Unable to Restore Encrypted Backup from backup UI after rotating encryption key

[dcmeglio]

The problem

I got an rpi 5 for Christmas and I wanted to migrate my install to it. Based on the discussion here https://discord.com/channels/330944238910963714/427516175237382144/1321850898581946519 this sounds impossible as the key for the "new" device is autopopulated and I can't enter the one from my emergency restore kit. @balloob commented it's being worked on, but I can't find any issue report for this so I wanted to make sure it's tracked as an open issue in case it wasn't already.

Without this functionality I don't think there is a way to migrate HA to new hardware? We believe it's possible this bug may pre-date 2025.1, but since encrypted backups are now mandatory, the issue will be more widespread.

What version of Home Assistant Core has the issue?

2025.1.0b2

What was the last working version of Home Assistant Core?

NA

What type of installation are you running?

Home Assistant OS

Integration causing the issue

backup

Link to integration documentation on our website

https://www.home-assistant.io/integrations/backup/

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response

[home-assistant]

Hey there @home-assistant/core, mind taking a look at this issue as it has been labeled with an integration (backup) you are listed as a code owner for? Thanks!

Code owner commands

Code owners of backup can trigger bot actions by commenting:

• @home-assistant close Closes the issue.
• @home-assistant rename Awesome new title Renames the issue.
• @home-assistant reopen Reopen the issue.
• @home-assistant unassign backup Removes the current integration label and assignees on the issue, add the integration domain after the command.
• @home-assistant add-label needs-more-information Add a label (needs-more-information, problem in dependency, problem in custom component) to the issue.
• @home-assistant remove-label needs-more-information Remove a label (needs-more-information, problem in dependency, problem in custom component) on the issue.

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backup documentation
backup source
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[def1149]

Confirmed. You can't manually set the key to restore a backup created by a previous key

[balloob]

You can upload and restore a backup during onboarding. This bug does not impact new hardware. The issue is when you open backup info page and the backup is encrypted with a different key than the currently set key in Home Assistant.