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Disk space counted twice on root folder?
(lemmy.world)
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
What FS you're on? I'm using BTRFS and have the same problem. Simply because disk analyzer doesn't read snapshots.
Plain ext4
I learned this the hard way when I accidentally deleted my root filesystem last month trying to free up snapshot space.
Btrfs subvolume create /.nodelete
That way, "btrfs sub del" cannot hit your root subvolume without you first removing .nodelete .