# Migration error in 'rename\_discourse\_rewind\_disabled\_to\_enabled'
**URL:** https://meta.discourse.org/t/migration-error-in-rename-discourse-rewind-disabled-to-enabled/393049
**Category:** Self-hosting
**Created:** [8 januari 2026 om 16:28 UTC](https://meta.discourse.org/t/migration-error-in-rename-discourse-rewind-disabled-to-enabled/393049 "2026-01-08T16:28:20Z")
**Posts on this page:** 1
**Showing post:** 1
### Author:  [@sniper756](https://meta.discourse.org/u/sniper756)
#### Post date: [8 januari 2026 om 16:28 UTC](https://meta.discourse.org/t/migration-error-in-rename-discourse-rewind-disabled-to-enabled/393049/1 "2026-01-08T16:28:20Z")
重新rebuild 失败了~日志如下：
```plaintext
discourse -c 'bundle exec rake db:migrate'
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled: (StandardError)
You must drop a column's default value before marking it as readonly
```
```plaintext
I, [2026-01-08T16:18:49.016491 #1] INFO -- : Terminating async processes
I, [2026-01-08T16:18:49.018961 #1] INFO -- : Sending INT to HOME=/var/lib/postgresql USER=postgres exec chpst -u postgres:postgres:ssl-cert -U postgres:postgres:ssl-cert /usr/lib/postgresql/15/bin/postmaster -D /etc/postgresql/15/main pid: 46
I, [2026-01-08T16:18:49.020147 #1] INFO -- : Sending TERM to exec chpst -u redis -U redis /usr/bin/redis-server /etc/redis/redis.conf pid: 113
2026-01-08 16:18:49.019 UTC [46] LOG: received fast shutdown request
113:signal-handler (1767889129) Received SIGTERM scheduling shutdown...
2026-01-08 16:18:49.023 UTC [46] LOG: aborting any active transactions
2026-01-08 16:18:49.034 UTC [46] LOG: background worker "logical replication launcher" (PID 60) exited with exit code 1
2026-01-08 16:18:49.040 UTC [55] LOG: shutting down
2026-01-08 16:18:49.042 UTC [55] LOG: checkpoint starting: shutdown immediate
2026-01-08 16:18:49.057 UTC [55] LOG: checkpoint complete: wrote 32 buffers (0.1%); 0 WAL file(s) added, 0 removed, 0 recycled; write=0.007 s, sync=0.004 s, total=0.017 s; sync files=16, longest=0.002 s, average=0.001 s; distance=180 kB, estimate=180 kB
2026-01-08 16:18:49.067 UTC [46] LOG: database system is shut down
113:M 08 Jan 2026 16:18:49.108 # User requested shutdown...
113:M 08 Jan 2026 16:18:49.108 * Saving the final RDB snapshot before exiting.
113:M 08 Jan 2026 16:18:49.123 * DB saved on disk
113:M 08 Jan 2026 16:18:49.123 # Redis is now ready to exit, bye bye...
FAILED
--------------------
Pups::ExecError: cd /var/www/discourse && su discourse -c 'bundle exec rake db:migrate' failed with return #
Location of failure: /usr/local/lib/ruby/gems/3.3.0/gems/pups-1.3.0/lib/pups/exec_command.rb:131:in `spawn'
exec failed with the params {"cd"=>"$home", "tag"=>"migrate", "hook"=>"db_migrate", "cmd"=>["su discourse -c 'bundle exec rake db:migrate'"]}
bootstrap failed with exit code 1
**FAILED TO BOOTSTRAP** please scroll up and look for earlier error messages, there may be more than one.
./discourse-doctor may help diagnose the problem.
```
---
_[View the full topic](https://meta.discourse.org/t/migration-error-in-rename-discourse-rewind-disabled-to-enabled/393049)._