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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.

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Disk space counted twice on root folder? (lemmy.world)

submitted 5 months ago* (last edited 5 months ago) by BeatTakeshi to c/[email protected]

31 comments fedilink hide all child comments

Edit: SOLVED thanks to r00ty !

Hello, I have this weird issue that my Debian 11 will tell me the root folder is full, while I can only find files for half of the accounted space.

df -h reports 56G while the disk analyser (sudo baobab) only finds 28G.

Anyone ever encountered this? I don't have anything mounted twice.... (Not sure what udev is). Also it does not add up to 100%, it should say 7.2G left not 4.1G

df -h /dev/sda* Filesystem Size Used Avail Use% Mounted on udev 16G 0 16G 0% /dev /dev/sda1 511M 22M 490M 5% /boot/efi /dev/sda2 63G 56G 4.1G 94% / /dev/sda4 852G 386G 423G 48% /home

Edit: my mtab

Edit 2: what Gparted shows

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[–] [email protected] 9 points 5 months ago (3 children)

What FS you're on? I'm using BTRFS and have the same problem. Simply because disk analyzer doesn't read snapshots.

[–] [email protected] 1 points 5 months ago (1 children)

I learned this the hard way when I accidentally deleted my root filesystem last month trying to free up snapshot space.

[–] [email protected] 5 points 5 months ago

Btrfs subvolume create /.nodelete

That way, "btrfs sub del" cannot hit your root subvolume without you first removing .nodelete .

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