this post was submitted on 20 Mar 2024
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Stupid question maybe, but would your backups even be safe? Sure, it was mentioned that you had to enter your sudo password, but let's say you did that because you are careless, "rm -rf" would wipe all connected and mounted drives as well, so your backups would be gone, wouldn't they? Or does Timeshift mount and unmount on demand? If so, what would happen if you ran "rm -rf" while a backup is being saved?! It seems to me that a simple "make backups" isn't enough here.
I do not know much about Timeshift and Lucky backup. But a proper backup is not a on the same system even if it is a second drive internally. For some quick file recovery after deleting things you shouldn't have it is fine. A proper backup should be a separate system and ideally 2 systems one externally but this is overkill for most folks. With a separate system you can setup automated backups and disaster recovery. if you are scared the backup system can get compromised from the main system. you can set things up in such a way that the backup works in pull mode and the main system being backed up has no access to the backup system.
Not everyone can have 2 computers for all kinds of reasons.
Everyone do you best. Prioritize your data and take stronger precautions for the most important.
No one says you need to have 2 computers, a second external drive is fine.
A separate computer/server might be the best but their are many ways. Cloud storage is one of the many options that can be used as well.