Restore Backup => request body exceeded"

goerdi · 1. September 2026 um 07:27

hallo !

Ich wollte heute meinen Homeassistant (HAOS) auf meinen Docker Container umziehen, aber beim Restore kommt immer die Fehlermeldung:

“Maximum request body size 16777216 exceeded.”

Das backup hat aber 76 MB… wie bekomme ich die Einstellungen rein ?

Gruss Gerd

Baxxy · 1. September 2026 um 09:54

Es gibt dazu ein Issue.
Da sind auch ein paar Workarounds drin die du probieren könntest.

github.com/home-assistant/core

Unable to restore backup made with HomeAssistant

offen 01:11AM - 09 Aug 26 UTC

Polydwarf

### The problem I am moving between two machines, both running docker. The sou…rce machine is currently at 2026.05.01. I did a manual backup and downloaded the tar file that HA created (it's about 67 megabytes, which is approximately the same size as my automated backups, I just wanted an up-to-the-minute backup). Trying to restore that backup file to a brand new HA instance on a new target machine was blocked because HA said it does not allow uploads more than 16 megabytes in size (at least, not from the getting started page on a brand new instance of HA) ### What version of Home Assistant Core has the issue? core-2026.8.1 ### What was the last working version of Home Assistant Core? _No response_ ### What type of installation are you running? Home Assistant Container ### Integration causing the issue _No response_ ### Link to integration documentation on our website _No response_ ### Diagnostics information _No response_ ### Example YAML snippet ```yaml ``` ### Anything in the logs that might be useful for us? ```txt ``` ### Additional information I spun up a new Ubuntu server machine, got docker installed, copied my docker compose over to it, and started HA (it pulled 2026.8.1 because I'm using :stable). Upon getting into the new 2026.8.1 web ui, at the create your new smart home screen, there's a button to restore from backup. I clicked it, selected my tar file, and was told that I could not upload files greater than 16 megabytes in size (while I know it doesn't matter for this issue, the target machine only has one partition, and it has 30 gigabytes free). This makes the web ui restore utility functionally broken for my HomeAssistant. I would say I'm a light to moderate user, but I have no real comparison other than "wow, other people do a lot more with their HomeAssistant than I do" **_Workaround_** I was able to update MAX_CLIENT_SIZE in server.py inside the container from 16 megabytes to 128 megabytes, and after restarting the container, I was able to upload my backup and the restore worked (no other changes were made, I used the same 67 megabyte tar file). What other effects that may have on any other aspect of HA, I have no idea. **_Reference_** https://github.com/home-assistant/core/issues/177999

goerdi · 1. September 2026 um 10:49

Hi !

Ah ok…. ich habs mal überflogen, da ich bei Docker zumindest ein Neuling bi, isses schwierig..

Wo z.B. finde ich die server.py im Docker Containe ?

Gruss Gerd

goerdi · 2. September 2026 um 08:14

Habs gefunden, Danke

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Restore Backup => request body exceeded"

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