[Question] Safe to delete folders in the "update" folder?

[junghyuneun]

I am asking this question because I couldn't find any issue / doc related to this topic.

After flashing a new build, a new folder with the version name (ex: f7-update-mmtm-dev-${commitId}) is created in the update folder.

At first I didn't really care about it, but after I started flashing dev builds the number of folders keep increasing and they each take about ~10MB, so I can't really ignore it any more.

Is it safe to delete these folders? I am worried it might break the device because it contains files like backup.tar, firmware.dfu, firstboot.bin, and I am not sure if these files are just used at the time of update or if they are used every time I use the device.

Thanks in advance!

[Willy-JL]

Your suspicion is correct, the update folder contains update bundles, which during installation make a backup of internal settings for backwards compatibility (in the past the internal storage was reset at every firmware install so it made a backup and restored after, now internal storage is fake and lives on sd card but it is still backed up and restored for compatibility), and the firstboot file is specific to momentum, it is the intro animation you see when first installing momentum.

You're absolutely free to delete the update folder!