Alright, so on the beginning I’ll say that I’m not a master at Linux and that it is my first post here. If you’ll need me to do anything, I’ll do my best, but I can’t promise I’ll be successful. Also I can name terms, programs etc. wrong.
uname -a
Linux XXXXXX 5.3.0-51-generic #44~18.04.2-Ubuntu SMP Thu Apr 23 14:27:18 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
lxc --version
lxd --version
4.0.1
dpkg -s zfsutils-linux (Only version)
Version: 0.7.5-1ubuntu16.9
So, a bit of context…
I want to clarify is that this problem is a couple problems bundled together.
So I made a new storage in LXC, lxc storage create xxxx zfs size=20G.
I also made a new container, lxc launch ubuntu yyyy -s xxxx.
Everything was fine until I wanted to move my server files into another place.
I started copying files into a new directory which then I would’ve zipped.
It was doing that until the container ran out of space.
At that time I didn’t know that when a container from LXC runs out of space it’ll turn off completely and you won’t be able to turn it back on.
Error, when trying to launch the container
lxc info --show-log xxxx didn’t display any logs.
Message displayed after typing the command above
So I thought to increase size in the config of this storage.
Modified container's configuration
Nothing.
I read here that when you are providing storage's size it is actually it’s “starting” size and it should expand automatically. (But it doesn’t seem to do that?)
Later I found this.
So I started doing a copy of the disk’s image from /var/snap/lxd/common/lxd/disks/xxxx.img to /var/snap/lxd/common/lxd/disks/xxxx-copy.img using cp.
After it finished copying, I increased the size of this new image according to the guide and it worked, but when I tried to create a new pool using this new image,
zpool create xxxx-copy /var/snap/lxd/common/lxd/xxxx-copy.img.
An error appeared saying that this image was already assigned to the original pool made by LXC.
Though after checking if the original pool didn’t have this new image connected using
zpool status xxxx…
No image is connected to the pool
So, the only thing I can think that can be happening is that this “connection” is contained only in this pool “manager”, but also in the image itself. Because of this, I also tried detaching the original image from the original pool to “disconnect” them using
zpool detach xxxx /var/snap/lxd/common/lxd/disks/xxxx.img.
But then this error appeared.
But I coulnd’t find information about these image types and the way of changing them.
Yes, I tried Google’ing.
I thought that maybe there exists some kind of file browser or an “unpacker” for these images, but I couldn’t find anything.
The only thing I want to do at this moment is to get these files out of this image, because they are just stuck there and they’re really important to me.
If there is a need for me to test something, to do, or to confirm something. I’ll try to respond ASAP. Like I said this is important to me.
