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Shallow and Pedantic

A person/tech/code blog of a coder/techie/person. Like calculus in a kiddie pool, the author of this blog is known to be quite shallow and pedantic.

zsnapfree

Copy-on-write makes snapshots fast and accessible, but deleting them to reclaim disk space can be a bit confusing. Let’s have a quick primer on how those work, and look at a small utility to help reason about it.

zsnapfree is a TUI for showing how much space can be reclaimed by freeing zfs snapshots. It is a TUI wrapper over the standard zfs tool.

If you just want to see zsnapfree in action, skip to the screencast.

Adventures with slow boot

Rebooting a modern desktop computer really shouldn’t take very long, so when it was somewhat-regularly taking well over 10 minutes just to shut down, I got curious, and ended up looking at netdata, jitter, anacron, and even ansible.

ncdu-import

Figuring out what’s taking up space is a well-known issue, with a variety of great tools for it… if we’re talking about files on a local hard drive.

Timezone Changes

In October 2023, two weeks before daylight savings time (“summer time”) was set to end, Israel briefly considered delaying this. That would’ve been a terrible idea, even if it weren’t at war at the time.