  21     exit 1
  22 fi
  23
  24 if [ "${1:-}" = "off" ]; then
  25     unsnap
  26 elif [ "${1:-}" = "on" ]; then
  27     snap
  28 else
  29     echo "Usage: $0 on|off"
  30     exit 1
  31 fi