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  1.  
  2. #!/bin/bash
  4. systemctl stop btrfs-scrub@-.timer
  5. systemctl stop snapper-cleanup.timer
  6. systemctl stop snapper-timeline.timer
  8. mount -o noatime,compress=lzo,autodefrag /dev/mapper/cryptroot /home/niko/nosnap/rootfs/
  10. cd /home/niko/nosnap
  12. rm ro_snapshots 2> /dev/null
  14. for snapshot in $(btrfs subvolume list -p /home/niko/nosnap/rootfs | awk '{ print $11 }'); do
  15. ro=$(btrfs property get -ts /home/niko/nosnap/rootfs/${snapshot} | awk -F "=" '{print $2}');
  16. if [ "${ro}" == "true" ]; then
  17. echo ${snapshot}": "${ro}; echo ${snapshot} >> ro_snapshots;
  18. btrfs property set -ts /home/niko/nosnap/rootfs/${snapshot} ro false;
  19. echo "Set to: "$(btrfs property get -ts /home/niko/nosnap/rootfs/${snapshot} | awk -F "=" '{print $2}');
  20. fi;
  21. done
  23. rm rootfs.hash 2> /dev/null
  25. btrfs filesystem usage /home/niko/nosnap/rootfs/ > before_balance
  26. btrfs balance start /home/niko/nosnap/rootfs/ --full-balance
  27. btrfs filesystem usage /home/niko/nosnap/rootfs/ > after_balance
  29. time duperemove -drh --dedupe-options=noblock --hashfile=/home/niko/nosnap/rootfs.hash /home/niko/nosnap/rootfs/ 2> duperemove.err
  30. #time duperemove -drh --hashfile=/home/niko/nosnap/rootfs.hash /home/niko/nosnap/rootfs/ 2> duperemove.err
  32. rm rootfs.hash 2> /dev/null
  34. btrfs filesystem usage /home/niko/nosnap/rootfs/ > after_duperemove
  35. btrfs balance start /home/niko/nosnap/rootfs/ --full-balance
  36. btrfs filesystem usage /home/niko/nosnap/rootfs/ > after_duperemove_and_balance
  38. for snapshot in $(cat ro_snapshots); do
  39. btrfs property set -ts /home/niko/nosnap/rootfs/${snapshot} ro true;
  40. done
  42. rm ro_snapshots 2> /dev/null
  44. umount rootfs/
  46. systemctl start btrfs-scrub@-.timer
  47. systemctl start snapper-cleanup.timer
  48. systemctl start snapper-timeline.timer
  49.  
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