thanks I did as you told and I no longer have overlay error message
LXC with nested Docker => "overlayfs: upper fs missing required features."
- Thread starter nicedevil
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i follow these but some parts i dont understand much as im just a newbie in this linux world. anyone please kindly at least show me step by step how to make a LXC that have docker use fuse-overlay so that i can install some of the docker images such as jdowloader2 or calibre as my current docker cant make it run 
especially if you are a newbie in this linux world : do not use docker inside lxc containers.
lxc containers have by far more bells and whistles and compatibility issues then ordinary vm's
take an ordinary linux os and install in a VM and install docker there.
especially when being a newbie, you should concentrate on learning things and not applying quirks or pulling your hair out because of weird behaviour which is hard to analyze/explain. docker inside lxc also may easily break because of pve updates
lxc containers have by far more bells and whistles and compatibility issues then ordinary vm's
take an ordinary linux os and install in a VM and install docker there.
especially when being a newbie, you should concentrate on learning things and not applying quirks or pulling your hair out because of weird behaviour which is hard to analyze/explain. docker inside lxc also may easily break because of pve updates
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Thanks for the tip but most of the VM use like a big iso because it have GUI. Is there anything lightweight and easy to use so i can start from there? i use LXC because most of tutorials on the net they use LXC so i just followed that path .
Thanks for your reply that when i switch to VM all the problem solved. however i can't find the debian minimal you mention so i ended up using ubuntu live server 22. Now everything works but i cost me more than 2Gb of ram for calibre and jdownloader docker containers, way more than when i'm using LXC. so i think i need to turn off and on when i need it. Again thanks for your help.
Just use an ordinary Debian install iso and do not install any GUI.
i follow these but some parts i dont understand much as im just a newbie in this linux world. anyone please kindly at least show me step by step how to make a LXC that have docker use fuse-overlay so that i can install some of the docker images such as jdowloader2 or calibre as my current docker cant make it run
I migrated my Docker container installation from ZFS to Ceph (Ceph shows as ext4 in a container). Ubuntu 20-04, unprivileged, nesting=1, keyctl=1, apt install docker.io, docker run hello-world
In my lab environment containers save so many resources (memory, cpu, disk) that I can run Ceph on my three node cluster (4 x 2TB SSDs, 24GB mem, 2x10Gb NICs, per node) and not notice any slowdown as compared to mirrored ZFS.
In my lab environment containers save so many resources (memory, cpu, disk) that I can run Ceph on my three node cluster (4 x 2TB SSDs, 24GB mem, 2x10Gb NICs, per node) and not notice any slowdown as compared to mirrored ZFS.