Flying to Iceland tomorrow, for a #Mailpile meetup!
Preparation: the pre-travel backup shuffle.
Last time I travelled, I bought a 128GB USB 3.0 stick.
Sooo huuuuge! And yet so tiny. This thing is big enough that I can make multiple rsync snapshots of my full home directory. Encrypted, of course.
If my laptop gets lost or stolen, I buy a new one, install Linux, take this thing out of my pocket, cp -a . /home/bre and get back to work.
If I shop decisively enough, that's less than a day's hit to my productivity.
@HerraBRE how often do you snapshot and with what tool/command?
@webmind Not as often as I should!
Media is USB storage, LUKS+EXT3/4.
Snapshots are made with rsync, in the mode where it compares the source with a previous snapshot, and the new snapshot ends up being mostly hard links to previously copied data.
Saves time and space, each snapshot is a complete browsable tree of files. This makes restoration of individual files is super easy, which I like.
The only downside is it breaks access times. If I cared I'd solve that with a read-only bind mound.
@HerraBRE can you give rsync line?
I commented my #rsync-based #backup script and put it in a gist.
https://gist.github.com/BjarniRunar/bd34c1e2e8101f6ff237add5db43eb78
I feel dirty. That should be on my own website. I hope it's useful!
💾 📀 💿 🤖
@HerraBRE @webmind Cool! I really like people sharing their snippets, it's always a pleasure to read someone elses work.
I can really recommend using `shellcheck` for any shell-scripting.
Some style aspects:
- `--exclude-file` is a great rsync feature, I can only recommend it
- Using `set -eu` improves writing style a lot
- trap is your friend
- Are you using any `bash` specific code? If not => `sh`
- false | true; echo $?
@pl @HerraBRE @webmind Thanks, was already using set -e but adding -u (unset variables treated as an error) looks useful, too.