SnugglyDino

How do I fix this error when installing a docker container? What does it mean? docker: Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error mounting "/mnt/user/appdata/postgresql_alpine" to rootfs at "/var/lib/postgresql/data": change mount propagation through procfd: open o_path procfd: open /var/lib/docker/btrfs/subvolumes/93598d4db74bc40f1c319adf4ada747e78f880d725d690e63d36c8c4cb73c9e5/var/lib/postgresql/data: no such file or directory: unknown. Not sure if it's related but I recently converted my Docker Service, Docker data-root from "btrfs vDisk" to "Directory". I can install other Apps from the community store just fine. Attached Diagnostics just incase that helps and below is all the info I have from the docker install. There are no other logs that I'm aware of. docker run -d --name='PostgreSQL_Alpine' --net='dinopark' --pids-limit 2048 -e TZ="America/Los_Angeles" -e HOST_OS="Unraid" -e HOST_HOSTNAME="FossilTower" -e HOST_CONTAINERNAME="PostgreSQL_Alpine" -e 'POSTGRES_DB'='postgres' -e 'POSTGRES_USER'='postgres' -e 'POSTGRES_PASSWORD'='postgres' -l net.unraid.docker.managed=dockerman -l net.unraid.docker.icon='' -p '5432:5432/tcp' -v '/mnt/user/appdata/postgresql_alpine':'/var/lib/postgresql/data':'rw' --user=99:100 --memory=2G --restart=unless-stopped 'postgres:alpine' WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. 78493e6f64fb7919b98a4349bdc5ee164b1f762653aa8a0db2a50188bd39c0ad docker: Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error mounting "/mnt/user/appdata/postgresql_alpine" to rootfs at "/var/lib/postgresql/data": change mount propagation through procfd: open o_path procfd: open /var/lib/docker/btrfs/subvolumes/93598d4db74bc40f1c319adf4ada747e78f880d725d690e63d36c8c4cb73c9e5/var/lib/postgresql/data: no such file or directory: unknown. The command failed. fossiltower-diagnostics-20251028-1727.zip

How can I tell which one is active? I'm assuming the one on the Cache drive is the one I am using but is there any way to double check? Or do I just have to delete the one on Disk 1 (after downloading the file for backup) and hope for the best?

Looks like the only thing in there is a docker.img file. Stopped the docker service and VM service. Ran the mover again with mover logging enabled. The docker.img file refuses to budge. Attached is the updated diagnostics. fossiltower-diagnostics-20251028-1443.zip

How do I get the system share off of disk1? I thought following the steps here (https://forums.unraid.net/topic/120220-fix-common-problems-more-information/?tab=comments#comment-1098683) would take all my system shares off of disk 1 and onto my cache.

The main reason I started poking around for things wrong with my Unraid server in general is because I keep getting the same error when I try to install/run PostgreSQL_Alpine and cannot figure out how to fix it. docker run -d --name='PostgreSQL_Alpine' --net='dinopark' --pids-limit 2048 -e TZ="America/Los_Angeles" -e HOST_OS="Unraid" -e HOST_HOSTNAME="FossilTower" -e HOST_CONTAINERNAME="PostgreSQL_Alpine" -e 'POSTGRES_DB'='postgres' -e 'POSTGRES_USER'='postgres' -e 'POSTGRES_PASSWORD'='postgres' -l net.unraid.docker.managed=dockerman -l net.unraid.docker.icon='' -p '5432:5432/tcp' -v '/mnt/cache/appdata/postgresql_alpine':'/var/lib/postgresql/data':'rw' --user=99:100 --memory=2G --restart=unless-stopped 'postgres:alpine' WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. cb5a7a7e0206cc37227a6d75e50ec02c16c3158de74aec4e115300e4edb3090f docker: Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error mounting "/mnt/cache/appdata/postgresql_alpine" to rootfs at "/var/lib/postgresql/data": change mount propagation through procfd: open o_path procfd: open /var/lib/docker/btrfs/subvolumes/0f5abc07d057f62fa3844b35cde2d395159746f4ef38822f226b2134c26781cc/var/lib/postgresql/data: no such file or directory: unknown. The command failed.

The reason for changing my settings share from Cache + Array to Cache only is that I recently converted my Docker data-root from "btrfs vDisk" to "Directory" and in the more information Unraid states "You must specify a folder for Docker. The system will automatically create this folder when the Docker service is first started. It is recommended to create this folder under a share which resides on the Cache pool (setting: cache=Only). For best performance SSD devices are preferred."

How can I fix "Share system set to cache-only, but files / folders exist on the array... You should change the shares settings appropriately or use the dolphin / krusader docker applications to move the offending files accordingly. Note that there are some valid use cases for a set up like this. In particular: THIS More Information"? I followed @Squid 's steps found on his post back in 2022 (https://forums.unraid.net/topic/120220-fix-common-problems-more-information/?tab=comments#comment-1098683). Changed the "Secondary Storage" from "none" to "Array". Set the mover to "Array -> Cache" and then ran the mover. Then realized I forgot to stop my Docker containers and VMs. So I went into my Unraid Settings turned off Docker and VM and then ran the mover again multiple times. Changed the "Secondary Storage" back to "none". Still got the same error. Restarted my server. Still got the same error. Tried all the steps one more time. Still got the same error. Even ran the mover with "Secondary Storage" set to "none" just in case. No change. What am I doing wrong here? I've attached to Diagnostic files to help with debugging. fossiltower-diagnostics-20251028-1229.zip

Sounds good. I'll return it to default. Thank you for all your help. Now I can go back to enjoying the rabbit hole that is the Community Apps hahaha. Also if you got any other words of wisdom, I would love to hear it! Even if it is off topic for this thread now.

Oh looks like I have that going to. Don't remember setting it up lol.

You make a very good point. How do I backup to an off server location? Unrelated to backups. But do you have a recommendation for Mover settings/schedule?

My license key is tied to my Unraid.net account. And this is probably a big no no but I just have everything being backed up to the server itself

deleted Steps followed. Looks like everything is the way it should be. I attached the diagnostics as well. jurassicpark-diagnostics-20250206-0310.zip

You are 100% right. 1.5TB was a bad choice. So I did change it but wanted to play things a bit safe. So I set it to 100G

I just did a "compute all" instead. Figured it would be more insightful. Hopefully that's ok.

Sorry for my slow response. It has been another busy day and I cannot get to my hobbies as quickly as I like to more often than not. So I have not read your most recent 3 comments. Before I do I wanted to give you a server update. It looks like good news. My server has successfully freed up my entire cache drive (see pic). The bad news. I have no idea why. I have attached a new diagnostics file in case it can provide any insight on what changed since last night. jurassicpark-diagnostics-20250206-0117.zip