From 3cbe80fd1738dfb896e0cefa1fc2cf0d0ea74319 Mon Sep 17 00:00:00 2001 From: mms Date: Mon, 4 Mar 2024 23:23:11 +0100 Subject: chore: bsd to org --- content/blog/2023/first-time-zfs-saved-me.md | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 content/blog/2023/first-time-zfs-saved-me.md (limited to 'content/blog/2023/first-time-zfs-saved-me.md') diff --git a/content/blog/2023/first-time-zfs-saved-me.md b/content/blog/2023/first-time-zfs-saved-me.md new file mode 100644 index 0000000..0e2fa32 --- /dev/null +++ b/content/blog/2023/first-time-zfs-saved-me.md @@ -0,0 +1,28 @@ +--- +title: "First Time the ZFS Saved Me" +category: blog +abstract: Automatic snapshot saved me from a full system reinstalation +date: 2023-03-18T06:04:33+01:00 +year: 2023 +draft: false +--- +{{}} +As I was recently trying to [enable auto-switching audio to headphones](/2023/switching-between-speakers-and-headphones-on-freebsd/), I borked my FreeBSD installation. Somehow the speakers stopped working, and the headphone output added a loud hiss. Unfortunately, I was unable to fix it. + +My first thought was to reinstall the system, but then I remembered that I've read about [ZFS Snapshots](https://docs.oracle.com/cd/E19253-01/819-5461/gbcya/index.html). + +``` +zfs list -t snapshot +``` + +revealed that FreeBSD has already created a few of those recently. I knew this OS and ZFS go hand in hand, but I was still pleasantly surprised. + +To return the system to a previous version, all I had to do was + +``` +zfs snapshot +``` + +and my system stopped responding. I was in X, so that's entirely on one. But the rollback was so instantaneous that my first thought was that something fried. + +After a good, old hard reset, everything worked as it was a few days ago. ZFS very well may be my new best friend. -- cgit v1.2.3