currently, I have a Raspberry Pi 2B with an older version of NCP on the SD card. The SD card got broken but I have a backup of the data on a USB stick (Backup of NCP and data files). I have another USB stick with the data files on it. Now, I want to buy a new Raspberry Pi 4 (4GB), a new SD card and two new USB sticks to increase storage space.
My current plan would look like this:
Flash new SD card with the newest image of NCP
Boot the new Pi with the new SD card
Restore the backup of the ncp instance of the backup USB stick to the new SD card
Copy the content from the data USB stick to the new data USB stick
Copy the content of the backup USB stick to the new backup USB stick
Update the NCP instance to the newest version
I don’t know yet how to perform steps 4 and 5 properly. I would firstly format the new USB sticks to BTRFS format (the format of the old sticks). Then I could simply copy the content of the old stick to the new stick with the cp-command, I guess.
Is this the way to go? What procedure would you recommend?
You must differ between your files (on the file-system under …/data) and all configuration (users, shares, contacts, …) in the MariaDB. Perhaps you do only use a few shares and you can easy re-create them (10 minutes, one hour, …).
buy a new pi, new sd-card, new usb-stick
install the newest NextcloudPi (e.g. use BTRFS)
add your user/users in the new empty nextcloud
copy only the files (…/data/user/files) from OLD to NEW
use “… php occ files:scan --all” (perhaps it differ on NCP) to recan all new files
re-create all shares, contacts, … (they are all lost)
make a new backup
I think it is also possible to restore it on a new system. The problem is the release. Perhaps you must use the old release and update all releases. In my version you have only the newest version without upgraded version.
Raspberry Pi is not the only, nor the best choice for running NC, depending budget, there are alternatives.
Since you are using btrfs snapshots, you can still follow the steps in docs to backup and restore (without data) using ncp-config, or use ncp-web:4443 .
Migrating to new hardware is basically same thing as restoring to old one.
If you need to update NC, dont skip major versions, from 16 go 17, then to 18.