I'm using Btrfs, for better or worse. It is a plain btrfs partition with no compression or RAID, nor do I have any snapshots; it is a a simple btrfs partition that the OS is reporting with quite a bit of space free, but I am getting out of space errors when running various operations such as updates.
The operating system tools such as
df report lots of space free:
$ df -h Filesystem Size Used Avail Use% Mounted on udev 7.8G 0 7.8G 0% /dev tmpfs 1.6G 26M 1.6G 2% /run /dev/sda5 354G 313G 41G 89% / tmpfs 7.9G 172M 7.7G 3% /dev/shm tmpfs 5.0M 4.0K 5.0M 1% /run/lock tmpfs 7.9G 0 7.9G 0% /sys/fs/cgroup /dev/sda5 354G 313G 41G 89% /home tmpfs 1.6G 4.0K 1.6G 1% /run/user/139 tmpfs 1.6G 20K 1.6G 1% /run/user/1000
I later found the btrfs tool to show information about the btrfs volumes:
$ btrfs fi show Label: none uuid: 76eb29fb-6909-4cc9-9848-f0b5723802b9 Total devices 1 FS bytes used 285.88GiB devid 1 size 353.90GiB used 349.90GiB path /dev/sda5 Label: none uuid: 229c7745-144f-4dd0-98c5-476248b308ad Total devices 1 FS bytes used 384.00KiB devid 1 size 348.77GiB used 1.02GiB path /dev/sda3
/dev/sda5 is 286GB used with as size of 354GB. Then says 350GB used.
/dev/sda5 is mounted as
How do I get access to the ~60GB that it says are free, but are not?