Issue with restoring nextcloud and synapse from backup

My YunoHost server

Hardware: VPS bought online
YunoHost version: 11.0.9.15
I have access to my server : Through SSH
Are you in a special context or did you perform some particular tweaking on your YunoHost instance ? : yes
If yes, please explain: I have a catchall domain setup

Description of my issue

I was trying to move from one VPS to another and used the backup function. Everything worked, besides bringing back two apps: nextcloud and synapse. The restore logs can be found here:
https://paste.yunohost.org/raw/juxilazuze - nextcloud
https://paste.yunohost.org/raw/ragutuxusu - synapse

Hi Kavelach, welcome to the forums!

At the bottom of the Synapse-log, I see:

2022-10-05 21:02:06,225: WARNING - The user 'synapse' already exists

You could try removing the ‘synapse’ user, and then restore the backup again.

One way to check for the existence of a user, is looking in the shadow-file:

$ sudo cat /etc/shadow | grep synap

At the bottom of the Nextcloud-log, some missing directories are listed. Did you also restore the users? Maybe some users got deleted over time on the old server, without removing the directories for one reason or another.


2022-10-05 21:01:11,913: DEBUG - + ln -sfn /home/yunohost.multimedia/test /home/test/Multimedia
2022-10-05 21:01:11,914: DEBUG - + chown -R test /home/yunohost.multimedia/test
2022-10-05 21:01:11,916: DEBUG - + setfacl -RnL -m g:multimedia:rwX,g::rwX,o:r-X /home/yunohost.multimedia
2022-10-05 21:01:11,918: WARNING - setfacl: /home/yunohost.multimedia/share/Podcasts: No such file or directory
2022-10-05 21:01:11,919: WARNING - setfacl: /home/yunohost.multimedia/share/Playlists: No such file or directory
2022-10-05 21:01:11,920: WARNING - setfacl: /home/yunohost.multimedia/robert/Share/Podcasts: No such file or directory
2022-10-05 21:01:11,920: WARNING - setfacl: /home/yunohost.multimedia/robert/Share/Playlists: No such file or directory
2022-10-05 21:01:11,920: WARNING - setfacl: /home/yunohost.multimedia/test/Share/Podcasts: No such file or directory
2022-10-05 21:01:11,920: WARNING - setfacl: /home/yunohost.multimedia/test/Share/Playlists: No such file or directory
2022-10-05 21:01:11,921: WARNING - setfacl: /home/yunohost.multimedia/amelia/Share/Podcasts: No such file or directory
2022-10-05 21:01:11,921: WARNING - setfacl: /home/yunohost.multimedia/amelia/Share/Playlists: No such file or directory
2022-10-05 21:01:11,922: DEBUG - + ynh_exit_properly
2022-10-05 21:01:11,922: WARNING - setfacl: /home/yunohost.multimedia/synapse/Share/Podcasts: No such file or directory
2022-10-05 21:01:11,922: WARNING - setfacl: /home/yunohost.multimedia/synapse/Share/Playlists: No such file or directory
2022-10-05 21:01:11,922: WARNING - setfacl: /home/yunohost.multimedia/kacper/Share/Podcasts: No such file or directory
2022-10-05 21:01:11,923: WARNING - setfacl: /home/yunohost.multimedia/kacper/Share/Playlists: No such file or directory
2022-10-05 21:01:11,923: WARNING - setfacl: /home/yunohost.multimedia/laptop/Share/Podcasts: No such file or directory
2022-10-05 21:01:11,924: WARNING - setfacl: /home/yunohost.multimedia/laptop/Share/Playlists: No such file or directory
2022-10-05 21:01:11,924: WARNING - setfacl: /home/yunohost.multimedia/kavelach/Share/Podcasts: No such file or directory
2022-10-05 21:01:11,924: WARNING - setfacl: /home/yunohost.multimedia/kavelach/Share/Playlists: No such file or directory
2022-10-05 21:01:13,431: ERROR - Could not restore nextcloud: An error occured inside the app restore script

You could check whether the directories exist, and create them manually if they are not there.
If they are not needed, you can later remove the entries in Nextcloud and then from the filesystem.

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By doing these things I managed to restore the backup! Thanks <3

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