Re: Cannot resize filesystem: not enough free space

[Hugo Mills <hugo@carfax.org.uk>]

On Sun, Jan 24, 2021 at 07:23:21PM +0100, Jakob Schöttl wrote:
> 
> Help please, increasing the filesystem size doesn't work.
> 
> When mounting my btrfs filesystem, I had errors saying, "no space left
> on device". Now I managed to mount the filesystem with -o skip_balance but:
> 
> # btrfs fi df /mnt
> Data, RAID1: total=147.04GiB, used=147.02GiB
> System, RAID1: total=8.00MiB, used=48.00KiB
> Metadata, RAID1: total=1.00GiB, used=458.84MiB
> GlobalReserve, single: total=181.53MiB, used=0.00B

   Can you show the output of "sudo btrfs fi show" as well?

   Hugo.
 
> It is full and resize doesn't work although both block devices sda and
> sdb have more 250 GB and more nominal capacity (I don't have partitions,
> btrfs is directly on sda and sdb):
> 
> # fdisk -l /dev/sd{a,b}*
> Disk /dev/sda: 232.89 GiB, 250059350016 bytes, 488397168 sectors
> [...]
> Disk /dev/sdb: 465.76 GiB, 500107862016 bytes, 976773168 sectors
> [...]
> 
> I tried:
> 
> # btrfs fi resize 230G /mnt
> runs without errors but has no effect
> 
> # btrfs fi resize max /mnt
> runs without errors but has no effect
> 
> # btrfs fi resize +1G /mnt
> ERROR: unable to resize '/mnt': no enough free space
> 
> Any ideas? Thank you!

-- 
Hugo Mills             | Attempted murder, now honestly, what is that? Do
hugo@... carfax.org.uk | they give a Nobel Prize for attempted chemistry?
http://carfax.org.uk/  |
PGP: E2AB1DE4          |                                          Sideshow Bob