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Today's achievement: Reliably backing up my #FreeBSD systems using full disk encryption onto a USB hard drive that's also using full disk encryption.
Making periodic #ZFS snapshots automatically: https://mwl.io/archives/2140
Sending those ZFS snapshots to the backup disk: https://www.ccammack.com/posts/back-up-zfs-to-a-removable-drive-using-zxfer/
I had to add "objsetid" to the list of -I exclusions in the zxfer command to work around a bug it has.
What feeling is worse than spotting errors just a few hours after uploading? Not being able to fix them until the next day. Yeah. Fixed now in clearly marked edits.
This took entirely too long to write up, so many times longer than actually doing it, but here it is!
GELI Encrypted USB Backup in #FreeBSD 13: https://thornton2.com/unix/freebsd/geli-encrypted-usb-backup.html