[2026-05-11 02:05:14] Reconnecting to the database... [2026-05-11 02:05:14] Reloading site settings... [2026-05-11 02:05:14] Disabling outgoing emails for non-staff users... [2026-05-11 02:05:14] Running seed fu... [2026-05-11 02:05:31] Disabling readonly mode... [2026-05-11 02:05:31] Clearing categ…

Did you try to downgrade aws-sdk-s3: [image] Can't rebuild due to AWS SDK gem bump and new AWS Data Integrity Protections Self-hosting But I did for a site that’s using Backblaze. I created a template I put in /root/aws-revert-template.yml with this: # This te…

[image] iouvps: [2026-05-11 02:05:33] EXCEPTION: You can only specify one non-default checksum at a time. i think there may be a problem with the s3 compatibility? is the instance you are restoring to up-to-date with Discourse latest version? [image] iouvps: /var/www/discourse/lib/file_…

@Lilly 由于服务器到期，需要迁移到新的服务器，我先备份了discourse数据把app.yml同步到新服务器，然后在新服务器 ./launcher rebuild app 然后把备份数据上传到新服务器的/var/discourse/shared/standalone/backups/default 使用命令 ./launcher enter app discourse enable_restore discourse restore xxxxxxxxxxxxxxxxxxxxx.tar.gz 恢复失败，我重建新的discourse后从后台进行恢复还是失败，附件是恢复日志 l…

Tell us about your environment, for example which object store are you using?

Ubuntu 24.04.4 LTS (x86_64) Cloudflare R2

@supermathie 使用Cloudflare R2是不是不兼容啊

Yes, there seems to be an incompatibility with R2. Untested, but you could try this: Environment variables are set in your container’s app.yml under the env block — the same place you already have things like DISCOURSE_S3_ACCESS_KEY_ID. Just add the two vars there: env: LANG: en_US.UTF-8 # ..…

@gerhard 我尝试这个方法还是不行现在的问题是我的就服务器已经停机了，我只有备份的数据和app.yml了

These values are noted in our guide . Can you post the redacted ENV block here so we can see if something else is wrong?

现在想办法把数据恢复了，但是rake uploads:migrate_to_s3一直错误

Failed to restore data after migrating Discourse

Support Self-hosting

xlg256 (Leo) May 18, 2026, 2:00am 11

Did you try to downgrade aws-sdk-s3:

Topic		Replies	Views
Restore failed at "EXCEPTION: x of y uploads are not migrated to S3. S3 migration failed for db 'default'." Self-hosting	4	1156	June 10, 2022
Restore fails due to s3 migration failure Support	2	106	August 12, 2026
Restore to New Host Support	13	723	January 15, 2026
Restore process cancelled at migrating uploads to S3 step Support	48	3502	January 24, 2026
Intended path to migrate S3 to local Self-hosting uploads , s3	5	919	May 13, 2023

Failed to restore data after migrating Discourse

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