我最近一直在研究 LXC/LXD，结果发现有几个容器停止了：
❯ lxc list
+------------------------------------+---------+------+------+-----------+-----------+
| NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS |
+------------------------------------+---------+------+------+-----------+-----------+
| build | STOPPED | | | CONTAINER | 0 |
+------------------------------------+---------+------+------+-----------+-----------+
| build-2020-05-27-180024-06f86fd0ac | STOPPED | | | CONTAINER | 0 |
+------------------------------------+---------+------+------+-----------+-----------+
清理时间：
❯ lxc delete build
Error: Error deleting storage volume: Failed deleting subvolume "/var/snap/lxd/common/lxd/storage-pools/default/containers/build": Failed to run: btrfs subvolume delete /var/snap/lxd/common/lxd/storage-pools/default/containers/build: ERROR: cannot delete '/var/snap/lxd/common/lxd/storage-pools/default/containers/build': No space left on device
❯ lxc storage info default
info:
description: ""
driver: btrfs
name: default
space used: 970.61MB
total space: 1000.00MB
used by:
containers:
- build
- build-2020-05-27-180024-06f86fd0ac
images:
- 40775fd923e2a77f56ce3c028ce22ad43b9254bb12766b12eeeefb32a3a145da
profiles:
- default
显然音量太小了。我解决这个问题的简单方法是通过 将音量大小从 增加到。1G由于没有明显的方法应用更改的设置，我相信它会自动应用。结果发现并非如此（正如事后所报告的那样）。10GBlxc storage edit defaultlxc storage editlxc storage info default
下次尝试：让我们删除叛乱卷，以便我可以删除容器：
❯ lxc storage volume list default
+-----------+------------------------------------------------------------------+-------------+---------+
| TYPE | NAME | DESCRIPTION | USED BY |
+-----------+------------------------------------------------------------------+-------------+---------+
| container | build | | 1 |
+-----------+------------------------------------------------------------------+-------------+---------+
| container | build-2020-05-27-180024-06f86fd0ac | | 1 |
+-----------+------------------------------------------------------------------+-------------+---------+
| image | 40775fd923e2a77f56ce3c028ce22ad43b9254bb12766b12eeeefb32a3a145da | | 1 |
+-----------+------------------------------------------------------------------+-------------+---------+
❯ lxc storage volume delete default build-2020-05-27-180024-06f86fd0ac
Error: not found
现在我有点不知所措。我有什么选择可以删除容器（或调整卷大小 - 这反过来应该允许删除）？
更新 1：以下是有关所用系统的一些规格。
❯ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04 LTS
Release: 20.04
Codename: focal
❯ snap list | grep lxd
lxd 4.1 15161 latest/stable canonical* -
更新 2：同时，我尝试“手动”调整卷大小，如下所示：
truncate -s +500G /var/snap/lxd/common/lxd/disks/default.img
mount -t btrfs /var/snap/lxd/common/lxd/disks/default.img /mnt/test
sudo btrfs filesystem resize max /mnt/test/
reboot # because why not, hopfeully lxd catches up
重启后，我可以成功删除图像和卷。
此时一切看起来都很好。然而，当我创建一个新容器时，它拒绝删除它，并出现与上述相同的症状。卷也是如此。
据说lxc storage show default升级到 10G 后重启后 lxd 就能识别。我认为不可能真的达到了 10G 容量。