Snapper Rollbacks Strategy

Hi,
following on from a previous thread, I have successfully done a snapper rollback of a previous snapshot which then created snapshot #93. All fine.

But when I do a zypper dup AND because my SSD is low on disk space I usually delete all snapshots before the upgrade. Can I now delete all snapshots sudo snapper delete 51-93? I’m a bit puzzled as I’m not sure what the asterisk against #93 means.

chris@asus-roc:~>$sudo snapper list
[sudo] password for root: 
  # | Type   | Pre # | Date                     | User | Cleanup | Description           | Userdata     
----+--------+-------+--------------------------+------+---------+-----------------------+--------------
 0  | single |       |                          | root |         | current               |              
 1  | single |       | Fri 08 Feb 2019 12:53:42 | root | number  | first root filesystem |              
51  | pre    |       | Wed 17 May 2023 16:44:47 | root | number  | zypp(zypper)          | important=yes
52  | post   |    51 | Wed 17 May 2023 16:45:21 | root | number  |                       | important=yes
55  | pre    |       | Sun 28 May 2023 11:31:21 | root | number  | zypp(zypper)          | important=yes
56  | post   |    55 | Sun 28 May 2023 11:42:44 | root | number  |                       | important=yes
57  | pre    |       | Sun 28 May 2023 11:45:12 | root | number  | zypp(zypper)          | important=yes
58  | post   |    57 | Sun 28 May 2023 11:45:53 | root | number  |                       | important=yes
81  | pre    |       | Sun 28 May 2023 13:40:10 | root | number  | yast sw_single        |              
82  | pre    |       | Sun 28 May 2023 13:40:37 | root | number  | zypp(ruby.ruby3.2)    | important=no 
83  | post   |    82 | Sun 28 May 2023 13:45:20 | root | number  |                       | important=no 
84  | post   |    81 | Sun 28 May 2023 13:45:39 | root | number  |                       |              
89  | pre    |       | Sun 28 May 2023 14:05:47 | root | number  | yast alternatives     |              
90  | post   |    89 | Sun 28 May 2023 14:06:05 | root | number  |                       |              
91  | pre    |       | Sun 28 May 2023 14:10:44 | root | number  | yast snapper          |              
92  | single |       | Sun 28 May 2023 16:25:53 | root | number  | rollback backup of #1 | important=yes
93* | single |       | Sun 28 May 2023 16:25:54 | root |         | writable copy of #55  |              
chris@asus-roc:~>$

It means it is the currently active snapshot (i.e. your current root filesystem).

Suggested reading:

https://en.opensuse.org/openSUSE:Snapper_Tutorial

Thanks!!! I was reading System Recovery and Snapshot Management with Snapper | Reference | openSUSE Leap 15.0 and this will help as well.

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