[arch-general] Btrfs blues - lack of space

[Jakub Klinkovský]

On 30.08.14 at 23:09, Savyasachee Jha wrote:
> Hello, all
> 
> The contents of my /etc/fstab are as follows:
> 
> /dev/sda3               /             btrfs
> rw,relatime,space_cache,autodefrag    0 0
> /dev/sda1               /boot         ext2          rw,relatime    0 2
> /dev/sda5               /home       btrfs
> rw,relatime,space_cache,autodefrag    0 0
> 
> Whenever I start my laptop up, /home takes ~17-19 seconds to mount, as is
> evidenced by this line in the output of systemd-analyze blame:
> 
> 16.467s home.mount
> 
> Running df -h on my system, I get:
> 
> Filesystem       Total    Used   Free   Use%     Mounted on
> /dev/sda5         422G   364G   53G   88%        /home
> 
> However, running du -h --summarize /home, I get:
> 
> 318G /home
> 
> If I use xdiskusage to see the partition, it shows 46.48G as
> /home/(permission denied). I tried doing this using sudo, and I still have
> the same problem. I have neither subvolumes nor any snapshots on this
> volume.
> 
> Is there any way of recovering this space?
> 
> Thank you,
> Savya
> 
> --
> Savyasachee Jha
> 
> *"Aerodynamics is for people whodon't know how to build engines."*

Use:
$ btrfs filesystem df /home
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