Hey,
First time setting up Discourse here! I’m trying to backup my development instance of Discourse as I am ready to host it online, but when going in Admin>Backups>Backup, it says Backup Failed. Here’s my log: [2018-07-12 20:48:43] 'cryptoguard' has started the backup! [2018-07-12 20:48:4 - Pastebin.com
What’s going wrong here? The instance is installed locally on my Macbook Pro and I want to make a backup to host it on some server.
Hmm it looks like this is related to
https://github.com/discourse/discourse/commit/83110a1a812140382167e8f5339c8bde3ee6610d
[2018-07-12 20:48:45] EXCEPTION: Failed to archive uploads.
tar: Option --warning=no-file-changed is not supported
Usage:
List: tar -tf <archive-filename>
Extract: tar -xf <archive-filename>
Create: tar -cf <archive-filename> [filenames...]
Help: tar --help
Can you try upgrading tar to at least 1.23?
What worked for me on a mac was installing gnu-tar with Homebrew and then adding it to my PATH in my .bash_profile.
Hmm @pfaffman can you confirm why this change was needed? It looks like we raised the bar on our tar version requirement a lot.
I’m on version 1.30 
That did the trick! Thanks a lot mate 
Hmm. Seemed like a good idea at the time.
I can’t recall the details, but apparently I was having backups fail because something changed while the backup was happening. The only way that I can think of for files to change during a backup is for something to get moved to tombstone, or a file is being uploaded when tar starts?
I suspect that another solution (other than for luck during a backup) is to turn on read only during backup.
Having to install homebrew to make development work on the Mac does seem onerous. I have been using the gnu utilities for decades, so I didn’t think about them not being available on the Mac.
I guess the simple thing is to revert my change. Or we could test which version of tar is available.
Installing Homebrew is a part of the Mac setup guide. If gnu-tar needs to be used for compressing backups, then we just need to update Install Discourse on macOS for development.
Oh! Then it’s not so much to ask after all!
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