this post was submitted on 03 Feb 2026
22 points (95.8% liked)
Linux
61999 readers
1650 users here now
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Rules
- Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
- No misinformation
- No NSFW content
- No hate speech, bigotry, etc
Related Communities
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
founded 6 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Simplest put, a fedora immutable usually keeps two images, the one you'll boot into next reboot, and the one you're running. If a rpm-ostree update hasn't been run it'll be the one you're running and the last one. My bazzite (heavier than silverblue I guess) images are ~ 14Gb, you need room for three (the two you're using and room for downloading the next) plus 3% of your hard drive because fedora says so, so 3*14 = 42 + .03 * 240 = 42 + 7.2 = 49.2 =~ 50Gb.
Wait a sec, when I actually do a
sudo du -sh /sysroot/ostree/deploy/fedora/deploy/*I get 14Gb for my previous one and 2.1Gb for my current one, so there's some diff black magic fuckery (ostree chunking) going on, which makes sense because it's not taking that long to download. So 50Gb would be super safe, you might get away with 25 depending on how different the two images are (i.e. how much has been updated), but updating to the next major fedora version (e.g. 42->43) would be iffy.
Upshot is, it shouldn't have filled to 90-something in the first place (maybe before ostree chunking, but even then), but if you end up with a lot of entries in your GRUB they're all taking a notable chunk of space and you'll need to purge some.