Hi @stgraber, thanks for your help.
Should I do the ‘btrfs filesystem resize’ on my container?
If not, on which loop device then?
This is on my host-server:
/dev/loop0 55M 55M 0 100% /snap/lxd/8393
/dev/loop2 88M 88M 0 100% /snap/core/5328
/dev/loop3 87M 87M 0 100% /snap/core/4917
/dev/loop4 87M 87M 0 100% /snap/core/5145
/dev/loop5 55M 55M 0 100% /snap/lxd/8415
/dev/loop1 55M 55M 0 100% /snap/lxd/8339
Thank you!
EDIT:
# lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL
NAME FSTYPE SIZE MOUNTPOINT LABEL
loop0 squashfs 54.6M /snap/lxd/8393
loop1 squashfs 54.6M /snap/lxd/8339
loop2 squashfs 87.9M /snap/core/5328
loop3 squashfs 86.9M /snap/core/4917
loop4 squashfs 87M /snap/core/5145
loop5 squashfs 54.6M /snap/lxd/8415
loop6 btrfs 10G default
sda 30G
|-sda1 ext2 243M /boot
`-sda2 LVM2_member 29.8G
|-noc--01--vg-root ext4 27.8G /
`-noc--01--vg-swap_1 swap 2G [SWAP]
sr0 1024M
# btrfs filesystem resize max /dev/loop6
ERROR: resize works on mounted filesystems and accepts only
directories as argument. Passing file containing a btrfs image
would resize the underlying filesystem instead of the image.