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docs: usage of btrbk

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Ryan Yin
2024-03-31 23:06:53 +08:00
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modules/nixos/base/btrbk.nix
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{ {
# ==================================================================
#
# Tool for creating snapshots and remote backups of btrfs subvolumes # Tool for creating snapshots and remote backups of btrfs subvolumes
# https://github.com/digint/btrbk # https://github.com/digint/btrbk
#
# Usage:
# 1. btrbk will create snapshots on schedule
# 2. we can use `btrbk run` command to create a backup manually
#
# How to restore a snapshot:
# 1. Find the snapshot you want to restore in /snapshots
# 2. Use `btrfs subvol delete /btr_pool/@persistent` to delete the current subvolume
# 3. Use `btrfs subvol snapshot /snapshots/2021-01-01 /btr_pool/@persistent` to restore the snapshot
# 4. reboot the system or remount the filesystem to see the changes
#
# ==================================================================
services.btrbk.instances.btrbk = { services.btrbk.instances.btrbk = {
# How often this btrbk instance is started. See systemd.time(7) for more information about the format. # How often this btrbk instance is started. See systemd.time(7) for more information about the format.
onCalendar = "daily"; onCalendar = "daily";