So, in the process of recovering from a disk-full situation during an otherwise normal Discourse upgrade, I realized that we are apparently using the “devicemapper” Docker storage driver, which seems to be heavily discouraged for Discourse, as I gather from other threads here. What would be the recommended procedure to fix that and use the recommended driver instead (aufs, right?) – backup/reinstall/restore, or is there an easier way? This is on an EC2 instance with AMI Linux 2016.03 and Docker v1.11.1. And on a more general note: I stumbled upon this devicemapper thing pretty much accidentally; according to other threads, it shouldn’t even have been possible to set up Discourse this way? I may have missed a warning fly past, but I’m sure I did not deliberately override anything during the installation process. I set it up according to the guide on GitHub around the end of May. Let me know if there is anything I can do to help prevent this for others in the future.

Any solution found here? I seem to be in the same boat. I have a fairly large community running on this and looking to upgrade.

I didn’t find one… that (very small) Discourse installation worked fine while it lasted, but it’s long gone now, and I haven’t touched AMI Linux since then :slight_smile:

Can you post/search on forums.docker.com and link the related post here?

How to switch from Docker devicemapper to something less problematic

Product Support

volksman 2018 年 8 月 2 日午後 11:00 5

All good…Found a solution here Change the Docker storage backend

トピック		返信	表示
Change the Docker storage backend Sysadmins docker , how-to	4	23136	2024 年 10 月 22 日
Upgrade and rebuild reporting I need to use Aufs instead of Devicemapper (on CentOS) Product Support	24	3258	2019 年 6 月 19 日
(Re)Installing Discourse with Docker on CentOS 7 Self-hosting	6	1883	2017 年 7 月 3 日
Docker Upgrade Removed AUFS Storage Driver, Killed Discourse Self-hosting	5	1003	2024 年 5 月 16 日
Can't run ./launcher rebuild app - Docker storage driver is unsupported Product Support	71	13878	2019 年 8 月 26 日

How to switch from Docker devicemapper to something less problematic

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